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Nobles · Walk-behind floor scrubber
Nobles Speed Scrub 500 Service Manual
Before first use: charge the batteries overnight before you run the machine the first time.
COVER
Speed Scrub 500 walk-behind floor scrubber
Service Information Manual
Document 9015517, Rev. 01 (01-2018)
TennantTrue® Parts · IRIS® a Tennant Technology · Insta-Fit™ Adapter · Smart-Fill™ Automatic Battery Watering
For the latest Parts Manuals and other language Operator Manuals, visit: www.tennantco.com/manuals
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 1, used with permission. SES ref PF-ESFO-SJDS
SS500 9015517 (01-2018)Page 1 of 128
INTRODUCTION
Introduction
In shortThis page covers what the Speed Scrub 500 is meant for, where to find the serial number and how to uncrate the machine. Use the supplied ramp to take it off the pallet, with the scrub head raised.
This manual is available for each new model. It provides necessary operation and maintenance instructions.
Read this manual completely and understand the machine before operating or servicing it.
This machine will provide excellent service. However, the best results will be obtained at minimum costs if:
- The machine is operated with reasonable care.
- The machine is maintained regularly - per the machine maintenance instructions provided.
- The machine is maintained with manufacturer supplied or equivalent parts.
Protect the environment
Please dispose of packaging materials and used machine components such as batteries in an environmentally safe way according to your local waste disposal regulations.
Always remember to recycle.
Tennant Company
PO Box 1452
Minneapolis, MN 55440
Phone: (800) 553-8033
www.nobles.com
1-STEP is a trademark of Tennant Company.
Trojan® and HydroLINK® are registered trademarks of Trojan Battery Company.
Windows 7® is a registered trademark of the Microsoft Corporation.
This product may contain portions of software that have various 3rd party licenses. More information can be found at: www.tennantco.com/opensource
Specifications and parts are subject to change without notice.
Original Instructions. Copyright © 2017, 2018 Tennant Company.
Intended use
The Speed Scrub 500 walk-behind floor scrubber is intended for commercial use, for example in hotels, schools, hospitals, factories, shops, offices and rental businesses. It is designed to scrub hard floor surfaces (concrete, tile, stone, synthetic, etc.) in an indoor environment. This machine is not intended for cleaning carpets or sanding wood floors. Use only recommended pads/brushes and commercially available floor cleaning detergents. Do not use this machine other than described in the Operator Manual.
Machine data
Please fill out at time of installation for future reference.
Model No. - ____________
Serial No. - ____________
Installation Date - ____________
Serial number location
Uncrating machine
Carefully check machine for signs of damage. Report damages at once to carrier. Contact distributor or Tennant for missing items.
To uncrate the machine, remove straps, wheel blocks and shipping brackets. Using the supplied ramp carefully back the machine off the pallet. Make sure scrub head is in the raised position.
ATTENTION: Do not remove machine from pallet without using ramp, machine damage may occur.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 2, used with permission. SES ref PF-LRJ6-KDDD
SS500 9015517 (01-2018)Page 2 of 128
CONTENTS
Contents
- Contents
- Important safety instructions - save these instructions
- General information
- Machine components
- Scrub head types
- Electrical schematics
- Schematic symbols
- Operational matrix
- Fastener torque
- SAE (standard)
- Metric
- General machine dimensions/capacities/performance (North America / Intl)
- General machine dimensions/capacities/performance - North America / Intl (continued)
- Machine dimensions
- Dual disk model
- Maintenance
- Maintenance chart
- Machine maintenance
- Yellow touch points
- After daily use
- After weekly use
- After every 50 hours of use
- After every 100 hours of use
- Electric motors
- Belts (cylindrical brush model)
- Batteries
- Maintenance-free batteries
- Flooded (wet) lead-acid batteries
- Checking connections / cleaning
- Charging batteries
- Battery charger settings
- Changing on-board battery charger settings
- HydroLINK® battery watering system (Trojan® battery option)
- Automatic battery watering system (Trojan® battery option)
- Squeegee blade replacement
- EC-H2O water conditioning cartridge replacement
- Machine jacking
- Transporting machine
- Storing machine
- Faults and warnings
- Onboard battery charging on
- Batteries fail to charge / reduced run time (onboard charger)
- Off board battery charging on
- Batteries fail to charge / reduced run time (off board charger)
- Power up on
- Machine failed to power up
- Propel subsystem
- Machine failed to propel
- Scrub motor on
- Scrub motor failed to turn on
- Scrub head lift actuator
- Scrub head failed to lift / lower
- Vacuum fan on
- Vacuum fan failed to turn on
- Solution control on (conventional)
- Solution control failed to turn on (conventional)
- Solution control on (EC-H2O)
- Solution control failed to turn on (EC-H2O)
- ABW (automatic battery watering) (option)
- ABW (automatic battery watering) system failed to turn on
- I-Drive testing (universal schematic)
- I-Drive testing procedure
- Entering the manual mode
- Service diagnostics tool
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 3, used with permission. SES ref PF-SBXW-62SW
SS500 9015517 (01-2018)Page 3 of 128
CONTENTS
Contents (continued)
- Changing the off-board battery charger settings
- Cleaning systems
- Remove / install the transaxle assembly
- Removing / installing the drive motor carbon brushes
- Remove / install the cylindrical scrub head assembly
- Checking / adjusting the cylindrical scrub brush pattern
- Removing / installing the cylindrical scrub head motor carbon brushes
- Remove / install the disk scrub head assembly
- Removing / installing the disk scrub head motor carbon brushes
- Remove / install the orbital scrub head assembly
- Removing / installing the orbital scrub head motor carbon brushes
- Remove / install the lower orbital head isolators
- Removing / installing the vacuum fan
- Removing the vacuum fan carbon brushes
- Installing carbon brushes
- Removing / installing the water solenoid valve
- Connecting hoses to PTC (push-to-connect) fittings
- Disconnect hoses from PTC (push-to-connect) fittings
- Control modules
- Options
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 4, used with permission. SES ref PF-4JJE-A6TJ
SS500 9015517 (01-2018)Page 4 of 128
CONTENTS
This page is blank in the manual.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 5, used with permission. SES ref PF-GFAI-3F35
SS500 9015517 (01-2018)Page 5 of 128
SAFETY
Important safety instructions - save these instructions
In shortRead this chapter before you operate or service the machine. It covers fire, explosion and shock hazards, battery safety and what must be done before leaving or servicing the machine. Only trained people should repair it.
The following precautions are used throughout this manual as indicated in their descriptions:
WARNING: To warn of hazards or unsafe practices which could result in severe personal injury or death.
FOR SAFETY: To identify actions that must be followed for safe operation of equipment.
The following information signals potentially dangerous conditions to the operator. Know when these conditions can exist. Locate all safety devices on the machine. Report machine damage or faulty operation immediately.
WARNING: To Reduce the Risk of Fire, Explosion, Electric Shock or Injury:
- Read manual before operating machine.
- Do not use or pick up flammable materials or reactive metals.
- Do not use near flammable liquids, vapors or combustible dusts.
- This machine is not equipped with an explosion proof motor. The electric motor will spark upon start up and during operation which could cause a flash fire or explosion if machine is used in an area where flammable vapors/liquids or combustible dusts are present.
- Batteries emit hydrogen gas. Explosion or fire can result. Keep sparks and open flame away when charging.
- Disconnect battery cables and charger cord before cleaning and servicing machine.
- Do not charge batteries with damaged cord. Do not modify plug. If the charger supply cord is damaged or broken, it must be replaced by the manufacturer or its service agent or a similarly qualified person in order to avoid a hazard.
- Do not use outdoors. Store indoors.
- Spinning pad/brush, keep hands away.
WARNING: This machine contains chemicals known to the state of California to cause cancer, birth defects, or other reproductive harm.
IRIS Telemetry - This machine may be equipped with technology that automatically communicates over the cellular network. If the machine will be operated where cell phone use is restricted because of concerns related to equipment interference, please contact a Tennant representative for information on how to disable the cellular communication functionality.
FOR SAFETY:
- Do not operate machine:
- Unless trained and authorized.
- Unless operator manual is read and understood.
- Unless mentally and physically capable of following machine instructions.
- Under the influence of alcohol or drugs.
- While using a cell phone or other types of electronic devices.
- If it is not in proper operating condition.
- In outdoor areas. This machine is for indoor use only.
- In areas where flammable vapors/liquids or combustible dusts are present.
- With pads or accessories not supplied or approved by Tennant. The use of other pads may impair safety.
- In areas with possible falling objects.
- In areas that are too dark to safely see the controls or operate the machine.
- Before operating machine:
- Check machine for fluid leaks.
- Make sure all safety devices are in place and operate properly.
- When operating machine::
- Use only as described in this manual.
- Report machine damage or faulty operation immediately.
- Wear closed-toe, non-slip work shoes.
- Reduce speed when turning.
- Go slowly on inclines and slippery surfaces.
- The machine may only be operated on gradients up to 2%.
- Follow site safety guidelines concerning wet floors.
- Follow mixing, handling and disposal instructions on chemical containers.
- Do not carry passengers on machine.
- Use care when reversing machine.
- Keep children and unauthorized persons away from machine.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 6, used with permission. SES ref PF-HHTL-L276
SS500 9015517 (01-2018)Page 6 of 128
SAFETY
For safety (continued)
FOR SAFETY:
- Do not allow machine to be used as a toy.
- Do not use spray nozzle for off-aisle cleaning, slip hazard may occur.
- Do not leave machine unattended when filling solution tank with auto-fill feature.
- Before leaving or servicing machine:
- Stop on level surface.
- Set the parking brake, if equipped.
- Turn off machine and remove key.
- When servicing machine:
- Disconnect battery connection and charger cord before working on machine.
- All work must be done with sufficient lighting and visibility.
- All repairs must be performed by trained personnel.
- Use Tennant supplied or approved replacement parts.
- Do not modify the machine from its original design.
- Block machine tires before jacking machine up.
- Jack machine up at designed locations only. Support machine with jack stands.
- Use hoist or jack that will support the weight of the machine.
- Avoid moving parts. Do not wear loose clothing or jewelry and secure long hair.
- Do not disconnect the off-board charger’s DC cord from the machine’s receptacle when the charger is operating. Arcing may result. If the charger must be interrupted during charging cycle, disconnect the AC power supply cord first.
- Do not use incompatible battery chargers as this may damage battery packs and potentially cause a fire hazard.
- Inspect charger cord regularly for damage.
- Keep work area well ventilated.
- Avoid contact with battery acid.
- Keep all metal objects off batteries.
- Do not power spray or hose off machine. Electrical malfunction may occur. Use damp cloth.
- Use a hoist or adequate assistance when lifting batteries.
- Battery installation must be done by trained personnel.
- Only use distilled water when filling the automatic battery watering tank.
- Wear personal protection equipment as needed and where recommended in this manual.
FOR SAFETY:
- When loading/unloading machine onto/off truck or trailer:
- Drain tanks before loading machine.
- Use a ramp that can support the machine weight and operator.
- The machine may only be operated on gradients up to 2%.
- Lower the scrub head and squeegee before tying down machine.
- Turn machine off and remove key.
- Set parking brake (if equipped).
- Block machine wheels.
- Use tie-down straps to secure machine.
For Safety: wear protective gloves.
For Safety: wear eye protection.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 7, used with permission. SES ref PF-L32Z-7Y6X
SS500 9015517 (01-2018)Page 7 of 128
SAFETY
Safety labels - North America
The safety labels appear on the machine in the locations indicated. Replace labels if they are missing or become damaged or illegible.
- WARNING LABEL - Located on recovery tank cover. (To reduce the risk of fire, explosion, electric shock, or injury: read manual before operating machine; do not use or pick up flammable materials; do not use near flammable liquids, vapors or combustible dusts; batteries emit hydrogen gas, explosion or fire can result, keep sparks and open flame away when charging; disconnect battery cables and charger plug before servicing machine; do not charge batteries with damaged cord; do not use outdoors, store indoors. Printed in English, French and Spanish.)
- WARNING LABEL - Spinning brush. Keep hands away. Located on scrub head.
- WARNING LABEL - Batteries emit hydrogen gas. Explosion or fire can result. Keep sparks and open flame away when charging. Located on bottom side of recovery tank.
- WARNING LABEL - Electrical hazard. Disconnect battery cables before servicing machine. Located on circuit breaker panel.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 8, used with permission. SES ref PF-YVVP-SP6R
SS500 9015517 (01-2018)Page 8 of 128
SAFETY
This page is blank in the manual.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 9, used with permission. SES ref PF-N2DQ-5TJQ
SS500 9015517 (01-2018)Page 9 of 128
GENERAL INFORMATION
General information
In shortThis chapter names the machine parts, shows the electrical schematic symbols, lists the fastener torques and gives the machine specifications and dimensions. The numbered picture below matches the parts list on page 11.
Machine components
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 10, used with permission. SES ref PF-QQIN-X43O
SS500 9015517 (01-2018)Page 10 of 128
GENERAL INFORMATION
Machine components key
- Control handle
- Control handle start bail
- Control panel
- Forward/Reverse lever
- Speed control knob
- USB port (Service only)
- Key switch
- ec-H2O on/off switch (option)
- Emergency shut-off button
- Hour meter
- Solution tank rear hose fill-port
- Solution tank level/drain hose
- Recovery tank drain hose
- Circuit breaker panel
- On-board battery charger
- On-board battery charger cord hooks
- Off-board battery charger cord
- Off-board battery charger receptacle
- Squeegee lower/lift foot pedal
- Squeegee assembly
- Squeegee vacuum hose
- Squeegee debris/drip tray
- Recovery tank
- ec-H2O module (option)
- ec-H2O water conditioning cartridge
- Battery compartment
- Automatic battery watering tank (option)
- Solution tank
- Solution tank front bucket fill-port
- Scrub head
- Scrub head skirt
- Pad release plunger
- Wall rollers
- Parking brake (option)
- Transport tie-down bracket
- Recovery tank lid
- Recovery tank float shut-off screen
Scrub head types
- 26 in (650 mm) dual disk, 28 in (700 mm) dual disk and 32 in (800 mm) dual disk
- 28 in (700 mm) cylindrical brush
- 28 in (700 mm) orbital pad
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 11, used with permission. SES ref PF-WFZS-OVE5
SS500 9015517 (01-2018)Page 11 of 128
GENERAL INFORMATION
Electrical schematics
In shortThe symbols below are the ones used in this manual's electrical schematics, such as batteries, switches, relays, motors and connectors.
Schematic symbols
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 12, used with permission. SES ref PF-D26J-YDSS
SS500 9015517 (01-2018)Page 12 of 128
GENERAL INFORMATION
Schematics
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 13, used with permission. SES ref PF-26SO-HQM7
SS500 9015517 (01-2018)Page 13 of 128
GENERAL INFORMATION
Schematics (continued)
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 14, used with permission. SES ref PF-HEMU-MJLZ
SS500 9015517 (01-2018)Page 14 of 128
GENERAL INFORMATION
Operational matrix
In shortThis table shows what must be true for each machine function to run, and what shuts it off. A low-battery cutoff and the battery charger interlock disable most functions.
| Function | Enabled | Disabled |
|---|---|---|
| Propel | • Key ON (l) • Forward/Reverse Switch In FORWARD or REVERSE | • Key OFF (O) • Neutral - Bail Released • Recovery tank lifted • Propel Motor Controller Fault • Battery Charger ON Interlock |
| Vacuum Fan | • Key ON (l) • Squeegee Lowered - Foot Pedal | • Key OFF (O) • Squeegee Raised • Low Battery Voltage (Wet < 21.9 V, AGM < 22.7 V) • Fault • Battery Charger ON Interlock |
| Scrub Head Actuator | • Key ON (l) • Head Lowered - 1-Step | • Key OFF (O) • Head Raised - 1-Step • Low Battery Voltage (Wet < 21.9 V, AGM < 22.7 V) • Fault • Battery Charger ON Interlock |
| Main Scrub Motor | • Key ON (l) • Head Lowered - 1-Step • Forward/Reverse Switch - FORWARD or REVERSE • Bail Activated | • Key OFF (O) • Head Raised - 1-Step • Neutral - Bail Released • Recovery tank lifted • Low Battery Voltage (Wet < 21.9 V, AGM < 22.7 V) • Fault • Battery Charger ON Interlock |
| Solution Control (Conventional) | • Head Lowered - 1-Step • Solution Control ON • Forward/Reverse Switch - FORWARD or REVERSE • Bail Activated | • Head Raised - 1-Step • Solution Control OFF • Neutral - Bail Released • Low Battery Voltage (Wet < 21.9 V, AGM < 22.7 V) • Fault • Battery Charger ON Interlock |
| Solution Control (ec-H2O NanoClean - Optional) | • Head Lowered - Foot Pedal • Solution Control ON • ec-H2O Switch ON • Forward/Reverse Switch - FORWARD or REVERSE • Bail Activated | • Head Raised - 1-Step • Solution Control OFF • ec-H2O Switch OFF • Neutral - Bail Released • Low Battery Voltage (Wet < 21.9 V, AGM < 22.7 V) • ec-H2O System Fault • Battery Charger ON Interlock |
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 15, used with permission. SES ref PF-7IFF-OVAK
SS500 9015517 (01-2018)Page 15 of 128
GENERAL INFORMATION
Fastener torque
In shortUse these tightening torques for standard fasteners when no other value is given. Inch fasteners are listed in inch pounds and foot pounds, and metric fasteners are listed with imperial equivalents first.
SAE (standard)
| Torque unit | Thread size | SAE Grade 1 | SAE Grade 2 Carriage Bolts | Thread Cutting Thread Rolling | SAE Grade 5 Socket & Stainless Steel | SAE Grade 8 | Headless Socket Set Screws | Square Head Set Screws |
|---|---|---|---|---|---|---|---|---|
| Inch pounds | 4 (.112) | (5) - (6.5) | (4) - (6) | |||||
| 5 (.125) | (6) - (8) | (9) - (11) | ||||||
| 6 (.138) | (7) - (9) | (20) - (24) | (9) - (11) | |||||
| 8 (.164) | (12) - (16) | (40) - (47) | (17) - (23) | |||||
| 10 (.190) | (20) - (26) | (50) - (60) | (31) - (41) | |||||
| Foot pounds | 1/4 (.250) | 4 - 5 | 5 - 6 | 7 - 10 | 7 - 10 | 10 - 13 | 6 - 8 | 17 - 19 |
| 5/16 (.312) | 7 - 9 | 9 - 12 | 15 - 20 | 15 - 20 | 20 - 26 | 13 - 15 | 32 - 38 | |
| 3/8 (.375) | 13 - 17 | 16 - 21 | 27 - 35 | 36 - 47 | 22 - 26 | 65 - 75 | ||
| 7/16 (.438) | 20 - 26 | 26 - 34 | 43 - 56 | 53 - 76 | 33 - 39 | 106 - 124 | ||
| 1/2 (.500) | 27 - 35 | 39 - 51 | 65 - 85 | 89 - 116 | 48 - 56 | 162 - 188 | ||
| 5/8 (.625) | 80 - 104 | 130 - 170 | 171 - 265 | 228 - 383 | ||||
| 3/4 (.750) | 129 - 168 | 215 - 280 | 313 - 407 | 592 - 688 | ||||
| 1 (1.000) | 258 - 335 | 500 - 650 | 757 - 984 | 1281 - 1489 |
Values in parentheses are inch pounds, as printed in the manual.
Metric
| Thread size | 4.8/5.6 | 8.8 Stainless Steel | 10.9 | 12.9 | Set Screws |
|---|---|---|---|---|---|
| M3 | 3.8 - 5.0 in-lb (43 - 56 Ncm) | 8.8 - 11 in-lb (99 - 128 Ncm) | 12 - 16 in-lb (139 - 180 Ncm) | 15 - 19 in-lb (166 - 215 Ncm) | 5.4 - 7.0 in-lb (61 - 79 Ncm) |
| M4 | 8.8 - 11 in-lb (99 - 128 Ncm) | 20 - 26 in-lb (223 - 290 Ncm) | 28 - 36 in-lb (316 - 410 Ncm) | 34 - 44 in-lb (381 - 495 Ncm) | 19 - 25 in-lb (219 - 285 Ncm) |
| M5 | 17 - 22 in-lb (193 - 250 Ncm) | 39 - 51 in-lb (443 - 575 Ncm) | 55 - 72 in-lb (624 - 810 Ncm) | 66 - 86 in-lb (747 - 970 Ncm) | 38 - 49 in-lb (427 - 554 Ncm) |
| M6 | 29 - 38 in-lb (3.3 - 4.3 Nm) | 67 - 88 in-lb (7.6 - 9.9 Nm) | 8.0 - 10.3 ft-lb (10.8 - 14 Nm) | 9.4 - 12.2 ft-lb (12.7 - 16.5 Nm) | 66 - 87 in-lb (7.5 - 9.8 Nm) |
| M8 | 72 - 93 in-lb (8.1 - 10.5 Nm) | 13.6 - 17.7 ft-lb (18.5 - 24 Nm) | 19.3 - 25 ft-lb (26.2 - 34 Nm) | 23 - 30 ft-lb (31 - 40 Nm) | 13.5 - 17.5 ft-lb (18.3 - 23.7 Nm) |
| M10 | 11.8 - 15.5 ft-lb (16 - 21 Nm) | 27 - 35 ft-lb (37 - 48 Nm) | 38 - 49 ft-lb (52 - 67 Nm) | 46 - 60 ft-lb (63 - 81 Nm) | |
| M12 | 21 - 27 ft-lb (28 - 36 Nm) | 47 - 61 ft-lb (64 - 83 Nm) | 66 - 86 ft-lb (90 - 117 Nm) | 80 - 103 ft-lb (108 - 140 Nm) | |
| M14 | 33 - 43 ft-lb (45 - 58 Nm) | 75 - 97 ft-lb (102 - 132 Nm) | 105 - 136 ft-lb (142 - 185 Nm) | 125 - 162 ft-lb (169 - 220 Nm) | |
| M16 | 50 - 65 ft-lb (68 - 88 Nm) | 114 - 148 ft-lb (154 - 200 Nm) | 162 - 210 ft-lb (219 - 285 Nm) | 193 - 251 ft-lb (262 - 340 Nm) | |
| M20 | 97 - 126 ft-lb (132 - 171 Nm) | 221 - 288 ft-lb (300 - 390 Nm) | 313 - 406 ft-lb (424 - 550 Nm) | 375 - 487 ft-lb (508 - 660 Nm) | |
| M22 | 131 - 170 ft-lb (177 - 230 Nm) | 302 - 391 ft-lb (409 - 530 Nm) | 423 - 549 ft-lb (574 - 745 Nm) | 506 - 656 ft-lb (686 - 890 Nm) | |
| M24 | 167 - 218 ft-lb (227 - 295 Nm) | 384 - 498 ft-lb (520 - 675 Nm) | 540 - 701 ft-lb (732 - 950 Nm) | 648 - 841 ft-lb (879 - 1140 Nm) |
The manual prints metric torque only. The imperial values first in each cell are converted from the metric values.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 16, used with permission. SES ref PF-Q6RA-DSFO
SS500 9015517 (01-2018)Page 16 of 128
GENERAL INFORMATION
General machine dimensions/capacities/performance (North America / Intl)
In shortThe Speed Scrub 500 is a 24 VDC walk-behind with a 22.5 gal (85 L) solution tank and a 27 gal (102 L) recovery tank. Dual disk models are listed here; the next page continues the list.
| Model | 26 in (650 mm) Dual Disk | 28 in (700 mm) Dual Disk | 32 in (800 mm) Dual Disk |
|---|---|---|---|
| Length | 58.5 in (1486 mm) | 59.1 in (1501 mm) | 61.1 in (1552 mm) |
| Width | 27.5 in (700 mm) | 29.5 in (750 mm) | 33.5 in (850 mm) |
| Height | 43.3 in (1100 mm) | 43.3 in (1100 mm) | 43.3 in (1100 mm) |
| Weight | 320 lb (145 kg) | 330 lb (150 kg) | 355 lb (161 kg) |
| Weight (with batteries) | 610 lb (277 kg) | 620 lb (281 kg) | 645 lb (293 kg) |
| GVW | 800 lb (363 kg) | 810 lb (367 kg) | 835 lb (379 kg) |
| Squeegee width | 38.3 in (973 mm) | 41.3 in (1049 mm) | 46.6 in (1234 mm) |
| Solution tank capacity | 22.5 gal (85 L) | ||
| Recovery tank capacity | 27 gal (102 L) | ||
| Automatic battery watering tank capacity | 0.66 gal (2.5 L) | ||
| Scrubbing path width | 26 in (650 mm) | 28 in (700 mm) | 32 in (800 mm) |
| Down pressure | Low: 65 lb (29.5 kg), High: 120 lb (54.5 kg) | Low: 70 lb (32 kg), High: 120 lb (54.5 kg) | Low: 75 lb (34 kg), High: 120 lb (54.5 kg) |
| Scrubbing speed | 2.5 mph (4.0 km/h), 220 fpm (67 mpm) | ||
| Transport speed | 2.7 mph (4.4 km/h), 240 fpm (73 mpm) | ||
| Reverse speed | 1.6 mph (2.6 km/h), 144 fpm (44 mpm) | ||
| Productivity rate - estimated actual | 20,571 ft²/hr (1911 m²/hr) | 22,286 ft²/hr (2070 m²/hr) | 25,714 ft²/hr (2389 m²/hr) |
| ec-H2O productivity rate - est. actual | 23,124 ft²/hr (2148 m²/hr) | 23,680 ft²/hr (2200 m²/hr) | 27,323 ft²/hr (2538 m²/hr) |
| Aisle turnaround width | 59 in (1499 mm) | 59.6 in (1514 mm) | 61.6 in (1565 mm) |
| Maximum operating gradient | 2% | ||
| Solution flow rate | Low: 0.30 gpm (1.1 L/min), Med: 0.40 gpm (1.5 L/min), High: 0.50 gpm (1.9 L/min) | ||
| ec-H2O solution flow rate | Low: 0.15 gpm (0.57 L/min), Med: 0.22 gpm (0.84 L/min), High: 0.30 gpm (1.14 L/min) | Low: 0.22 gpm (0.84 L/min), Med: 0.33 gpm (1.25 L/min), High: 0.44 gpm (1.67 L/min) | Low: 0.22 gpm (0.84 L/min), Med: 0.33 gpm (1.25 L/min), High: 0.44 gpm (1.67 L/min) |
| Brush motor | 2-24 VDC, 0.75 hp (0.55 kW), 29 A, 220 rpm | ||
| Propel motor | 24 VDC, 0.63 hp (0.48 kW), 20A | ||
| Vacuum motor | 24 VDC, 0.46 hp (.34 kW), 14.3 A | ||
| Water lift | 34 in (864 mm) | ||
| ec-H2O solution pump | 24 VDC, 2 A, 1.0 gpm (3.8 L/min), min open flow | ||
| Automatic battery watering pump | 12 VDC, 1.8 A, 0.37 gpm (1.4 L/min), min open flow | ||
| Machine voltage | 24 VDC | ||
| Battery capacity | 4-6V 225AH C/20 Wet, 4-6V 260AH C/20 Wet, 4-6V 220AH C/20 AGM | ||
| Total power consumption | 66 A nominal / 1.6 kW | ||
| Battery Charger - on-board | 115-240VAC, 50/60Hz, 24VDC, 25A | ||
| Battery Charger - smart off-board | 85-265VAC, 50/60Hz, 24VDC, 25A | ||
| Protection grade | IPX3 | ||
| Sound pressure level LpA* | 67.4 dB(A) | 67.4 dB(A) | 67.4 dB(A) |
| Sound uncertainty KpA* | 0.8 dB(A) | 0.8 dB(A) | 0.8 dB(A) |
| Sound power level uncertainty LpA - uncertainty KpA* | 83.1 dB(A) | 83.1 dB(A) | 83.1 dB(A) |
| Machine vibration at hand-arm* | <2.5 m/s² (<8.2 ft/s²) | ||
| Ambient operating temperature | Min: 36 °F (2 °C), Max: 110 °F (43 °C) | ||
*Values per IEC 60335-2-72. Specifications are subject to change without notice.
Corrected an obvious misprint: reverse speed printed as "11.6 mph" (now 1.6 mph, from the 2.6 km/h and 144 fpm printed beside it).
Corrected an obvious misprint: 32 in model low down pressure printed as "-75 lbs" (now 75 lb, matching the 34 kg printed beside it).
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 17, used with permission. SES ref PF-BRVZ-D3FY
SS500 9015517 (01-2018)Page 17 of 128
GENERAL INFORMATION
General machine dimensions/capacities/performance - North America / Intl (continued)
In shortThis page lists the cylindrical brush and orbital models. Both have a 28 in (700 mm) scrubbing path.
| Model | 28 in (700 mm) Cylindrical Brush | 28 in (700 mm) Orbital |
|---|---|---|
| Length | 59.1 in (1501 mm) | 58.5 in (1486 mm) |
| Width | 30.7 in (780 mm) | 28 in (710 mm) |
| Height | 43.3 in (1100 mm) | 43.3 in (1100 mm) |
| Weight | 370 lb (168 kg) | 370 lb (168 kg) |
| Weight (with batteries) | 660 lb (299 kg) | 660 lb (299 kg) |
| GVW | 850 lb (386 kg) | 850 lb (386 kg) |
| Squeegee width | 46.6 in (1234 mm) | 41.3 in (1049 mm) |
| Solution tank capacity | 22.5 gal (85 L) | |
| Recovery tank capacity | 27 gal (102 L) | |
| Automatic battery watering tank capacity | 0.66 gal (2.5 L) | |
| Scrubbing path width | 28 in (700 mm) | |
| Down pressure | Low: 85 lb (38.5 kg) High: 120 lb (54.5 kg) | Low: 110 lb (50 kg) High: 170 lb (77 kg) |
| Scrubbing speed | 2.5 mph (4.0 km/h), 220 fpm (67 mpm) | |
| Transport speed | 2.7 mph (4.4 km/h), 240 fpm (73 mpm) | |
| Reverse speed | 1.6 mph (2.6 km/h), 144 fpm (44 mpm) | |
| Productivity rate - estimated actual | 22,286 ft²/hr (2070 m²/hr) | 20,260 ft²/hr (1882 m²/hr) |
| ec-H2O productivity rate - est. actual | 23,680 ft²/hr (2200 m²/hr) | 21,527 ft²/hr (2000 m²/hr) |
| Aisle turnaround width | 59.6 in (1514 mm) | 59 in (1499 mm) |
| Maximum operating gradient | 2% | |
| Solution flow rate | Low: 0.30 gpm (1.1 L/min), Med: 0.40 gpm (1.5 L/min), High: 0.50 gpm (1.9 L/min) | |
| ec-H2O solution flow rate | Low: 0.22 gpm (0.84 L/min), Med: 0.33 gpm (1.25 L/min), High: 0.44 gpm (1.67 L/min) | |
| Brush motor | 2-24 VDC, 0.63 hp (0.47 kW), 23 A, 1500 rpm | 24 VDC, 0.75 hp (0.55 kW), 28 A, 2200 rpm |
| Propel motor | 24 VDC, 0.63 hp (0.48 kW), 20A | |
| Vacuum motor | 24 VDC, 0.46 hp (.34 kW), 14.3 A | |
| Water lift | 34 in (864 mm) | |
| ec-H2O solution pump | 24 VDC, 2 A, 1.0 gpm (3.8 L/min), min open flow | |
| Automatic battery watering pump | 12 VDC, 1.8 A, 0.37 gpm (1.4 L/min), min open flow | |
| Machine voltage | 24 VDC | |
| Battery capacity | 4-6V 225AH C/20 Wet, 4-6V 260AH C/20 Wet, 4-6V 220AH C/20 AGM | |
| Total power consumption | 66 A nominal / 1.6 kW | |
| Battery Charger - on-board | 115-240VAC, 50/60Hz, 24VDC, 25A | |
| Battery Charger - smart off-board | 85-265VAC, 50/60Hz, 24VDC, 25A | |
| Protection grade | IPX3 | |
| Sound pressure level LpA* | 68.3 dB(A) | 66.9 dB(A) |
| Sound uncertainty KpA* | 0.8 dB(A) | 0.8 dB(A) |
| Sound power level uncertainty LpA - uncertainty KpA* | 84.3 dB(A) | 83.4 dB(A) |
| Machine vibration at hand-arm* | <2.5 m/s² (<8.2 ft/s²) | |
| Ambient operating temperature | Min: 36 °F (2 °C), Max: 110 °F (43 °C) | |
*Values per IEC 60335-2-72. Specifications are subject to change without notice.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 18, used with permission. SES ref PF-MLT3-JSSC
SS500 9015517 (01-2018)Page 18 of 128
GENERAL INFORMATION
Machine dimensions
Dual disk model
- Width: 28 in (700 mm) on the 26 in (650 mm) model, 29.5 in (750 mm) on the 28 in (700 mm) model, 32 in (800 mm) on the 32 in (800 mm) model
- Length: 58.5 in (1486 mm) on the 26 in (650 mm) model, 59.1 in (1501 mm) on the 28 in (700 mm) model, 61.1 in (1552 mm) on the 32 in (800 mm) model
- Height: 43.3 in (1100 mm)
- Squeegee width: 38.3 in (973 mm) on the 26 in (650 mm) model, 41.3 in (1049 mm) on the 28 in (700 mm) model, 46.6 in (1234 mm) on the 32 in (800 mm) model
Corrected an obvious misprint: the drawing prints the 26 in model squeegee width as "38.3 in / 937 mm" (now 973 mm, as on page 17). The drawing also labels the width callouts "26 in / 700 mm Model" and "26 in / 800 mm Model"; these are the 28 in (700 mm) and 32 in (800 mm) models, as listed above.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 19, used with permission. SES ref PF-TYTP-IWIO
SS500 9015517 (01-2018)Page 19 of 128
GENERAL INFORMATION
Cylindrical brush model
- Width: 30.7 in (780 mm)
- Length: 59.1 in (1501 mm)
- Height: 43.3 in (1100 mm)
- Squeegee width: 46.6 in (1234 mm)
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 20, used with permission. SES ref PF-REMM-6BFQ
SS500 9015517 (01-2018)Page 20 of 128
GENERAL INFORMATION
Orbital pad model
- Width: 28 in (710 mm)
- Length: 58.5 in (1486 mm)
- Height: 43.3 in (1100 mm)
- Squeegee width: 41.3 in (1049 mm)
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 21, used with permission. SES ref PF-JHR5-2MMO
SS500 9015517 (01-2018)Page 21 of 128
MAINTENANCE
Maintenance chart
In shortOperators handle the daily, weekly, 50-hour, 100-hour and 200-hour checks. Trained personnel replace motor carbon brushes at 750 and 1250 hours and the brush belt at 1250 hours. Each Key number matches the callout in the drawing.
The table below indicates the Person Responsible for each procedure.
O = Operator T = Trained Personnel
| Interval | Person Resp. | Key | Description | Procedure |
|---|---|---|---|---|
| Daily | O | 1 | Pads Parts › | Check, flip, or replace |
| O | 1 | Brushes Parts › | Check, clean | |
| O | 2 | Cylindrical brushes Parts › | Check, clean | |
| O | 3 | Recovery tank | Drain, rinse, clean float shut-off screen and debris tray | |
| O | 4 | Solution tank | Drain, rinse | |
| O | 5 | Automatic battery watering tank (option) | Check, refill | |
| O | 6 | Squeegee Parts › | Clean, check for damage and wear | |
| O | 7 | Batteries | Charge if necessary | |
| O | 8 | Debris trough | Clean | |
| O | 9 | Scrub head skirt | Check for damage and wear | |
| Weekly | O | 7 | Battery cells | Check electrolyte level |
| O | 6 | Squeegee assembly drip trap reservoir | Check, clean | |
| 50 Hours | O | 2 | Cylindrical brushes | Rotate brushes. Check for wear |
| O | 2 | Cylindrical scrub head | Clean underside of scrub head | |
| O | 3 | Recovery tank lid seal | Check for wear. | |
| O | 10 | Solution tank filter | Remove and clean | |
| 100 Hours | O | 7 | Battery watering system (option) | Check hoses for damage and wear |
| 200 Hours | O | 7 | Batteries, terminals and cables | Check and clean |
| 750 Hours | T | 11 | Vacuum motor | Replace carbon brushes |
| 1250 Hours | T | 12 | Propel motor | Replace carbon brushes |
| T | 13 | Brush motor Parts › | Replace carbon brushes | |
| T | 14 | Brush belt Parts › | Replace belt |
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 22, used with permission. SES ref PF-3LTT-PAUS
SS500 9015517 (01-2018)Page 22 of 128
MAINTENANCE
Machine maintenance
In shortYellow touch points mark the service items that need no tools. The daily list starts here: drain and rinse the tanks, clean the float shut-off screen and check the pads or brushes.
To keep the machine in good working condition, simply perform the following maintenance procedures.
FOR SAFETY: Before leaving or servicing machine, stop on level surface, turn off machine, remove key, and set parking brake if equipped.
FOR SAFETY: When servicing machine wear personal protection equipment as needed. All repairs must be performed by trained personnel
Yellow touch points
This machine features easy to find yellow touch points for simple service items. No tools are required to perform these maintenance operations.
After daily use
- Drain and rinse out the recovery tank.
- Remove and clean the float shut-off screen.
- Drain and rinse out the solution tank.
- Disk scrub head - Turn pad over or replace when worn
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 23, used with permission. SES ref PF-W4D4-IIML
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- Replace brushes when they no longer clean effectively or when the bristles are worn to the yellow indicator
Orbital scrub head - Turn the working pad over or replace when worn
- Wipe the squeegee blades clean. Inspect blades for wear and damage. Rotate blade if worn. See SQUEEGEE BLADE REPLACEMENT.
- Clean scrub head skirt. Check for wear or damage. Replace if worn or damaged
- Clean the outside surface of the machine with an all purpose cleaner and damp cloth.
FOR SAFETY: When servicing machine, do not power spray or hose off machine. Electrical malfunction may occur. Use damp cloth.
- Cylindrical brush scrub head - Remove and clean debris trough.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 24, used with permission. SES ref PF-FQ5M-ZQHS
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MAINTENANCE
- Automatic battery watering option - Refill tank with distilled water. Replace cap.
- Charge batteries. See BATTERIES.
ATTENTION: Do not disconnect battery cables while charger is plugged in, circuit board damage may result.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 25, used with permission. SES ref PF-RLC7-LAX6
SS500 9015517 (01-2018)Page 25 of 128
MAINTENANCE
After weekly use
- Check the electrolyte level in all batteries. See BATTERIES.
NOTE: If machine is equipped with the automatic or manual battery watering system, See BATTERIES.
- Remove the drip trap cover from the squeegee assembly and clean reservoir.
After every 50 hours of use
- Drain solution tank. Remove the solution tank filter and clean screen (Figure 109). Turn the filter bowl counter-clockwise to remove.
- Cylindrical brushes - Rotate brushes from front to rear. Replace brushes when they no longer clean effectively.
- Cylindrical scrub head - Remove debris buildup from underside of scrub head, including the idler plates and drive hubs
After every 100 hours of use
If machine is equipped with the optional battery watering system, check hoses for leaks, loose hose connections and for damage or wear. Replace system if damaged.
FOR SAFETY: When servicing batteries, wear personal protection equipment as needed. Avoid contact with battery acid.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 26, used with permission. SES ref PF-COGN-EWJT
SS500 9015517 (01-2018)Page 26 of 128
MAINTENANCE
Electric motors
In shortMotor carbon brushes are replaced by trained personnel: at 750 hours for the vacuum motor and at 1250 hours for the propel and scrub head motors. Cylindrical model belts are replaced every 1250 hours. Call us at 800-440-6723 for service.
Replace motor carbon brushes as indicated. Contact trained personnel for carbon brush replacement.
| Carbon Brush Replacement | Hours |
|---|---|
| Vacuum motor | 750 |
| Propel motor | 1250 |
| Disk brush motors | 1250 |
| Cylindrical brush motors | 1250 |
| Orbital brush motor | 1250 |
Belts (cylindrical brush model)
FOR SAFETY: Before leaving or servicing machine, stop on level surface, turn off machine, remove key and set parking brake if equipped.
Replace belts every 1250 hours. Contact trained personnel for belt replacement.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 27, used with permission. SES ref PF-4TQH-RXGV
SS500 9015517 (01-2018)Page 27 of 128
MAINTENANCE
Batteries
In shortCharge no more than once a day, and only after at least 15 minutes of running. Check the electrolyte in wet batteries weekly and add only distilled water. Sealed AGM batteries do not need watering. After every 200 hours, check connections and clean the batteries.
FOR SAFETY: Before servicing machine, stop on level surface, turn off machine, remove key and set parking brake if equipped.
The lifetime of the batteries depends on their proper maintenance. To get the most life from the batteries;
- Do not charge the batteries more than once a day and only after running the machine for a minimum of 15 minutes.
- Do not leave the batteries partially discharged for long period of time.
- Only charge the batteries in a well-ventilated area to prevent gas build up. Charge batteries in areas with ambient temperatures 80 °F (27 °C) or less.
- Allow the charger to complete charging the batteries before re-using the machine.
- Maintain the proper electrolyte levels of flooded (wet) batteries by checking levels weekly.
This machine is equipped with either flooded (wet) lead-acid or maintenance-free (Sealed AGM) batteries supplied by Tennant.
FOR SAFETY: When servicing machine, keep all metal objects off batteries. Avoid contact with battery acid.
Maintenance-free batteries
Maintenance-free (Sealed AGM) batteries do not require watering. Cleaning and other routine maintenance is still required.
Flooded (wet) lead-acid batteries
The flooded (wet) lead-acid batteries require routine watering as described below. Check the battery electrolyte level weekly.
NOTE: If machine is equipped with the automatic or manual battery watering system, proceed to the BATTERY WATERING SYSTEM instructions.
The electrolyte level should be slightly above the battery plates as shown before charging. Add distilled water if low. DO NOT OVERFILL. The electrolyte will expand and may overflow when charging. After charging, distilled water can be added up to about 0.12 in (3 mm) below the sight tubes.
NOTE: Make sure the battery caps are in place while charging. There may be a sulfur smell after charging batteries. This is normal.
Checking connections / cleaning
After every 200 hours of use, check for loose battery connections and clean the surface of the batteries, including terminals and cable clamps to prevent battery corrosion. Use a scrub brush with a strong mixture of baking soda and water. Do not remove battery caps when cleaning batteries.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 28, used with permission. SES ref PF-PZH6-REHG
SS500 9015517 (01-2018)Page 28 of 128
MAINTENANCE
Charging batteries
In shortOnly charge with the charger supplied with the machine, in a well-ventilated area, with the machine parked and off. The charger shuts off by itself. Never disconnect the battery cables or an off-board charger's DC cord while the charger is running.
The charging instructions in this manual are intended for the battery charger supplied with your machine. The use of other battery chargers that are not supplied and approved by Tennant are prohibited.
If machine is equipped with an off-board battery charger refer to the charger’s owners manual for operating instructions. Contact distributor or Tennant for battery charger recommendations if machine is not equipped with charger.
FOR SAFETY: The use of incompatible battery chargers may damage battery packs and potentially cause a fire hazard.
IRIS® Battery Charging Metrics Notification: Machines equipped with capability to report battery charging data via IRIS are supplied with a charger and set of batteries from the factory. When a battery reaches its end of life and must be replaced, Tennant highly recommends that the same battery type be used to continue to maximize the machines performance. In the event a battery with a different amp hour (AH), type (Flooded, AGM, Gel), or manufacturer is selected for replacement please contact Tennant technical service department for assistance in determining the feasibility of the replacement batteries and if so, selecting the correct charging profile. Availability of IRIS battery metric reporting is not guaranteed with third party supplied batteries.
IMPORTANT NOTICE: The battery charger is set to charge the battery type supplied with the machine. If it is necessary to change to a different battery type or capacity (i.e. flooded (wet) lead-acid, maintenance-free, sealed, AGM batteries, etc...), the charger charging profile must be changed to prevent battery damage. See BATTERY CHARGER SETTINGS.
- Transport the machine to a well-ventilated area.
WARNING: Batteries emit hydrogen gas. Explosion or fire can result. Keep sparks and open flame away when charging.
- Park the machine on a flat, dry surface, turn off machine and remove key.
FOR SAFETY: When servicing batteries, stop on level surface, turn off machine, remove key and set parking brake if equipped.
- If the machine is equipped with flooded (wet) lead-acid batteries check the battery electrolyte level weekly before charging. For models equipped with the automatic battery watering system, check if the automatic battery water tank needs refilling. Add distilled water if low.
- For models equipped with an on-board charger, remove the charger’s power cord from the storage hooks and plug power cord into a properly grounded wall outlet.
For models equipped with off-board chargers, first connect the charger’s DC cord into the machine’s battery charge receptacle then plug the AC power supply cord into a properly grounded wall outlet. Refer to the off-board battery charger’s owner manual for operating instructions.
FOR SAFETY: Do not disconnect the off-board charger’s DC cord from the machine’s receptacle when the charger is operating. Arcing may result. If the charger must be interrupted during charging, disconnect the AC power supply cord first.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 29, used with permission. SES ref PF-CWLL-NTDF
SS500 9015517 (01-2018)Page 29 of 128
MAINTENANCE
- The charger will automatically begin charging and shut off when fully charged. The maximum charging cycle may take up to 6-12 hours depending on battery type.
On-board battery charger: The battery discharge indicator lights will ripple back and forth during the charging cycle. When all five lights repeatedly flash two times, the charging cycle is complete.
ATTENTION: Do not disconnect battery cables while charger is plugged in, circuit board damage may result.
- After charging batteries unplug the power supply cord and wrap cord around the cord hooks.
For models equipped with an off-board charger, always disconnect the AC power supply cord first before disconnecting charger from machine
Battery charger settings
In shortThe charger and the machine's battery discharge indicator (BDI) are set for the battery type supplied with the machine. If you change battery type or capacity, both must be changed to match. Call service for the software method, or see page 31 for the manual dial method on the on-board charger.
The battery charger is set to charge the battery type supplied with your machine. If you choose to change to a different battery type or capacity, the charger’s charging profile must be changed to prevent battery damage.
The machine’s battery discharge indicator (BDI) must also be reprogrammed to match battery type to prevent battery damage and/or short run-time.
NOTE: For machines shipped without batteries, the battery discharge indicator and the on-board battery charger are set for GEL batteries as the default. If you choose to use a different battery type, the settings must be changed as described as below.
NOTE: For Pro-Membrane models shipped without batteries and an Off-Board Charger, the off-board battery charger is set for wet lead-acid batteries from the factory. The machine’s battery discharge indicator is set for GEL batteries as the default. The battery discharge indicator must be reprogrammed to match charger settings, contact service.
IRIS MODELS: For models equipped with capability to report battery charging data via IRIS, Tennant recommends using the same battery type. If a different amp hour or battery type is desired, Call Tennant Technical Support to report new battery type.
Off-board battery charger
To change the off-board battery charger settings, refer to the off-board charger’s owner manual.
To reprogram the machine’s battery discharge indicator (BDI), service application software is required, contact service.
On-board battery charger
To change the on-board battery charger settings, service application software required, contact service.
As an alternative, the charger profile may be manually changed. See CHANGING ON-BOARD BATTERY CHARGER SETTINGS. The battery discharge indicator will automatically reprogram to match battery type when the battery charger profile is changed.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 30, used with permission. SES ref PF-BLZJ-OYOZ
SS500 9015517 (01-2018)Page 30 of 128
MAINTENANCE
Changing on-board battery charger settings
In shortThis is the manual way to match the on-board charger to a different battery type: peel back the charger label and turn the dial to the right position in the chart. Do not set the dial back to 0 afterward. Only service software can do that.
To manually change the on-board battery charger settings for a different battery type, carefully follow instructions as described below
NOTE: The manual method is only an alternative if unable to change setting by use of the Service Application Software performed by Service.
- Disconnect the battery cable connection at machine.
FOR SAFETY: When servicing machine, stop on level surface, turn off machine, remove key, and set parking brake if equipped.
- Carefully peel back the charger display label to access the dial settings.
- Using a small standard screwdriver, turn the dial to the appropriate battery type according to the following chart.
| Dial Position | Battery Description Settings with AH Ranges |
|---|---|
| 0 | CAN-BUS setting* |
| 1 | Wet, Trojan 180-260 AH |
| 2 | Wet, Trojan 270-360 AH |
| 3 | Wet, Enersys/Tab 200-350 AH |
| 4 | AGM, Tianneng 180-260 AH |
| 5 | AGM, Discover 200-350 AH |
| 6 | Gel, Sonnenschein 80-150 AH |
* The CAN-BUS setting, dial position “0”, is the software setting that is programmed to match battery type supplied with machine. When the dial is manually changed to a different setting, it should not be reset back to “0” otherwise battery damage may result. Service Application Software is required to reset dial back to “0”. Contact Service.
- Re-apply the display label.
- To set the BDI for the new battery type, plug the on-board battery charger cord into an electrical outlet. The machine’s software will automatically reprogram the BDI to the new battery type.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 31, used with permission. SES ref PF-TOTK-GXRV
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MAINTENANCE
HydroLINK® battery watering system (Trojan® battery option)
In shortCharge the batteries fully first, then check the white or black level indicators on the battery covers. If an indicator is white, pump in distilled water with the hand pump until the indicators turn black.
The following instructions are for models equipped with the HydroLink battery watering system option.
The optional HydroLink battery watering system provides a safe and easy way to maintain the proper electrolyte levels in your batteries. It is designed exclusively for Trojan flooded (wet) lead-acid batteries.
FOR SAFETY: When servicing machine, wear personal protection equipment as needed. Avoid contact with battery acid.
Before using the battery watering system check hoses and connections for damage or wear.
- Fully charge batteries prior to using the battery watering system. Do not add water to batteries before charging, the electrolyte level will expand and may overflow when charging.
- After charging batteries, check the battery electrolyte level indicators located on the battery covers. If the level indicator is white add water as described in the following instructions. If the level indicators are black the electrolyte is at the correct level, no water is required.
- Locate the battery fill hose coupler inside the battery compartment. Remove the dust cap and connect the hand pump hose.
- Submerge the other end of the hand pump hose into a bottle of distilled water
- Squeeze the bulb on the hand pump hose until firm. The level indicators will turn black when full.
- After adding water, replace the dust cap on the battery fill hose and store the hand pump hose inside the machine’s battery compartment for future use.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 32, used with permission. SES ref PF-O4E4-RQTX
SS500 9015517 (01-2018)Page 32 of 128
MAINTENANCE
Automatic battery watering system (Trojan® battery option)
In shortThis system refills the batteries by itself after a set number of charge cycles. Do not add water to the batteries by hand. Just keep the watering tank topped up with distilled water.
FOR SAFETY: Before leaving or servicing machine, stop on level surface, turn off machine, remove key and set parking brake if equipped.
The automatic battery watering system is designed to automatically refill the batteries after the machine reaches a limited number of charge cycles. Do not remove battery caps and manually add water to the batteries.
Check the automatic battery watering system for leaks, loose hose connections and for damage or wear. Replace if damaged.
Check the water level in the automatic watering tank periodically. Add distilled water when low.
FOR SAFETY: When servicing machine, only use distilled water when filling the automatic battery watering tank.
The automatic battery watering indicator will also alert user to add distilled water when tank is empty. See OPERATOR MANUAL for further details.
To store machine equipped with the automatic battery watering system in freezing temperatures, see STORING MACHINE/FREEZE PROTECTION (page 37).
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 33, used with permission. SES ref PF-KAQD-I3YQ
SS500 9015517 (01-2018)Page 33 of 128
MAINTENANCE
Squeegee blade replacement
In shortEach blade has four wiping edges. Rotate the blade end for end or top to bottom before you replace it. Replace the blade when all four edges are worn. Parts ›
FOR SAFETY: Before leaving or servicing machine, stop on level surface, turn off machine, remove key and set parking brake if equipped.
Each squeegee blade has four wiping edges. When the blades become worn, simply rotate the blades end-for-end or top-to-bottom for a new wiping edge. Replace blade if all four edges are worn.
- Remove the squeegee assembly from the machine.
- Fully loosen the two outside knobs on squeegee assembly. This will separate the spring loaded blade retainer from squeegee frame. To loosen the knobs quickly, squeeze the blade retainer and squeegee frame together
- Remove worn blade(s) from the blade retainer.
- Rotate the rear blade to a new wiping edge and Reinstall blade. Make sure to align the slots in the blade with retainer tabs.
- Squeeze the squeegee frame and blade retainer together and re-tighten the two outside knobs.
Parts for this job
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 34, used with permission. SES ref PF-ABDR-W7PO
SS500 9015517 (01-2018)Page 34 of 128
MAINTENANCE
ec-H2O water conditioning cartridge replacement
In shortReplace the cartridge when the control panel signals a code. It lasts about 12 to 24 months depending on use. After the swap, reset the cartridge timer using the service switch and solution flow button on the ec-H2O module.
FOR SAFETY: Before leaving or servicing machine, stop on level surface, turn off machine, remove key and set parking brake if equipped.
The water conditioning cartridge is required to be replaced when it reaches its maximum water usage or expiration time of when the cartridge was activated, which ever comes first. The control panel will signal a code when it is time to replace cartridge. See CONTROL PANEL OPERATION for further details.
Depending on machine usage, on average, a new cartridge can last anywhere from 12 months for heavy machine usage to 24 months for light machine usage.
ATTENTION: During first time use and after replacing the water conditioning cartridge, the ec-H2O system will automatically override the selected solution flow rate for up to 75 minutes.
- Park the machine on a level surface, remove the key and set parking brake, if equipped.
- Lift the recovery tank to access the ec-H2O water conditioning cartridge. Drain recovery tank before lifting tank.
- Disconnect the two hose connectors from the top of the cartridge by pressing the gray collars inward and pulling the connectors outward. Lift cartridge to remove.
- Fill in the installation date on the new cartridge label.
- Install the new cartridge and reconnect the two hoses. Make sure the hose connectors are fully inserted into the cartridge.
- Reset timer for new cartridge
Carefully read and understand all steps first before performing procedure.
- Turn key on.
- Press and hold the service switch, located on the ec-H2O module, for 10 seconds. After releasing service switch, the three solution flow indicator lights will begin to (ripple) move back and forth.
- Within 5 seconds after releasing the service switch, while the three indicator lights are moving back and forth, quickly press and release the solution flow button located on ec-H2O module.
The three indicator lights will then blink three times to indicate timer has been reset. Repeat process if the three indicator lights do not blink three times.
Parts for this job
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 35, used with permission. SES ref PF-GHZZ-V44B
SS500 9015517 (01-2018)Page 35 of 128
MAINTENANCE
In shortJack the machine only at the designated locations, with the tanks empty and on a level surface. To haul it, drain the tanks, remove the squeegee, ramp it on, block the wheels and strap it down at the four tie-down brackets.
Machine jacking
FOR SAFETY: Before leaving or servicing machine, stop on level surface, turn off machine, remove key and set parking brake if equipped.
Use the designated locations to jack up the machine for service. Empty the recovery and solution tanks and position the machine on a level surface before jacking.
FOR SAFETY: When servicing machine, jack machine up at designated locations only. Support machine with jack stands. Use jack or hoist that will support the weight of the machine.
Transporting machine
When transporting the machine by use of trailer or truck, carefully follow loading and tie-down procedure.
- Drain tanks, raise the scrub head and the remove squeegee assembly.
- Carefully load machine in trailer or on truck.
FOR SAFETY: When loading/unloading, use a ramp that can support the machine weight and operator.
FOR SAFETY: When loading/unloading, the machine may only be operated on gradients up to 2%.
- Once loaded, position the front of the machine up against the front of the trailer or truck. Lower the scrub head, turn key off and set parking brake, if equipped.
- Place a block behind each wheel.
- Using tie-down straps, secure the machine using the four tie-down brackets located on the machine frame. It may be necessary to install tie-down brackets to the floor of your trailer or truck.
NOTE: When transporting machine in an open truck or trailer, secure recovery tank lid.
ATTENTION: Do not use control console area or accessory storage rails for tie-down locations, damage may occur.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 36, used with permission. SES ref PF-KVTV-7RUZ
SS500 9015517 (01-2018)Page 36 of 128
MAINTENANCE
Storing machine
In shortBefore long-term storage, charge and then disconnect the batteries, drain and rinse both tanks, and store the machine indoors with the squeegee and scrub head up. If it will see freezing temperatures, run RV antifreeze through the system as shown under Freeze protection. Never put antifreeze in the automatic battery watering tank.
The following steps should be taken when storing the machine for extended periods of time.
- Charge the batteries before storing machine to prolong the life of the batteries. Recharge batteries once a month.
- Disconnect batteries before storing.
- Drain and rinse recovery tank and solution tank.
- Store the machine in a dry area with squeegee and scrub head in the up position.
ATTENTION: Do not expose machine to rain, store indoors.
- Open the recovery tank lid to promote air circulation.
- If storing machine in freezing temperatures, proceed to FREEZE PROTECTION.
NOTE: To prevent potential machine damage store machine in a rodent and insect free environment
Freeze protection
Storing machine in freezing temperatures.
- Completely drain solution tank and recovery tank.
- Empty the water from the solution tank filter located under machine. Replace filter.
- Pour 1 gallon (4 liters) of propylene glycol based recreational vehicle (RV) antifreeze into the solution tank.
- Models not equipped with ec-H2O system - Turn machine on and operate the solution flow system. Turn the machine off when the antifreeze is visible on the floor.
Models equipped with ec-H2O system - Turn machine and set the solution flow rate on and operate ec-H2O scrubbing to cycle antifreeze through system. Turn machine off when antifreeze is visible on the floor. This may take up to two minutes.
- Models equipped with optional automatic battery watering tank - Lift tank from machine and empty the water from tank.
Drain remaining water from system by removing the drain hose cap located below the tank. Leave cap off tank when draining system. After draining, replace cap on drain hose.
IMPORTANT: DO NOT add antifreeze to the automatic battery watering tank.
- After storing machine in freezing temperatures, drain any remaining antifreeze from the solution tank. Add clean water to solution tank and to optional detergent tank and operate the machine to flush system.
- Refill the automatic battery watering tank with distilled water, if equipped.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 37, used with permission. SES ref PF-SZCX-REU5
SS500 9015517 (01-2018)Page 37 of 128
TROUBLESHOOTING
Faults and warnings
In shortWhen the machine or battery charger finds a fault, the service indicator flashes and the five battery discharge lights show a fault code. Match the flashing pattern or the code to the table below to find the cause and the fix. Call us at 800-440-6723 if you need service.
When the machine or battery charger detects a fault, the service indicator will flash. A fault code is provided to determine problem. Refer to the Faults and Warnings table for fault codes, conditions, reasons, and correction for the various fault codes.
Pro-Membrane control panel
= Flashing (BDI light) = not flashing
| BDI (Battery Discharge Indicator) | Fault Codes | Fault Condition | Reason | Correction |
|---|---|---|---|---|
| 0xFFF0# | E-Stop activate fault | 1. E-Stop pressed. 2. Large white i-Drive connector unplugged. 3. Large white i-Drive connector pin 7 disconnected. 4. i-Drive power wire unplugged. | Release E-Stop button and power cycle machine. If that does not clear fault, check connections/wiring. | |
| 0x0206# | Actuator Shorted Fault | 1. Actuator relays connections shorted. 2. Faulty actuator relays. | Check connections. Check actuator relays. | |
| 0x0307# | Valve Open Load or FET Short Fault | 1. Control board issue with User Interface board. 2. Harness problem between User Interface board and valve. 3. Valve is defective. | 1. Check for continuity from User Interface board pin (J10 pin 6) and scrub motor relay. If there is no continuity, harness needs repair/replacement. 2. Replace valve if defective. 3. Replace User Interface board if defective. | |
| 0x0306# | Valve Shorted Fault | 1. Valve connections shorted. 2. Faulty valve. | Check connections. Check valve. | |
| 0x0107# | Scrub Motor Relay Open Load or FET Short Fault | 1. Control board issue with User Interface board. 2. Harness problem between User Interface board and scrub motor relay. 3. Scrub motor relay is defective. | 1. Check for continuity from User Interface board pin (J7 pin 7) and scrub motor relay. If there is no continuity, harness needs repair/replacement. 2. Replace relay if defective. 3. Replace User interface board if defective. |
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 38, used with permission. SES ref PF-NO7P-MSUY
SS500 9015517 (01-2018)Page 38 of 128
TROUBLESHOOTING
= Flashing (BDI light) = not flashing
| BDI (Battery Discharge Indicator) | Fault Codes | Fault Condition | Reason | Correction |
|---|---|---|---|---|
| 0x0207# | Actuator Relays Open Load or FET Short Fault | 1. Control board issue with User Interface board. 2. Harness problem between User Interface board and actuator relays. 3. Actuator relay(s) is/are defective. | 1. Check for continuity from User Interface board pins (J7 pins 5 and 6) and actuator relays. If there is no continuity, harness needs repair/replacement. 2. Replace relays if defective. 3. Replace User interface board if defective. | |
| 0x0901# | Propel Motor Open Warning | 1. Motor on propel i-Drive is not connected. | Check motor, connectors, and relevant wiring to controller. If trip is still present after motor, connectors, and wiring have been checked, controller may be defective. Replace defective controller. | |
| 0x0900# | Propel Generic Fault | 1. Generic i-Drive Fault 2. Large white i-Drive connector pin 2, 8, or 9 disconnected. 3. User Interface speed pot connector disconnected. | Power cycle machine. Check connections. | |
| 0x0903# | Propel Communication Lost Warning | 1. Large white i-Drive connector pin 5 disconnected. 2. Small white i-Drive connector disconnected. 3. Small white i-Drive connector pin 3 or 4 disconnected. 4. Smaller of two console connectors disconnected. 5. User Interface board connector J4 or J9 disconnected. | Power cycle machine. Check connections. | |
| 0x0904# | Propel Power Cycle Needed | 1. i-Drive just programmed with new parameters. Power cycle to clear. 2. i-Drive unit is faulty. | Power cycle machine. Replace faulty i-Drive. | |
| 0x0905# | Propel Current Limit Fault | Controller detects motor is drawing excessive current | Check motor, connectors, and relevant wiring to controller. If trip is still present after motor, connectors, and wiring have been checked, the controller may be defective. Replace defective controller. | |
| 0x0906# | Propel Motor Short Low Fault | Controller detects motor wiring is shorted to battery negative (-). | Check motor, connectors, and relevant wiring to controller. If trip is still present after motor, connectors, and wiring have been checked, the controller may be defective. Replace defective controller. | |
| 0x0907# | Propel Motor Short High Fault | Controller detects motor wiring is shorted to battery positive (+). | Check motor, connectors, and relevant wiring to controller. If trip is still present after motor, connectors, and wiring have been checked, the controller may be defective. Replace defective controller. | |
| 0x0908# | Propel RAM Check Error | General i-Drive fault. | Cycle machine power. If problem persists, replace i-Drive. |
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 39, used with permission. SES ref PF-ZK6U-SUDS
SS500 9015517 (01-2018)Page 39 of 128
TROUBLESHOOTING
= Flashing (BDI light) = not flashing
| BDI (Battery Discharge Indicator) | Fault Codes | Fault Condition | Reason | Correction |
|---|---|---|---|---|
| 0x0909# | Propel Data Check Error | General i-Drive fault. | Cycle machine power. If problem persists, replace i-Drive. | |
| 0x090A# | Propel Tiller Low Reference | Controller detects Throttle Low Reference is outside of normal range. Throttle Low Reference is located on pin 8 of 14-way Tiller Connector. | Check throttle potentiometer, connectors, and relevant wiring to controller. If trip is still present after potentiometer, connectors, and wiring have been checked, controller may be defective. Replace defective controller. | |
| 0x090B# | Propel Gone to Sleep | Controller enters Sleep Mode. | Turn controller off and then on to wake system. To disable Sleep Mode, program parameter Sleep Timer to 0 minutes. | |
| 0x090C# | Propel EEPROM Write Error | General i-Drive fault. | Cycle machine power. If problem persists, replace i-Drive. | |
| 0x090D# | Propel EEPROM Write Time Out | General i-Drive fault. | Cycle machine power. If problem persists, replace i-Drive. | |
| 0x090E# | Propel EEPROM Busy at Startup | General i-Drive fault. | Cycle machine power. If problem persists, replace i-Drive. | |
| 0x090F# | Propel EEPROM Address Range | General i-Drive fault. | Cycle machine power. If problem persists, replace i-Drive. | |
| 0x0910# | Propel Breaker Tripped Fault | 1. Issue with propel motor, wiring or i-Drive module. 2. Large white i-Drive connector disconnected. 3. Large white iDrive connector pin 7 disconnected. 4. i-Drive power wire disconnected. | Disconnect battery and reset circuit breaker. Check connections. | |
| 0x0911# | Propel Forward ISO Test Fail | Controller detects Series Speed Limit Potentiometer Wiper is shorted to throttle reference(s), either high or low. Series Speed Limit Potentiometer Wiper input is located on pin 1 of 14-way Tiller Connector. | Trip is only applicable if an ISO-test resistor is fitted and programmed correctly. Check throttle potentiometer, programming, connectors, and relevant wiring to controller. If trip is still present after potentiometer, programming, connectors, and wiring have been checked, controller may be defective. Replace defective controller. | |
| 0x0912# | Propel Forward Input Range | Controller detects an error with Throttle Wiper. Throttle Wiper input is located on pin 1 of 14-way Tiller Connector. | Check throttle potentiometer, programming, connectors, and relevant wiring to controller. If trip is still present after potentiometer, programming, connectors, and wiring have been checked, controller may be defective. Replace defective controller. | |
| 0x0913# | Propel Joystick Error Right 2 | General i-Drive fault. | Cycle machine power. If problem persists, replace i-Drive. |
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 40, used with permission. SES ref PF-T7AF-SLWI
SS500 9015517 (01-2018)Page 40 of 128
TROUBLESHOOTING
= Flashing (BDI light) = not flashing
| BDI (Battery Discharge Indicator) | Fault Codes | Fault Condition | Reason | Correction |
|---|---|---|---|---|
| 0x0914# | Propel Solenoid Brake | Controller detects a short circuit in solenoid brake. | Check solenoid brake, connectors, and relevant wiring to controller. If trip is still present after brake, connectors, and wiring have been checked, controller may be defective. Replace defective controller. | |
| 0x0915# | Propel Brake Status Low | General i-Drive fault. | Cycle machine power. If problem persists, replace i-Drive. | |
| 0x0916# | Propel Brake Not Connected | Controller detects an open circuit in solenoid brake at start-up or in standby. | Check solenoid brake, connectors, and relevant wiring to controller. If trip is still present after brake, connectors, and wiring have been checked, controller may be defective. Replace defective controller. | |
| 0x0917# | Propel Brake Interlock Fault | General i-Drive fault. | Cycle machine power. If problem persists, replace i-Drive. | |
| 0x0918# | Propel Relay Interlock Fault | General i-Drive fault. | Cycle machine power. If problem persists, replace i-Drive. | |
| 0x0919# | Propel Relay Stuck Closed | General i-Drive fault. | Cycle machine power. If problem persists, replace i-Drive. | |
| 0x091A# | Propel Relay Coil Voltage | General i-Drive fault. | Cycle machine power. If problem persists, replace i-Drive. | |
| 0x091B# | Propel Watchdog Tripped | General i-Drive fault. | Cycle machine power. If problem persists, replace i-Drive. | |
| 0x091C# | Propel Positive Current Feedback Null | General i-Drive fault. | Cycle machine power. If problem persists, replace i-Drive. | |
| 0x091D# | Propel Positive Current Feedback Out of Range | General i-Drive fault. | Cycle machine power. If problem persists, replace i-Drive. | |
| 0x091E# | Propel Negative Current Feedback Null | General i-Drive fault. | Cycle machine power. If problem persists, replace i-Drive. | |
| 0x091F# | Propel Negative Current Feedback Out of Range | General i-Drive fault. | Cycle machine power. If problem persists, replace i-Drive. | |
| 0x0920# | Propel Speed Control Wiper Warning | Controller detects Parallel Speed Limit Potentiometer Wiper is open circuit or has been shorted to throttle reference(s). Parallel Speed Limit Potentiometer Wiper input is located on pin 9 of 14-way Tiller Connector. | 1. Check wiring to speed control potentiometer. 2. Power cycle machine. 3. If warning persists, replace speed control potentiometer. 4. Test high and low speed functions. | |
| 0x0921# | Propel Speed Control Reference | 1. Propel speed control reference incorrect. | Check wiring to speed control potentiometer. Power cycle machine. | |
| 0x0922# | Propel Throttle Trip Reference Warning | 1. Propel throttle trip reference incorrect. | Check wiring to bail sensor. Power cycle machine. |
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 41, used with permission. SES ref PF-GQ6V-5LTI
SS500 9015517 (01-2018)Page 41 of 128
TROUBLESHOOTING
= Flashing (BDI light) = not flashing
| BDI (Battery Discharge Indicator) | Fault Codes | Fault Condition | Reason | Correction |
|---|---|---|---|---|
| 0x0923# | Propel High Battery Voltage Warning | Controller detects battery voltage has exceeded approximately 35V on 24V controllers and approximately 45V on 36V controllers. | Check condition of batteries, connectors, and relevant wiring to controller. If trip is still present after batteries, connectors, and wiring have been checked, controller may be defective. Replace defective controller. | |
| 0x0924# | Propel High Battery Voltage 2 Warning | Controller detects battery voltage has exceeded approximately 45V on 24V controllers and approximately 49.5V on 36V controllers. | Check condition of batteries, connectors, and relevant wiring to controller. If trip is still present after batteries, connectors, and wiring have been checked, controller may be defective. Replace defective controller. | |
| 0x0925# | Propel Inhibit 1 Warning | Controller detects Inhibit 1 input is active, Inhibit 1 Speed has been set to ‘0’ and Inhibit 1 Operation has been set to ‘Latched’. | Check state of input, Inhibit 1 programming, connectors, and relevant wiring to controller. If trip is still present after state of input, programming, connectors, and wiring have been checked, controller may be defective. Replace defective controller. | |
| 0x0926# | Propel Inhibit 2 Warning | Controller detects Inhibit 2 input is active, Inhibit 2 Speed has been set to ‘0’ and Inhibit 2 Operation has been set to ‘Latched’. | Check state of input, Inhibit 2 programming, connectors, and relevant wiring to controller. If trip is still present after state of input, programming, connectors, and wiring have been checked, controller may be defective. Replace defective controller. | |
| 0x0927# | Propel Inhibit 3 Warning | Controller detects Inhibit 3 input is active, Inhibit 3 Speed has been set to ‘0’ and Inhibit 3 Operation has been set to ‘Latched’. | Check state of input, Inhibit 3 programming, connectors, and relevant wiring to controller. If trip is still present after state of input, programming, connectors, and wiring have been checked, controller may be defective. Replace defective controller. | |
| 0x0928# | Propel Watchdog Warning | 1. Propel controller watchdog tripped. | Power cycle machine. | |
| 0x0929# | Propel Bad Setting Warning | 1. Bad setting programmed to i-Drive. | Reprogram i-Drive. | |
| 0x092A# | Propel Direction Inputs Disagree | General i-Drive fault. | Cycle machine power. If problem persists, replace i-Drive. | |
| 0x092B# | Propel Positive Feedback Voltage Null | General i-Drive fault. | Cycle machine power. If problem persists, replace i-Drive. | |
| 0x092C# | Propel Positive Feedback Voltage Out of Range | General i-Drive fault. | Cycle machine power. If problem persists, replace i-Drive. |
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 42, used with permission. SES ref PF-MVPJ-HXL7
SS500 9015517 (01-2018)Page 42 of 128
TROUBLESHOOTING
= Flashing (BDI light) = not flashing
| BDI (Battery Discharge Indicator) | Fault Codes | Fault Condition | Reason | Correction |
|---|---|---|---|---|
| 0x092D# | Propel Output Voltage Tracking | General i-Drive fault. | Cycle machine power. If problem persists, replace i-Drive. | |
| 0x092E# | Propel Negative Feedback Voltage Null | General i-Drive fault. | Cycle machine power. If problem persists, replace i-Drive. | |
| 0x092F# | Propel Negative Feedback Voltage Out of Range | General i-Drive fault. | Cycle machine power. If problem persists, replace i-Drive. | |
| 0x0930# | Propel ROM Check Warning | 1. The i-Drive memory is corrupted. | Replace damaged i-Drive. | |
| 0x0931# | Propel EEPROM Check Warning | 1. The i-Drive settings are corrupted. | Replace damaged i-Drive. | |
| 0x0932# | Propel Internal 12V Error | 1. The i-Drive hardware is damaged. | Replace damaged i-Drive. | |
| 0x0933# | Propel Low Battery | Controller detects battery voltage has fallen below approximately 13.5V. | Check condition of batteries, connectors, and relevant wiring to controller. If trip is still present after batteries, connectors, and wiring have been checked, controller may be defective. Replace defective controller. | |
| 0x0934# | Propel Very Low Battery | Controller detects a sudden drop in battery voltage. | Check condition of batteries, connectors, and relevant wiring to controller. If trip is still present after batteries, connectors, and wiring have been checked, controller may be defective. Replace defective controller. | |
| 0x0935# | Propel Out of Time | General i-Drive fault. | Cycle machine power. If problem persists, replace i-Drive. | |
| 0x0936# | Propel Low Bridge Voltage | 1. Power surge on propel module inputs causing damage to i-Drive circuitry. | Replace i-Drive. | |
| 0x0937# | Propel Bridge Voltage Greater Then Battery | General i-Drive fault. | Cycle machine power. If problem persists, replace i-Drive. | |
| 0x0938# | Propel Stack Overflow | General i-Drive fault. | Cycle machine power. If problem persists, replace i-Drive. | |
| 0x0939# | Propel Illegal State | General i-Drive fault. | Cycle machine power. If problem persists, replace i-Drive. | |
| 0x093A# | Propel Trip Sense Active | General i-Drive fault. | Cycle machine power. If problem persists, replace i-Drive. | |
| 0x093B# | Propel Trip Sense Not Active | General i-Drive fault. | Cycle machine power. If problem persists, replace i-Drive. | |
| 0x093C# | Propel Trip Latch Not Armed | General i-Drive fault. | Cycle machine power. If problem persists, replace i-Drive. | |
| 0x093D# | Propel Failed To Arm Trip Latch | General i-Drive fault. | Cycle machine power. If problem persists, replace i-Drive. |
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 43, used with permission. SES ref PF-4HUU-QZ2L
SS500 9015517 (01-2018)Page 43 of 128
TROUBLESHOOTING
= Flashing (BDI light) = not flashing
| BDI (Battery Discharge Indicator) | Fault Codes | Fault Condition | Reason | Correction |
|---|---|---|---|---|
| 0x093E# | Propel Trip Latch Became Unarmed | General i-Drive fault. | Cycle machine power. If problem persists, replace i-Drive. | |
| 0x093F# | Propel Left Motor Shorted Low | General i-Drive fault. | Cycle machine power. If problem persists, replace i-Drive. | |
| 0x0940# | Propel Controller Fault | Each time controller trips with a suspected controller error, it records one instance of code ‘4401’ in controller System Log. Actual controller trip code is also recorded in controller Control Log. Number of ‘4401’ trips shown in System Log should equal cumulative number of trip occurrences shown in Control Log. | If controller continues to trip after batteries, connectors, and wiring have been checked, controller may be defective. Replace defective controller. | |
| 0x0941# | Propel Soft Belly Button Active | Controller detects Belly Button Switch has been operated at power-up. | Check Belly Button Switch, connectors, and relevant wiring to controller. If trip is still present after the switch, connectors, and wiring have been checked, controller may be defective. Replace defective controller. | |
| 0x0942# | Propel Internal Temperature Sensor | General i-Drive fault. | Cycle machine power. If problem persists, replace i-Drive. | |
| 0x0950# | Propel Incorrect Profile | 1. Software profile in i-Drive does not match programmed machine configuration. | Select and download correct configuration for correct scrub head type, size, and transaxle using Configuration screen in Tennant Service Diagnostics PC application to correct configuration and i-Drive. | |
| 0x0B11# | Battery Watering Pump Open Warning | 1. Wiring, connector or control board issue on battery watering pump. | Check if battery watering pump is connected to machine harness and verify pump is good. | |
| 0x0106# | Scrub Motor Relay Short Fault | 1. Scrub motor relay connections shorted. 2. Faulty scrub motor relay. | Check connections. Check scrub motor relay. | |
| 0x0902# | Propel High Throttle Fault | 1. Bail is activated before turning on machine. 2. Bail did not release to full rest position due to obstruction. Controller detects Throttle Potentiometer has been displaced at start-up and parameter Throttle Operated At Power-Up has been set to ‘Trip’. | 1. Release bail. 2. Key off and on. 3. If error persists, check for obstruction or damaged bail switch. 4. Replace switch or bail handle if damaged. | |
| 0x0B17# | Battery Watering Pump FET Fault | 1. Control board problem. 2. Power/battery issue on startup. | Replace control board. FET detection includes motor, actuator, wand pump, detergent pump, vacuum, and battery watering pump. | |
| 0x0717# | ec-H2O FET Faults | 1. Control board problem. 2. Power/battery issue on startup. | Replace control board. FET detection includes motor, actuator, detergent pump, vacuum, and battery watering pump. |
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 44, used with permission. SES ref PF-MM2Y-BEA4
SS500 9015517 (01-2018)Page 44 of 128
TROUBLESHOOTING
= Flashing (BDI light) = not flashing
| BDI (Battery Discharge Indicator) | Fault Codes | Fault Condition | Reason | Correction |
|---|---|---|---|---|
| 0x0B01# | Battery Watering System Timed Out Warning | 1. The system is running longer than it should. Pump ends at 1 minute. | Check for leaks in pump housing and battery vents. Check for water in battery tray and on floor around machine. Replace stuck open valves. Check if batteries are defective. | |
| 0x0B02# | Battery Watering System No Feedback Warning | 1. System is running for 10 seconds with no feedback telling board there is water flow. 2. Kinks in hoses. 3. Batteries full. 4. Bad flow sensor. 5. Pump not operating. | Check if hose is kinked and/or batteries are full. Note: There must be a flow of 0.03 gal/min (0.1 liters per minute) for at least 3 seconds to reset system and a stop in flow (pump stops pumping water - batteries full) to allow board to clear fault. | |
| 0x0B13# | Battery Watering Pump Over Current Fault | 1. Current draw higher than expected. | Check harness and pump. | |
| 0x0B14# | Battery Watering Pump Over Current 1 Fault | 1. Current draw higher than expected. | Verify detergent pump load, damage and/or usage conditions. | |
| 0x0B15# | Battery Watering Pump Over Current 2 Fault | 1. Current draw higher than expected. | Verify detergent pump load, damage and/or usage conditions. | |
| 0x0B16# | Battery Watering Pump Shorted Load Fault | 1. Shorted load condition. 2. Higher current draw than hardware design limit. | Check harness, pump, and control boards. | |
| 0x0B04# | Battery Watering CAN Communication Fault | 1. Control boards are not communicating properly. 2. Board lost power (wiring issue). 3. Control board may be damaged. | 1. Power cycle machine. 2. No communication with a network module. Use CANopen troubleshooting techniques. | |
| 0xF103# | Charger CAN Communication Fault | 1. Control boards are not communicating properly. 2. Board lost power (wiring issue). 3. Control board may be damaged. | 1. Power cycle machine. 2. No communication with a network module. Use CANopen troubleshooting techniques. | |
| 0xF100# | Charger Generic Warning | 1. An error condition has occurred with charger unit. | Replace battery charger. | |
| 0xF104# | Charger Timer Phase I Warning | 1. Batteries not able to charge correctly. | Check for low battery voltage. | |
| 0xF101# | Charger No Load Warning | 1. Battery pack may not be plugged into charger. | Check battery cables and connections. | |
| 0xF102# | Charger Overheat Warning | 1. Charger environment not cool enough and cannot complete charge. | Move machine to well-ventilated area. | |
| 0xFF13# | Invalid Key Switch Voltage | 1. AM2 jumper harness installed to User Interface board J7 connector. | Remove AM2 jumper harness. | |
| 0x0711# | ec-H2O Pump Open Warning | 1. Wiring, connector, or control board issue on ec-H2O pump. | Control board is not detecting pump current. Check connections for voltage. Verify pump is operating. | |
| 0x0713# | ec-H2O Pump Over Current Warning | 1. Current draw higher than expected. | Check pump operating current. | |
| 0xFFFF# | Unknown Fault | Fault / problem unknown. | Contact Tennant Technical Support. |
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 45, used with permission. SES ref PF-QOAH-YAYA
SS500 9015517 (01-2018)Page 45 of 128
TROUBLESHOOTING
= Flashing (BDI light) = not flashing
| BDI (Battery Discharge Indicator) | Fault Codes | Fault Condition | Reason | Correction |
|---|---|---|---|---|
| NA | NA | Hour Meter Not Powered | 1. Hour meter wires disconnected. | Check connections and wiring. |
| NA | NA | Bail Not Responding | 1. Bail sensor is unplugged. 2. User Interface board defective. | Check connections and wiring. Replace user interface board. |
| NA | NA | Reverse Switch Not Working | 1. Reverse switch connector unplugged. 2. Large white iDrive connector pin 12 or 13 disconnected. | Check connections and wiring. |
| NA | NA | Vacuum Squeegee Switch Not Functioning | 1. Vacuum squeegee switch disconnected. 2. Faulty wiring. | Check connections and wiring. |
| NA | NA | Scrub Head Not Spinning | 1. Reverse switch connector unplugged. 2. Large white i-Drive connector pin 12 or 13 disconnected. | Check connections and wiring. |
| NA | NA | No Propel Response (no faults reporting) | 1. Propel Motor lead unplugged. 2. Large white i-Drive connector pin 1 disconnected. 3. Bail sensor is unplugged. | Check connections and wiring. |
| NA | NA | No Charge Mode LEDs | User Interface board is not receiving power from charger at J7-9. | Ensure pin connections between UI and charger connectors are not broken or unseated. |
A Service Diagnostics tool is available to provide additional fault detail. See SERVICE DIAGNOSTICS TOOL in the SERVICE section of this manual (page 74).
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 46, used with permission. SES ref PF-R6V3-UFPF
SS500 9015517 (01-2018)Page 46 of 128
TROUBLESHOOTING
ec-H2O NanoClean icon faults
In shortThese codes appear on the control panel as the ec-H2O icon on machines with the ec-H2O option. Many say to refer to the ec-H2O NanoClean troubleshooting guide or contact Tennant Technical Support. Call us at 800-440-6723 and give us the code.
| Icon | Code | Fault Condition | Reason | Correction |
|---|---|---|---|---|
| ec-H2O icon | 0x0700# | ec-H2O Generic Fault | 1. Generic fault with ec-H2O. | Refer to ec-H2O NanoClean troubleshooting guide or contact Tennant Technical Support. |
| ec-H2O icon with radiating lines | 0x0702# | ec-H2O Pressure Switch Active | 1. The system pressure switch is detecting a trip or unconnected. | 1. System pressure too high; needs repair. 2. Check connections. Verify functionality of scrub head switch and parking brake switch. |
| ec-H2O icon | 0x0704# | ec-H2O CAN Communication Fault | 1. Board lost power or CAN connection (wiring issue) 2. ec-H2O board may be damaged. 3. ec-H2O connector disconnected. 4. ec-H2O connector pin 2 or 3 disconnected. | 1. Power cycle machine. 2. No communication with a network module. 3. Check connections. |
| ec-H2O icon with radiating lines | 0x0707# | ec-H2O WCM Expired | 1. ec-H2O WCM cartridge expired. | 1. Replace with new cartridge. |
| ec-H2O icon with radiating lines | 0x0708# | ec-H2O System Over Regulation Warning | 1. Cell has been operating over target current condition for last 50 treated gallons. | Check water condition in solution tank for presence of detergents. |
| ec-H2O icon | 0x0711# | ec-H2O Pump Open Fault | 1. Wiring, connector, or control board issue on ec-H2O pump. | Control board is not detecting pump current. Check connections for voltage and verify pump is operating. |
| ec-H2O icon | 0x0713# | ec-H2O Pump Over Current Fault | 1. Current draw higher than expected. | Check pump operating current. |
| ec-H2O icon | 0x0716# | ec-H2O Pump Short Fault | 1. Shorted load condition. 2. Some higher current draw than hardware design limit. | Check ec-H2O pump and harness |
| ec-H2O icon | 0x0717# | ec-H2O FET Faults | 1. Control board problem. 2. Power/battery issue on startup. | Replace control board. FET detection includes motor, actuator, detergent pump, vacuum and battery watering pump. |
| ec-H2O icon | 0x0720# | ec-H2O Cell Generic Fault | 1. Generic fault with ec-H2O cell. | Refer to ec-H2O NanoClean troubleshooting guide or contact Tennant Technical Support. |
| ec-H2O icon with radiating lines | 0x0721# | ec-H2O Cell Open Warning | 1. Wiring, connector, or control board issue on ec-H2O cell. | Refer to ec-H2O NanoClean troubleshooting guide or contact Tennant Technical Support. |
| ec-H2O icon with radiating lines | 0x0723# | ec-H2O Cell Over Current Warning | 1. Current draw higher than expected. | Refer to ec-H2O NanoClean troubleshooting guide or contact Tennant Technical Support. |
| ec-H2O icon with radiating lines | 0x0726# | ec-H2O Cell Short Warning | 1. Shorted load condition. 2. Some higher current draw than hardware design limit. | Refer to ec-H2O NanoClean troubleshooting guide or contact Tennant Technical Support. |
In the Icon column the manual shows the ec-H2O icon by itself on some rows and with short radiating lines around it on others. Rows marked "with radiating lines" show it that way.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 47, used with permission. SES ref PF-TAGD-M5S6
SS500 9015517 (01-2018)Page 47 of 128
TROUBLESHOOTING
| Icon | Code | Fault Condition | Reason | Correction |
|---|---|---|---|---|
| ec-H2O icon | 0x0727# | ec-H2O Cell FET Faults | 1. Control board problem. 2. Power/battery issue on startup. | Replace control board. FET detection includes motor, actuator, detergent pump, vacuum and battery watering pump. |
| ec-H2O icon | 0x0728# | ec-H2O Cell Over Regulation | 1. Control board problem. | Refer to ec-H2O NanoClean troubleshooting guide or contact Tennant Technical Support. |
| ec-H2O icon | 0x0729# | ec-H2O Cell Under Regulation | 1. Control board problem. | Refer to ec-H2O NanoClean troubleshooting guide or contact Tennant Technical Support. |
| ec-H2O icon with radiating lines | 0x072A# | ec-H2O Cell Electrode Fault | 1. Cell current is operating below allowed operating condition. | See NanoClean troubleshooting guide. Replace plumbing half of ec-H2O module. |
| ec-H2O icon with radiating lines | 0x072B# | ec-H2O Cell Overcurrent Warning | 1. Cell short condition. 2. High Conductivity Water. 3. Detergent in solution. | Warning condition will resolve within 60 seconds if condition clears. If condition remains after timeout, a cell short fault will occur. |
| ec-H2O icon | 0x0741# | ec-H2O WCM Pump Open Warning | 1. Wiring, connector or control board issue on the ec-H2O pump. | Check Water Conditioning Module micro pump is connected to machine harness and verify pump is good. |
| ec-H2O icon | 0x0746# | ec-H2O WCM Pump Short Warning | 1. Shorted load condition. 2. Some higher current draw than hardware design limit. | Check harness and verify Water Conditioning Module micro pump is good. |
| ec-H2O icon | 0x0747# | ec-H2O WCM Pump FET Fault | 1. Control board problem. 2. Power/battery issue on startup. | Replace control board. FET detection includes motor, actuator, detergent pump, vacuum and battery watering pump. |
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 48, used with permission. SES ref PF-CNSW-A2P6
SS500 9015517 (01-2018)Page 48 of 128
TROUBLESHOOTING
Off-board charger error and fault codes
In shortThese are the error and fault codes shown by the off-board charger. Most clear once the battery, cable or AC supply problem is fixed. If an internal charger fault (F-0-0-x) repeats, contact the vehicle or machine manufacturer.
| Code | Description | Cause | Solution |
|---|---|---|---|
| E-0-0-1 E-0-2-1# | Battery high voltage | 1. Wrong battery voltage for charger. 2. Other charger also attached. 3. Resistive battery. | Check battery voltage and cable connections. Check battery size and condition. Error will automatically clear once voltage is in range. |
| E-0-0-2 E-0-2-2# | Battery low voltage | 1. Battery disconnected. 2. Battery over discharged. | Check battery voltage and cable connections. Check battery size and condition. Error will automatically clear once voltage is in range. |
| E-0-0-3# | Charge time out caused by battery pack not reaching required voltage within safe time limit. (charge profile dependent) | 1. Charger output reduced due to high temperatures. 2. Poor battery health. 3. Very deeply discharged battery. 4. Poorly connected battery. | Operate at lower ambient temperature. Replace battery pack. Check DC connections. Error will clear once charger is reset by cycling DC or AC. |
| E-0-0-4# | Battery could not meet minimum voltage (charge profile dependent) | 1. Shorted or damaged cells. | Replace battery pack. Check DC connections. Error will automatically clear once charger is reset by cycling DC or AC. |
| E-0-0-7# | Battery amp hour limit exceeded | 1. Poor battery health. 2. Very deeply discharged battery. 3. Poorly connected battery. 4. High parasitic loads on battery while charging | Replace battery pack. Check DC connections. Disconnect parasitic loads. Error will automatically clear once charger is reset by cycling DC or AC. |
| E-0-0-8# | Battery temperature is out of range | 1. Possible battery temperature sensor error. | Check temperature sensor and connections. Reset charger. Error will clear once condition has been corrected. |
| E-0-1-2# | Reverse polarity error | 1. Battery incorrectly connected to charger. | Check battery connections. Error will clear once condition has been corrected |
| E-0-1-6 E-0-1-8 E-0-2-6# | USB operation failed (software) | 1. Software upgrade failure. 2. Script operation failure. | Ensure USB flash drive is properly formatted and reinsert USB flash drive. |
| E-0-1-7# | USB operation failed (hardware) | 1. Hardware upgrade failure. | Remove and reinsert USB drive. If condition persists, cycle AC and retry by reinserting USB drive. |
| E-0-2-3# | High AC voltage error (>270VAC) | 1. Voltage error. | Connect charger to an AC source that provides stable AC between 85 - 270 VAC / 45-65 Hz. Error will clear once condition has been corrected. |
| E-0-2-4# | Charger failed to initialize | 1. Charger has failed to turn on properly | Disconnect AC input and battery for 30 seconds before retrying. |
| E-0-2-5# | Low AC voltage oscillation error | 1. AC source is unstable. 2. Undersized generator. 3. Severely undersized input cables | Connect charger to an AC source that provides stable AC between 85 - 270 VAC / 45-65 Hz. Error will clear once condition has been corrected. |
| F-0-0-1 F-0-0-2 F-0-0-3 F-0-0-4 F-0-0-6# | Internal charger fault | 1. Internal charger fault. | Remove AC and battery for minimum 30 seconds and retry charger. If it fails again, contact the vehicle or machine manufacturer. |
Off-Board Charger Error and Fault Codes table taken from the Delta-Q IC650 Charger Manual.
© Delta-Q Technologies Corp. (PN: 710-0138 Rev 3 Date: 14/07/2014)
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 49, used with permission. SES ref PF-KH2K-WC6I
SS500 9015517 (01-2018)Page 49 of 128
TROUBLESHOOTING
Onboard battery charging on
In shortFrom here to page 69 each machine system has a wiring diagram showing what is energized when it works, followed by a step-by-step table for when it fails. Work through the steps in order.
Wire colors in the diagram: red = Battery Positive +, hatched gray = Battery Negative -, blue dashes = AC Volts.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 50, used with permission. SES ref PF-T736-PYVC
SS500 9015517 (01-2018)Page 50 of 128
TROUBLESHOOTING
Batteries fail to charge / reduced run time (onboard charger)
In shortCheck for a flashing fault code, then the AC supply, the charger settings, the cables and the battery water level, then test specific gravity. Call us at 800-440-6723 if you are not sure which step applies.
| Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
| 1 |
| See FAULTS in TROUBLESHOOTING section of this manual | Proceed to STEP 2 | |
| 2 |
| Proceed to STEP 3 | Check AC supply circuit protection | |
| 3 |
| Proceed to STEP 4 | Reprogram battery charger | |
| 4 |
| Repair or replace battery / battery charger cables | Proceed to STEP 5 | |
| 5 |
| Proceed to STEP 6 | Add distilled water as necessary until lead plates are covered | |
| 6 |
| Replace battery charger | Replace battery charger or batteries |
Terms:
AC = Alternating Current
AGM = Absorbed Glass Mat
Specific Gravity = Relative density of a substance compared to water (1.000 specific gravity)
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 51, used with permission. SES ref PF-4SBH-3IDM
SS500 9015517 (01-2018)Page 51 of 128
TROUBLESHOOTING
Off board battery charging on
Wire colors in the diagram: red = Battery Positive +, hatched gray = Battery Negative -, blue dashes = AC Volts.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 52, used with permission. SES ref PF-HW7S-SE2L
SS500 9015517 (01-2018)Page 52 of 128
TROUBLESHOOTING
Batteries fail to charge / reduced run time (off board charger)
| Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
| 1 |
| See OFF BOARD BATTERY CHARGER FAULTS in TROUBLESHOOTING section of this manual | Proceed to STEP 2 | |
| 2 |
| Proceed to STEP 3 | Check AC supply circuit protection | |
| 3 |
| Repair or replace battery / battery charger cables | Proceed to STEP 4 | |
| 4 |
| Proceed to STEP 5 | Add distilled water as necessary until lead plates are covered | |
| 5 |
| Replace battery charger | Replace battery charger or batteries |
Terms:
AC = Alternating Current
AGM = Absorbed Glass Mat
Specific Gravity = Relative density of a substance compared to water (1.000 specific gravity)
Corrected an obvious misprint: step 4 printed "Proceed to STEP 6" (now STEP 5, since this table has only five steps and step 5 is the specific gravity test, as step 6 is on page 51).
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 53, used with permission. SES ref PF-OCHH-WFSD
SS500 9015517 (01-2018)Page 53 of 128
TROUBLESHOOTING
Power up on
Wire colors in the diagram: red = Battery Positive +, hatched gray = Battery Negative -, blue dashes = AC Volts.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 54, used with permission. SES ref PF-CV3C-CB6C
SS500 9015517 (01-2018)Page 54 of 128
TROUBLESHOOTING
Machine failed to power up
In shortCheck that total battery voltage is above 20 VDC, reset circuit breakers #1 and #2, then trace the voltage through the power-up circuit using the electrical schematic.
| Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
| 1 |
| Proceed to STEP 2 | Recharge batteries and test power-up circuit operation | |
| 2 |
| Reset and test power-up circuit operation | Proceed to STEP 3 | |
| 3 |
| Repeat STEP 1 | Identify voltage drop location and repair or replace necessary components |
Terms:
VDC = DC Voltage
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 55, used with permission. SES ref PF-LI6S-M66U
SS500 9015517 (01-2018)Page 55 of 128
TROUBLESHOOTING
Propel subsystem
Wire colors in the diagram: red = Battery Positive +, hatched gray = Battery Negative -, blue dashes = AC Volts.
Operational matrix
| Function | Enabled | Disabled |
|---|---|---|
| Propel (Option) | • Fwd/Rev Throttle Command • Fwd/Rev Switch Input | • Battery Charger ON Interlock • Neutral - Ready State • PMC (Propel Motor Controller) Fault |
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 56, used with permission. SES ref PF-P624-B5SA
SS500 9015517 (01-2018)Page 56 of 128
TROUBLESHOOTING
Machine failed to propel
In shortCheck for a flashing fault code, reset circuit breaker #7, confirm the software is set up to enable propel, then trace the voltage with the drive wheels off the floor.
| Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
| 1 |
| See FAULTS in TROUBLESHOOTING section of this manual | Proceed to STEP 2 | |
| 2 |
| Reset and test power-up circuit operation | Proceed to STEP 3 | |
| 3 |
| Proceed to STEP 4 | Reprogram software | |
| 4 |
| Repeat STEP 1 | Identify voltage drop location and repair or replace necessary components |
Terms:
BDI = Battery Discharge Indicator
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 57, used with permission. SES ref PF-KFG4-ZXR4
SS500 9015517 (01-2018)Page 57 of 128
TROUBLESHOOTING
Scrub motor on
Wire colors in the diagram: red = Battery Positive +, hatched gray = Battery Negative -, blue dashes = AC Volts.
Note on the drawing: both motors are labeled "Left Scrub Motor". The second one (CB6, 49/WHT) is the right scrub motor, as the electrical schematic on page 13 shows (MTR-3 left, MTR-4 right).
Operational matrix
| Function | Enabled | Disabled |
|---|---|---|
| Scrub Motor | • Head Lowered - Foot Pedal • Fwd/Rev Throttle Command or Bail Activated on non-Propel models. | • Head Raised - Foot Pedal • Neutral - Ready State or Bail released on non-propel models. • Low Battery Voltage • Fault • Battery Charger ON Interlock |
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 58, used with permission. SES ref PF-LVKD-MVGK
SS500 9015517 (01-2018)Page 58 of 128
TROUBLESHOOTING
Scrub motor failed to turn on
In shortCheck for a flashing fault code, reset circuit breakers #5 and #6, then trace the voltage through the scrub motor circuit using the electrical schematic.
| Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
| 1 |
| See FAULTS in TROUBLESHOOTING section of this manual | Proceed to STEP 2 | |
| 2 |
| Reset and test power-up circuit operation | Proceed to STEP 3 | |
| 3 |
| Repeat STEP 1 | Identify voltage drop location and repair or replace necessary components |
Terms:
BDI = Battery Discharge Indicator
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 59, used with permission. SES ref PF-AMIO-DSHO
SS500 9015517 (01-2018)Page 59 of 128
TROUBLESHOOTING
Scrub head lift actuator
Wire colors in the diagram: red = Battery Positive +, hatched gray = Battery Negative -, blue dashes = AC Volts.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 60, used with permission. SES ref PF-3F5G-NOTR
SS500 9015517 (01-2018)Page 60 of 128
TROUBLESHOOTING
Scrub head failed to lift / lower
In shortCheck for a flashing fault code and the actuator wiring, then test the voltage at the actuator connector. If the actuator is blocked, clear the obstruction or replace the actuator.
| Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
| 1 |
| See FAULTS in TROUBLESHOOTING section of this manual | Proceed to STEP 2 | |
| 2 |
| Proceed to STEP 3 | Fix connections and repeat STEP 1 | |
| 3 |
| Check actuator and head lift assembly for any obstructions. If actuator is not installed due to blockage, replace actuator | Identify voltage drop location and repair or replace necessary components |
Terms:
BDI = Battery Discharge Indicator
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 61, used with permission. SES ref PF-5UNA-HTTM
SS500 9015517 (01-2018)Page 61 of 128
TROUBLESHOOTING
Vacuum fan on
Wire colors in the diagram: red = Battery Positive +, hatched gray = Battery Negative -, blue dashes = AC Volts.
Operational matrix
| Function | Enabled | Disabled |
|---|---|---|
| Vacuum Fan | • Squeegee Lowered | • Squeegee Raised • Battery Charger ON Interlock • E-Stop Pushed • CB-4 Popped |
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 62, used with permission. SES ref PF-6MR4-LB66
SS500 9015517 (01-2018)Page 62 of 128
TROUBLESHOOTING
Vacuum fan failed to turn on
In shortCheck for a flashing fault code, reset circuit breaker #4, then trace the voltage through the vacuum fan circuit using the electrical schematic.
| Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
| 1 |
| See FAULTS in TROUBLESHOOTING section of this manual | Proceed to STEP 2 | |
| 2 |
| Reset and test power-up circuit operation | Proceed to STEP 3 | |
| 3 |
| Repeat STEP 1 | Identify voltage drop location and repair or replace necessary components |
Terms:
BDI = Battery Discharge Indicator
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 63, used with permission. SES ref PF-NUWV-JIQV
SS500 9015517 (01-2018)Page 63 of 128
TROUBLESHOOTING
Solution control on (conventional)
Wire colors in the diagram: red = Battery Positive +, hatched gray = Battery Negative -, blue dashes = AC Volts.
Operational matrix
| Function | Enabled | Disabled |
|---|---|---|
| Solution Control (Conventional) | • Head Lowered - One Step Button • Solution Control ON • Fwd/Rev Throttle Command or Bail activated | • Head Raised - One Step Button • Solution Control OFF • Neutral - Ready State or bail released • Low Battery Voltage • Fault • Battery Charger ON Interlock |
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 64, used with permission. SES ref PF-IRIS-PUGQ
SS500 9015517 (01-2018)Page 64 of 128
TROUBLESHOOTING
Solution control failed to turn on (conventional)
In shortWork through these two steps when the conventional solution flow will not start. First check for a flashing BDI fault code, then check the voltage on the solution control circuit against the electrical schematic.
| Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
| 1 |
| See FAULTS in TROUBLESHOOTING section of this manual | Proceed to STEP 2 | |
| 2 |
| Repeat STEP 1 | Identify voltage drop location and repair or replace necessary components |
Terms: BDI = Battery Discharge Indicator
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 65, used with permission. SES ref PF-NGRO-KSLU
SS500 9015517 (01-2018)Page 65 of 128
TROUBLESHOOTING
Solution control on (ec-H2O)
Wiring schematic of the ec-H2O solution control circuit, with the operational matrix. Battery positive is drawn in red and battery negative is hatched.
Operational matrix: solution control (ec-H2O)
| Enabled | Disabled |
|---|---|
|
|
Pressure switch: N.C. opens at 6 PSI +/- 2 PSI = fault. ec-H2O pump voltage: Low 6 volts, Med 10 volts, Hi 13 volts. R-1 is 120 Ω (located in harness). C1 capacitor is 0.01 µF.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 66, used with permission. SES ref PF-LEP6-WIDP
SS500 9015517 (01-2018)Page 66 of 128
TROUBLESHOOTING
Solution control failed to turn on (ec-H2O)
| Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
| 1 |
| See FAULTS in TROUBLESHOOTING section of this manual | Proceed to STEP 2 | |
| 2 |
| Reset and test power-up circuit operation | Proceed to STEP 3 | |
| 3 |
| Repeat STEP 1 | Identify voltage drop location and repair or replace necessary components |
Terms: BDI = Battery Discharge Indicator
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 67, used with permission. SES ref PF-KIYZ-PMRX
SS500 9015517 (01-2018)Page 67 of 128
TROUBLESHOOTING
ABW (automatic battery watering) (option)
Wiring schematic of the automatic battery watering system. Battery positive is drawn in red and battery negative is hatched.
Battery watering pump activates under the following conditions:
- 10 complete charge cycles
- 20 opportunity/incomplete charge cycles
- 17 combined charge cycles
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 68, used with permission. SES ref PF-3HH2-JZFV
SS500 9015517 (01-2018)Page 68 of 128
TROUBLESHOOTING
ABW (automatic battery watering) system failed to turn on
| Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
| 1 |
| See FAULTS in TROUBLESHOOTING section of this manual | Proceed to STEP 2 | |
| 2 |
| Fill ABW tank with water | Proceed to STEP 3 | |
| 3 |
| Reset and test power-up circuit operation | Proceed to STEP 4 | |
| 4 |
| Repeat STEP 1 | Identify voltage drop location and repair or replace necessary components |
Terms: BDI = Battery Discharge Indicator
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 69, used with permission. SES ref PF-TCPS-HSZ6
SS500 9015517 (01-2018)Page 69 of 128
TROUBLESHOOTING
i-Drive testing (universal schematic)
Universal wiring schematic for testing the i-Drive module. Battery positive is drawn in red and battery negative is hatched.
Battery set: (4) 6VDC batteries. Circuit breaker CB7: 60A. Throttle potentiometer: 100K Ω.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 70, used with permission. SES ref PF-PPHM-IG5W
SS500 9015517 (01-2018)Page 70 of 128
TROUBLESHOOTING
i-Drive testing procedure
In shortCheck the power supply to the circuit board first (switched positive, unswitched positive and negative), then the inputs, then the outputs. Applied voltage must be within 1 volt of actual battery voltage.
| Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
| 1 Switched (+)* |
| Applied voltage must be within 1 volt of actual battery voltage | Proceed to STEP 2 | Identify voltage drop location and repair or replace necessary components1 |
| 2 Unswitched (+)* |
| Applied voltage must be within 1 volt of actual battery voltage | Proceed to STEP 3 | Identify voltage drop location and repair or replace necessary components1 |
| 3 Negative (-)* |
| Applied voltage must be within 1 volt of actual battery voltage | Proceed to STEP 4 | Identify voltage drop location and repair or replace necessary components1 |
| 4 Inputs |
| Proceed to STEP 5 | Repair or replace necessary input components1 | |
| 5 Outputs |
| Repair or replace necessary output components1 | Replace circuit board |
1 Wire harnesses are components
2 An open circuit has infinite resistance “O.L.”. A shorted circuit has 0 (zero) resistance. Always test through entire circuit.
* Switched (+) and Unswitched (+) indicate positive battery voltage applied to circuit board. Negative (-) indicates battery negative (ground) as part of power supply to circuit board.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 71, used with permission. SES ref PF-RSD4-V4QM
SS500 9015517 (01-2018)Page 71 of 128
TROUBLESHOOTING
Entering the manual mode
In shortManual mode lets you run the scrub motors, solution flow and head actuator from the control panel buttons for testing. Hold the 1-Step button while turning the key ON, and turn the key OFF to leave manual mode.
Note: Propel functionality is disabled while the machine is in the manual mode.
- Turn the key switch to the OFF position.
- Press and hold the center of the 1-Step button and turn the key switch to the ON position. Continue holding the 1-Step button until the BDI (battery discharge indicator) indicator lights illuminate.
- Release the 1-Step button.
- Press the applicable button to access the corresponding function. Squeeze the bail to start the actuator and release the bail to stop the actuator.
Manual mode controls A to I - Toggles scrub motor(s) on or off.
- Toggles actuator direction.
- LEDs display actuator direction.
- Indicates battery discharge level.
- Indicates ec-H2O option is active. Turned on and off from rocker switch on accessory panel.
- LEDs display flow rate setting.
- Cycles between four solution flow setting options (Off, 1, 2, 3). When ec-H2O is enabled, ec-H2O will function instead of conventional solution.
- LED indicates if scrub motor(s) are on or off.
- B and G pressed together simultaneously toggle between ABW pump on or ABW pump off.
- Turn the key switch to OFF position to exit manual mode and return to operating mode.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 72, used with permission. SES ref PF-AXY4-HQQM
SS500 9015517 (01-2018)Page 72 of 128
SERVICE
Service
This page is blank in the manual.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 73, used with permission. SES ref PF-Y2MI-EPOP
SS500 9015517 (01-2018)Page 73 of 128
SERVICE
Service diagnostics tool
In shortAfter replacing the i-Drive or interface module, or adding an option in the field, the machine must be reprogrammed with the Service Diagnostics software on a Windows computer. It connects to the control console by USB cable. This page starts the steps for a new interface module.
Machine software configuration, which is stored in the interface module, must be programmed if the i-Drive or interface modules are replaced or if optional features are installed in the field.
Authorized service providers can download the Service Diagnostics software from the My Tennant portal at www.tennantco.com. Factory-Direct Tennant Service personnel have this software installed on their ServiceLink devices.
A USB cable connects from the notebook to an external port on the control console. The SERVICE DIAGNOSTICS TOOL configures up to five control modules depending on optional trim packages. The interface module stores configuration data and communicates via RS232 serial communication with the i-Drive and through a CAN-Bus to all other modules.
- Interface Module: The interface module is located in the operator console.
- Machine Control Module: The machine control module is located beneath the circuit board mounting heat shrink at the rear of the battery compartment.
- Propel Module: The propel module is located at the rear of the solution tank, behind the control module.
- IRIS Module (option): The IRIS module is attached to the machine control module as an assembly.
- Onboard Battery Charger Module (option): The onboard battery charger is located beneath the plastic cover at the rear of the machine.
- ec-H2O NanoClean Module (option): The ec-H2O module is located beneath the recovery tank at the front of the machine.
Programming a new interface module
SYSTEM REQUIREMENTS: Windows® 7 Operating System, Microsoft .NET 4.5 or later, USB to Mini-USB cable.
- Connect a USB cable from a computer to the machine.
- Turn the key switch to the ON position.
- Double click the Service Diagnostics desktop shortcut or find the software in All Programs to launch the software.
NOTE: Computer may prompt a restart after installing the machine driver. Decline the restart, close Service Diagnostics, and relaunch Service Diagnostics.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 74, used with permission. SES ref PF-MWNC-FJC3
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NOTE: Check USB cable connection to the machine if the screen below appears on the computer screen.
- The Service Diagnostics tool now connects to the control module network.
- The Service Diagnostics tool automatically detects a new interface module installation. Enter the model and serial number and then click the arrow button.
- Inspect the actual machine configuration and match applicable configurations from the drop-down menus and then click on the arrow button.
NOTE: Reconfiguration may take several minutes.
NOTE: Configurations may differ from what is shown, depending on the options / features are equipped on the machine.
- The programming process begins and all control modules are updated (if applicable).
- The Service Diagnostic tool may prompt to cycle the key switch OFF/ON during the process. If prompted, click the OK button and then cycle the key switch to allow the programming to continue.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 75, used with permission. SES ref PF-VEAO-5XPC
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- Cycle the key switch to save selections.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 76, used with permission. SES ref PF-23ZS-DVXF
SS500 9015517 (01-2018)Page 76 of 128
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Reconfiguring existing modules
In shortUse the Service Diagnostics software to check for firmware updates and change the machine configuration, for example after an option is installed. Cycle the key switch afterward to save changes.
SYSTEM REQUIREMENTS: Windows® 7 Operating System, Microsoft .NET 4.5 or later, USB to Mini-USB cable.
Machine software configuration, which is stored in the interface module, must be programmed if the i-Drive or interface modules are replaced or if optional features are installed in the field.
Authorized service providers can download the Service Diagnostics software from the My Tennant portal by visiting www.tennantco.com. Factory-Direct Tennant Service personnel have this software installed on their ServiceLink devices.
A USB cable connects from the notebook to an external port on the control console. The SERVICE DIAGNOSTICS TOOL configures up to five control modules depending on optional trim packages. The interface module stores configuration data and communicates via RS232 serial communication with the i-Drive and through a CAN-Bus to all other modules.
- Connect a USB cable from the computer to the machine.
- Turn the key switch to the ON position.
- Double click the Service Diagnostics desktop shortcut or find the software in All Programs to launch the software.
NOTE: Computer may prompt a restart after installing the machine driver. Decline the restart, close Service Diagnostics, and relaunch Service Diagnostics.
- Check for machine software updates. A yellow highlight surrounding the Firmware button indicates that updates are available. Click on the Firmware button to install updates.
NOTE: Update installation may take several minutes.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 77, used with permission. SES ref PF-MXEY-JGGQ
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- Click on the Configuration button to display a list of configurable options.
- Select the configurable options that apply from the drop down menus and then click individual arrow buttons to launch individual module reprogramming (this is faster) or the header arrow button to launch all module reprogramming (this is slower). Click the refresh button to display the new configuration after reprogramming is completed.
- Cycle the key switch to save changes.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 78, used with permission. SES ref PF-XR5X-5BIL
SS500 9015517 (01-2018)Page 78 of 128
SERVICE
Programming the drive module
In shortAfter the drive module is replaced, use the Service Diagnostics i-Drive button to program it with factory defaults. Cycle the key switch afterward to save.
SYSTEM REQUIREMENTS: Windows® 7 Operating System, Microsoft .NET 4.5 or later, USB to Mini-USB cable.
Machine software configuration, which is stored in the interface module, must be programmed if the i-Drive or interface modules are replaced or if optional features are installed in the field.
Authorized service providers can download the Service Diagnostics software from the My Tennant portal by visiting www.tennantco.com. Factory-Direct Tennant Service personnel have this software installed on their ServiceLink devices.
A USB cable connects from the notebook to an external port on the control console. The SERVICE DIAGNOSTICS TOOL configures up to five control modules depending on optional trim packages. The interface module stores configuration data and communicates via RS232 serial communication with the i-Drive and through a CAN-Bus to all other modules.
- Connect a USB cable from a notebook computer to the machine.
- Turn the key switch to the ON position.
- Double click the Service Diagnostics desktop shortcut or find the software in All Programs to launch the software.
NOTE: Computer may prompt a restart after installing the machine driver. Decline the restart, close Service Diagnostics, and relaunch Service Diagnostics.
- Check for machine software updates. A yellow highlight surrounding the Firmware button indicates that updates are available. Click on the Firmware button to install updates.
NOTE: Update installation may take several minutes.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 79, used with permission. SES ref PF-V6K4-KMQW
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- Click on the i-Drive button.
- Click on the Program Factory Defaults button to program the drive module.
- Cycle the key switch to save.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 80, used with permission. SES ref PF-TDQE-GQUY
SS500 9015517 (01-2018)Page 80 of 128
SERVICE
Reconfiguring the machine after new hardware / option installation
In shortAfter new hardware or an option is installed, use the Configuration button in Service Diagnostics to select the new setting and program the machine. The programming takes several minutes (see page 82).
SYSTEM REQUIREMENTS: Windows® 7 Operating System, Microsoft .NET 4.5 or later, USB to Mini-USB cable.
Machine software configuration, which is stored in the interface module, must be programmed if the i-Drive or interface modules are replaced or if optional features are installed in the field.
Authorized service providers can download the Service Diagnostics software from the My Tennant portal by visiting www.tennantco.com. Factory-Direct Tennant Service personnel have this software installed on their ServiceLink devices.
A USB cable connects from the notebook to an external port on the control console. The SERVICE DIAGNOSTICS TOOL configures up to five control modules depending on optional trim packages. The interface module stores configuration data and communicates via RS232 serial communication with the i-Drive and through a CAN-Bus to all other modules.
- Connect a USB cable from the computer to the machine.
- Turn the key switch to the ON position.
- Double click the Service Diagnostics desktop shortcut or find the software in All Programs to launch the software.
- Click on the Configuration button to display a list of configurable options.
- Select the configurable changes that apply from the drop down menus.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 81, used with permission. SES ref PF-P2XS-4AIL
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- Select the new hardware setting from the pull down menu.
- Click on the Program button to configure the machine for the new hardware / option. Reprogramming for new hardware should take several minutes to complete.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 82, used with permission. SES ref PF-XY2J-I3AB
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SERVICE
Changing the off-board battery charger settings
In shortThe off-board charger ships set for Trojan flooded batteries (profile 003). If the machine uses a different battery type, change the charger profile with the Select Charge Profile button, using the table below, to prevent battery damage.
NOTE: The battery charger algorithm profile is programmed for Trojan flooded (wet) lead acid batteries 160-260 AH range (Algorithm position 003 - factory default). Program the charger algorithm profile according to specific battery type as described below to prevent battery damage.
- Disconnect the charger power cable from the wall outlet or the charger. Wait 30 seconds for the input relay to open.
- While reconnecting AC input, press and hold the Select Charge Profile Button for approximately 10 seconds, through the light check function, until the Error Indicator is illuminated (amber) and Battery Charging Indicator starts flashing (green).
- Press and release the Select Charge Profile Button to advance through the charge profiles. The selected charging profile will be displayed up to three times.
NOTE: Process will time out and profile will remain unchanged if there is 15 seconds of inactivity. A profile number is allowed to display three times.
- When the new charging profile is displayed, press and hold the Select Charge Profile button for 10 seconds to confirm selection and exit Profile Selection Mode. When the charge profile is confirmed, the Error Indicator and Battery Charging Indicator lights will turn off and the blue AC Power Indicator will remain illuminated. Release the Select Charge Profile button.
- Press the Select Charge Profile Button to ensure the new profile is selected.
| Algorithm Profile ID | Battery Description |
|---|---|
| 003 | Trojan flooded batteries 160-260 AH range |
| 021 | TAB/ENERSYS flooded batteries 180-260AH Range |
| 028 | DEKA GEL batteries 180-200 AH range |
| 043 | DISCOVER AGM batteries 200-400 AH range |
| 051 | SONNENSCHEIN GEL batteries 200-400 AH range |
| 168 | TPPL, 12XFC48/12XFC58/12XFC60 |
Changing the Off-Board Battery Charger Setting instructions and photos taken from the Delta-Q IC650 Charger Manual.
© Delta-Q Technologies Corp. (PN: 710-0138 Rev 3 Date: 14/07/2014)
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 83, used with permission. SES ref PF-EYWR-YFDA
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Cleaning systems
In shortReplacing the transaxle means draining both tanks, disconnecting the batteries, removing the rear squeegee and tipping the machine onto a protective blanket. The rest of the procedure continues on page 85.
Remove / install the transaxle assembly
Hex nuts: max torque 18 ft-lb (24 Nm).
FOR SAFETY: Before leaving or servicing machine, stop on level surface, turn off machine, remove key, and set parking brake if equipped.
FOR SAFETY: When servicing machine, Disconnect battery connection and charger cord before working on machine.
- Completely drain the solution tank and the recovery tank.
- Turn the key to the OFF position.
- Disconnect the battery cables from the batteries.
- Remove the batteries from the machine.
FOR SAFETY: When servicing machine, avoid contact with battery acid, keep all metal objects off batteries, and use a hoist or adequate assistance when lifting batteries.
- Remove the rear squeegee assembly from the machine.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 84, used with permission. SES ref PF-GLP6-PGHT
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SERVICE
- Position a protective blanket next to the side of the machine that will be tipped onto the floor.
NOTE: Do Not allow the machine to drop when tipping it onto the protective blanket. The scrub head and other components could be damaged if machine is allowed to drop. If necessary, remove the scrub head from the machine before tipping the machine onto its side.
- Carefully tip the machine onto the protective blanket.
- Disconnect hoses as necessary to access the transaxle assembly.
- Cut the wire tie from the main wire harness / transaxle connection and disconnect the main wire harness from the transaxle assembly.
- Remove both transaxle mounting brackets securing the transaxle assembly / wheels to the machine. Set the transaxle mounting brackets, flat washers, and hex screws aside.
- If replacing the transaxle assembly only: Remove both wheels from the transaxle motor. Set the wheels, both keys, flat washers, and hex nuts aside. Discard the removed transaxle.
- If installing a new transaxle assembly only: Install the wheels onto the new transaxle assembly.
- Install the new transaxle assembly / reinstall removed transaxle assembly in the reverse order of disassembly.
Parts for this job
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 85, used with permission. SES ref PF-ZX7Z-M2DT
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SERVICE
Removing / installing the drive motor carbon brushes
In shortDrain both tanks, remove the batteries and rear squeegee, tip the machine over and open the drive motor access cover. Carbon brushes are replaced as sets.
FOR SAFETY: Before leaving or servicing machine, stop on level surface, turn off machine, remove key, and set parking brake if equipped.
FOR SAFETY: When servicing machine, Disconnect battery connection and charger cord before working on machine.
- Completely drain the solution tank and the recovery tank.
- Turn the key to the OFF position.
- Disconnect the battery cable from the machine.
- Remove the batteries from the machine.
FOR SAFETY: When servicing machine, avoid contact with battery acid, keep all metal objects off batteries, and use a hoist or adequate assistance when lifting batteries.
- Remove the rear squeegee from the machine.
- Position a protective blanket next to the side of the machine that will be tipped onto the floor.
- Carefully tip the machine onto the protective blanket.
- Remove the access cover from the drive motor.
- Remove the hardware securing the carbon brush in the drive motor.
- Remove the carbon brush from the drive motor.
- Use compressed air to clean any dust from inside the drive motor.
- Repeat previous steps to remove the remaining carbon brushes from the drive motor.
NOTE: Carbon brushes should be replaced as sets.
- Reinstall the removed carbon brushes / install the new carbon brushes into the drive motor in the reverse order of removal.
Parts for this job
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 86, used with permission. SES ref PF-6EIB-BVPK
SS500 9015517 (01-2018)Page 86 of 128
SERVICE
Cleaning systems
This page is blank in the manual.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 87, used with permission. SES ref PF-IJ2G-473B
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SERVICE
Remove / install the cylindrical scrub head assembly
In shortEmpty both tanks, remove the debris tray and brushes, lower the head, disconnect the batteries, then free the wiring, hoses, actuator and lift arms (continued on page 89). If you fit a different head, the machine must be reconfigured with the Service Diagnostics tool.
- Completely empty both the solution tank and the recovery tank.
FOR SAFETY: Before leaving or servicing machine, stop on level surface, turn off machine, remove key, and set parking brake if equipped.
- Turn the key to the OFF position and remove the key.
- Remove debris tray from the scrub head. Set the debris tray aside.
- Remove scrub brushes from the scrub head. Set the scrub brushes aside.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 88, used with permission. SES ref PF-JCWQ-GGEY
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SERVICE
- Turn ON the machine, completely lower the scrub head to the floor, turn OFF the machine, and remove the key.
- Disconnect the battery cables from the batteries.
FOR SAFETY: When servicing machine, Disconnect battery connection and charger cord before working on machine.
- Cut the cable ties from the main wire harness / brush motor connection and disconnect the main wire harness from the brush motors.
- Disconnect all solution supply hoses from the scrub head.
- Cut all wire ties securing the main wire harness to the scrub head and disconnect main wire harness connections from the brush drive motors.
- Remove the cotter pin and clevis pin securing the actuator to the head suspension spring bracket.
- Remove the cotter pins and clevis pins securing the head lift arms to the scrub head assembly.
- Remove the clevis pin and cotter pin securing the scrub head pivot to the head guide bracket.
- Reinstall the removed scrub head / install the new scrub head onto the machine in the reverse order of removal.
- If the removed scrub head was replaced with a different scrub head, reconfigure the machine for the new scrub head. See RECONFIGURING THE MACHINE AFTER NEW HARDWARE / OPTION INSTALLATION in this section of the manual.
Parts for this job
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 89, used with permission. SES ref PF-TKAT-AUF3
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SERVICE
Checking / adjusting the cylindrical scrub brush pattern
In shortChalk a flat floor, run the brushes for 20 seconds with the machine held still, and compare the two brush patterns. If they are tapered, adjust the idler plate (continued on page 91). Use a new set of brushes for this check.
NOTE: This procedure must be completed using a new set of brushes. Performing procedure with worn brushes may result in uneven brush wear and / or shortened brush life.
- Apply chalk to a flat, level surface.
NOTE: The main wire harness must be disconnected from the transaxle motor so the machine remains stationary during the brush pattern test.
- Turn off ec-H2O system (if equipped).
- Turn off the solution flow.
- Adjust the speed dial to the lowest setting.
- Position the scrubber so the brushes are over the chalked area.
- Lower the scrub head into the chalked area on the floor.
- Place the directional lever into the reverse position.
- Firmly hold the machine so it does not move and squeeze the bail handle to activate the scrub brushes. Hold the bail handle for 20 seconds and then release the bail handle.
Note: Parking brake can be used to hold machine in place if machine is equipped with the optional parking brake.
- Raise the scrub head and pull the machine away from the pattern test area.
- Observe the brush pattern. If the brush pattern is the same width across the entire length of each brush and both brushes are the same width, no adjustment is necessary.
- If the brush patterns are tapered, proceed to the following steps to adjust the patterns.
- Unfasten yellow latch and remove the idler plate assembly from the scrub head.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 90, used with permission. SES ref PF-JSBR-PRW3
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SERVICE
- Remove the skirt cover from the idler plate.
- Adjust the brush taper. Turn the idler plug clockwise to increase the taper at that end of the brush and counterclockwise to decrease the taper at that end of the brush.
- Reinstall the skirt cover onto the idler plate and reinstall the idler plate assembly onto the scrub head.
- If necessary, repeat step 12 through step 15 to adjust the taper for the other brush (idler plate is located on the other side of the scrub head).
- Reapply chalk and repeat step 5 through step 16 as necessary.
- If the brushes are not the same width front-to-rear, proceed to the following steps.
- Loosen the hex screw securing the leveler screw into place on the scrub head pivot.
- Adjust the leveler screw up to decrease the rear brush width and down to increase the rear brush width.
- Tighten the previously loosened hex screw.
- Recheck the brush width. Repeat step 19 through step 22 as necessary.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 91, used with permission. SES ref PF-ONWC-6G7K
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SERVICE
Removing / installing the cylindrical scrub head motor carbon brushes
In shortRemove the retaining band latch, pull the carbon brush assembly from each side of the brush motor, and replace the brushes as a set.
FOR SAFETY: Before leaving or servicing machine, stop on level surface, turn off machine, remove key, and set parking brake if equipped.
FOR SAFETY: When servicing machine, Disconnect battery connection and charger cord before working on machine.
- Turn the key to the OFF position.
- Disconnect the battery cables from the batteries.
- Loosen and remove the latch securing the retaining band to the brush motor.
- Carefully pull the carbon brush from the cylindrical brush motor.
- Remove the pan screw securing the carbon brush assembly in the cylindrical brush motor and remove the carbon brush assembly from the machine.
- Use compressed air to clean any dust from inside the motor.
- Repeat previous steps to remove the carbon brush located on the other side of the cylindrical brush motor.
NOTE: Carbon brushes should be replaced as sets.
- Reinstall the removed carbon brushes / install the new carbon brushes into the cylindrical brush motor in the reverse order of removal.
Parts for this job
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 92, used with permission. SES ref PF-MCKM-S6JA
SS500 9015517 (01-2018)Page 92 of 128
SERVICE
Cleaning systems
This page is blank in the manual.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 93, used with permission. SES ref PF-MR4R-WT2S
SS500 9015517 (01-2018)Page 93 of 128
SERVICE
Remove / install the disk scrub head assembly
In shortEmpty both tanks, remove the brushes, lower the head and turn the machine off, then disconnect the batteries (continued on page 95).
- Completely empty both the solution tank and the recovery tank.
FOR SAFETY: Before leaving or servicing machine, stop on level surface, turn off machine, remove key, and set parking brake if equipped.
- Turn the key to the OFF position and remove the key.
- Remove scrub brushes from the scrub head. Set the scrub brushes aside.
- Turn ON the machine, completely lower the scrub head to the floor, turn OFF the machine, and remove the key.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 94, used with permission. SES ref PF-PIAX-NYGJ
SS500 9015517 (01-2018)Page 94 of 128
SERVICE
- Disconnect the battery cables from the batteries.
FOR SAFETY: When servicing machine, Disconnect battery connection and charger cord before working on machine.
- Cut the cable ties from the main wire harness / brush motor connection and disconnect the main wire harness from the brush motors.
- Disconnect all solution supply hoses from the scrub head.
- Remove the cotter pin and clevis pin securing the actuator to the head suspension spring bracket.
- Remove the cotter pins and clevis pins securing the head lift arms to the scrub head assembly.
- Remove the clevis pin and cotter pin securing the scrub head pivot to the head guide bracket.
- Reinstall the removed scrub head / install the new scrub head onto the machine in the reverse order of removal.
- If the removed scrub head was replaced with a different scrub head, reconfigure the machine for the new scrub head. See RECONFIGURING THE MACHINE AFTER NEW HARDWARE / OPTION INSTALLATION in this section of the manual.
Parts for this job
Removing / installing the disk scrub head motor carbon brushes
FOR SAFETY: Before leaving or servicing machine, stop on level surface, turn off machine, remove key, and set parking brake if equipped.
FOR SAFETY: When servicing machine, Disconnect battery connection and charger cord before working on machine.
- Turn the key to the OFF position.
- Disconnect the battery cable from the machine.
- Remove the access plug from the motor and slide the terminal boot from the terminal.
- Remove the hex nut securing the cable to the brush motor.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 95, used with permission. SES ref PF-KRAE-6RXA
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SERVICE
- Carefully pull the carbon brush assembly from the brush motor.
- Use compressed air to clean any dust from inside the motor.
- Repeat previous steps to remove the carbon brush located on the other side of the disk brush motor.
NOTE: Carbon brushes should be replaced as sets.
- Reinstall the removed carbon brushes / install the new carbon brushes into the disk brush motor in the reverse order of removal.
Parts for this job
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 96, used with permission. SES ref PF-BV6D-5GDN
SS500 9015517 (01-2018)Page 96 of 128
SERVICE
Cleaning systems
This page is blank in the manual.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 97, used with permission. SES ref PF-OXSQ-AWSA
SS500 9015517 (01-2018)Page 97 of 128
SERVICE
Remove / install the orbital scrub head assembly
In shortEmpty both tanks and disconnect the batteries, then free the wiring and hoses and detach the head (continued on page 99).
- Completely empty both the solution tank and the recovery tank.
FOR SAFETY: Before leaving or servicing machine, stop on level surface, turn off machine, remove key, and set parking brake if equipped.
- Turn the key to the OFF position and remove the key.
- Disconnect the battery cables from the batteries.
FOR SAFETY: When servicing machine, Disconnect battery connection and charger cord before working on machine.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 98, used with permission. SES ref PF-47ID-3PWK
SS500 9015517 (01-2018)Page 98 of 128
SERVICE
- Cut the cable ties from the main wire harness / brush motor connection and disconnect the main wire harness from the brush motors.
- Disconnect all solution supply hoses from the scrub head.
- Remove the cotter pin and clevis pin securing the actuator to the head suspension spring bracket.
- Remove the hex screws and flat washers securing the head lift bracket to the scrub head.
- Reconnect the battery cable to the machine.
- Turn on the machine, allow the scrub head to completely raise, and turn off the machine.
- Disconnect the battery cable from the machine.
- Remove the batteries from the machine.
FOR SAFETY: When servicing machine, avoid contact with battery acid, keep all metal objects off batteries, and use a hoist or adequate assistance when lifting batteries.
- Lift the machine from the scrub head.
- Proceed to REMOVE / INSTALL THE LOWER ORBITAL HEAD ISOLATORS if replacing the lower isolators.
- Reinstall the removed scrub head / install the new scrub head onto the machine in the reverse order of removal.
- If the removed scrub head was replaced with a different scrub head, reconfigure the machine for the new scrub head. See RECONFIGURING THE MACHINE AFTER NEW HARDWARE / OPTION INSTALLATION in this section of the manual.
Parts for this job
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 99, used with permission. SES ref PF-GMTA-5WEL
SS500 9015517 (01-2018)Page 99 of 128
SERVICE
Removing / installing the orbital scrub head motor carbon brushes
In shortRemove the front scrub head cover and the motor cap, then pull the carbon brush assembly from each side of the motor. Carbon brushes are replaced as sets.
FOR SAFETY: Before leaving or servicing machine, stop on level surface, turn off machine, remove key, and set parking brake if equipped.
FOR SAFETY: When servicing machine, Disconnect battery connection and charger cord before working on machine.
- Turn the key to the OFF position.
- Disconnect the battery cable from the machine.
- Remove the front scrub head cover from the machine.
- Remove the cap from the motor.
- Remove the pan screw and spring clip securing the carbon inside the motor and carefully pull the carbon brush assembly from the brush motor.
- Use compressed air to clean any dust from inside the motor.
- Repeat previous steps to remove the carbon brush located on the other side of the disk brush motor.
NOTE: Carbon brushes should be replaced as sets.
- Reinstall the removed carbon brushes / install the new carbon brushes into the disk brush motor in the reverse order of removal.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 100, used with permission. SES ref PF-THSW-5XPJ
SS500 9015517 (01-2018)Page 100 of 128
SERVICE
Service
This page is blank in the manual.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 101, used with permission. SES ref PF-3HR7-4NPA
SS500 9015517 (01-2018)Page 101 of 128
SERVICE
Remove / install the lower orbital head isolators
In shortThe drawing shows how the orbital head is assembled. The steps are on page 103.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 102, used with permission. SES ref PF-XP3Q-C3NE
SS500 9015517 (01-2018)Page 102 of 128
SERVICE
FOR SAFETY: Before leaving or servicing machine, stop on level surface, turn off machine, remove key, and set parking brake if equipped.
- Remove the orbital scrub head assembly from the machine. See REMOVE / INSTALL THE ORBITAL SCRUB HEAD ASSEMBLY in this section of the SERVICE MANUAL.
- Place the scrub head on a work bench.
- Loosen the nyloc nuts securing the lower isolators to the orbital scrub head assembly.
- Turn the orbital scrub head assembly upside down and remove the pads. Set the pads aside.
- Remove hardware securing the lower plate to the lower isolators.
- Loosen the set screw securing the concentric motor weight to the motor shaft.
- Remove the lower plate and the lower isolators.
- Install the lower orbital head isolators in the reverse order in which they were removed.
Parts for this job
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 103, used with permission. SES ref PF-3ERP-R67U
SS500 9015517 (01-2018)Page 103 of 128
SERVICE
Removing / installing the vacuum fan
In shortDrain the recovery tank, disconnect the batteries and lift the recovery tank open to reach the vacuum fan (continued on page 105).
FOR SAFETY: Before leaving or servicing machine, stop on level surface, turn off machine, remove key, and set parking brake if equipped.
FOR SAFETY: When servicing machine, Disconnect battery connection and charger cord before working on machine.
- Completely drain the recovery tank.
- Turn the key to the OFF position.
- Disconnect the battery cables from the batteries.
- Lift the recovery tank completely open.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 104, used with permission. SES ref PF-HP6R-PXIB
SS500 9015517 (01-2018)Page 104 of 128
SERVICE
- Cut the zip tie securing the main wire connections to the vacuum fan and disconnect the main wire harness from the vacuum fan.
- Remove hardware securing the vacuum fan to the machine.
- Remove the vacuum fan assembly from the machine.
- Cut the cable tie securing the vacuum fan / exhaust muffler to the vacuum fan mount.
- Separate the vacuum fan from the vacuum fan mount bracket.
- Install the new vacuum fan onto the mount bracket. Be sure the vibration isolators are completely inserted into the vacuum fan.
- Install new vacuum fan assembly / reinstall the removed vacuum fan assembly in the reverse order of removal.
Parts for this job
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 105, used with permission. SES ref PF-6HDW-BTD6
SS500 9015517 (01-2018)Page 105 of 128
SERVICE
Removing the vacuum fan carbon brushes
In shortTake the vacuum fan out of the machine, open the motor cover and lift out the carbon brushes. Replace brushes that are stuck or shorter than 0.375 in (10 mm), and always replace them as a set.
- Remove the vacuum fan from the machine. See REMOVING / INSTALLING THE VACUUM FAN in this section manual.
- Remove hardware securing the vacuum fan cover assembly to the motor.
- Loosen the carbon brush mounting hardware.
- Lift up to release and remove carbon brushes.
NOTE: Carbon brushes should be replaced as sets.
Installing carbon brushes
FOR SAFETY: Before leaving or servicing machine, stop on level surface, turn off machine, set parking brake, and remove key.
- Inspect carbon brushes. Replace carbon brushes if they are stuck or are less than 0.375 in (10 mm) in length.
NOTE: Carbon brushes should be replaced as sets.
- Use a stone to clean the commutator and then use compressed air to clean any dust from inside the motor.
- Reinstall the vacuum fan onto the machine. See REMOVING / INSTALLING THE VACUUM FAN in this section of manual.
Parts for this job
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 106, used with permission. SES ref PF-VKU2-TRRE
SS500 9015517 (01-2018)Page 106 of 128
SERVICE
Service
This page is blank in the manual.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 107, used with permission. SES ref PF-NCJH-WWZV
SS500 9015517 (01-2018)Page 107 of 128
SERVICE
Removing / installing the water solenoid valve
In shortDrain both tanks, disconnect and remove the batteries, remove the rear squeegee and tip the machine over to reach the valve (continued on page 109).
FOR SAFETY: Before leaving or servicing machine, stop on level surface, turn off machine, remove key, and set parking brake if equipped.
FOR SAFETY: When servicing machine, Disconnect battery connection and charger cord before working on machine.
- Completely drain both the recovery tank and the solution tank.
- Turn the key to the OFF position.
- Disconnect the battery cables from the batteries.
- Remove the batteries from the machine and set the batteries aside.
FOR SAFETY: When servicing machine, avoid contact with battery acid, keep all metal objects off batteries, and use a hoist or adequate assistance when lifting batteries.
- Remove the rear squeegee assembly from the machine. Set the rear squeegee assembly aside and hardware aside.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 108, used with permission. SES ref PF-6ONT-5GVC
SS500 9015517 (01-2018)Page 108 of 128
SERVICE
- Position a protective blanket next to the side of the machine that will be tipped onto the floor.
NOTE: Do Not allow the machine to drop when tipping it onto the protective blanket. The scrub head and other components could be damaged if machine is allowed to drop. If necessary, remove the scrub head from the machine before tipping the machine onto its side.
- Carefully tip the machine onto the protective blanket.
- Disconnect hoses as necessary to access the transaxle assembly.
- Disconnect all hoses from the water solenoid valve.
- Disconnect the main wire harness from the water solenoid valve.
- Remove the water solenoid valve from the machine.
- Reinstall the interface module / install the new water solenoid valve in reverse order of disassembly.
Parts for this job
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 109, used with permission. SES ref PF-ZJ2O-RAAD
SS500 9015517 (01-2018)Page 109 of 128
SERVICE
Connecting hoses to PTC (push-to-connect) fittings
In shortCut the tube square, push it fully into the fitting, then pull on it to confirm it is held. Test for leaks before you leave the site.
- Cut the tube square. The outer diameter of the tubing must be free of score marks, burrs, or sharp edges.
- Insert tube into the fitting. The fitting will grip the hose before it seals.
- Push into the tube stop. The stainless steel teeth inside the collet firmly hold the tube in position and the o-ring provides a permanent leak-proof seal.
- Pull on the fitting to ensure the hose connection is secure.
- Test the fitting / hose connections for leaks prior to leaving the site.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 110, used with permission. SES ref PF-4TRY-UZHX
SS500 9015517 (01-2018)Page 110 of 128
SERVICE
Disconnect hoses from PTC (push-to-connect) fittings
- Push the collet squarely in against face of fitting to release the hose from the fitting. Continue to hold the collet held in against the fitting and pull the hose from the fitting.
NOTE: Be sure there is no pressure in the system and the system is emptied of all solution before disconnecting hose(s) from the fitting.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 111, used with permission. SES ref PF-SZ6O-K5XT
SS500 9015517 (01-2018)Page 111 of 128
SERVICE
Control modules
Removing / installing the electrical mounting bracket / relays
In shortThe drawing shows the relays, drive module and snap action push switch on the electrical mounting bracket. The steps are on page 113.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 112, used with permission. SES ref PF-3KFJ-5N6R
SS500 9015517 (01-2018)Page 112 of 128
SERVICE
FOR SAFETY: Before leaving or servicing machine, stop on level surface, turn off machine, remove key, and set parking brake if equipped.
FOR SAFETY: When servicing machine, Disconnect battery connection and charger cord before working on machine.
- Completely drain the recovery tank.
- Turn the key to the OFF position.
- Disconnect the battery cables from the batteries.
FOR SAFETY: When servicing machine, avoid contact with battery acid, keep all metal objects off batteries, and use a hoist or adequate assistance when lifting batteries.
- Remove the hardware securing the electrical mounting bracket to the machine.
NOTE: To avoid damaging electronic components, a static ground strap must be worn at all times while handling circuit boards / control modules. Attach the other end of the static ground strap to the machine chassis.
- Carefully pull the electrical mounting bracket away from the machine.
NOTE: If necessary, remove the two rear batteries and / or cut the cable ties securing the shunt / cables to the electrical mounting bracket to ease accessing relays on the electrical mounting bracket.
- Disconnect cable connections from the relay(s) and / or drive module being replaced.
- Replace relay(s) and / or drive module as necessary.
- Connect cable connections to replaced relay(s) and / or drive module.
- Reinstall the electrical mounting bracket in reverse order of disassembly.
Parts for this job
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 113, used with permission. SES ref PF-XLXR-BDAS
SS500 9015517 (01-2018)Page 113 of 128
SERVICE
Removing / installing the interface module
In shortDisconnect the batteries, wear a static ground strap, and lower the console cover to reach the instrument panel and interface module (continued on page 115). A new interface module must be programmed afterward.
FOR SAFETY: Before leaving or servicing machine, stop on level surface, turn off machine, remove key, and set parking brake if equipped.
FOR SAFETY: When servicing machine, Disconnect battery connection and charger cord before working on machine.
- Turn the key to the OFF position.
- Disconnect the battery cables from the batteries.
NOTE: To avoid damaging electronic components, a static ground strap must be worn at all times while handling circuit boards / control modules. Attach the other end of the static ground strap to the machine chassis.
- Remove the button screws securing the lower console cover to the machine and carefully lower the lower console cover away from the console.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 114, used with permission. SES ref PF-VN3O-D6A5
SS500 9015517 (01-2018)Page 114 of 128
SERVICE
- Remove the hardware securing the instrument panel to the console.
- Lift up on the bottom of the panel and slide downward to remove.
- Disconnect all electrical connections from the interface module.
- Remove the interface module from the machine.
- Reinstall the interface module / install the new interface module in reverse order of disassembly.
- If a new interface module was installed, the new interface module must be programmed for the machine onto which it was installed. See PROGRAMMING A NEW INTERFACE MODULE in this section of the manual.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 115, used with permission. SES ref PF-QPAP-MWDV
SS500 9015517 (01-2018)Page 115 of 128
SERVICE
Removing / installing the bail switch, speed potentiometer, or directional switch
In shortThe drawing shows how the operator console comes apart. The steps start on page 117.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 116, used with permission. SES ref PF-4BPQ-FDQ6
SS500 9015517 (01-2018)Page 116 of 128
SERVICE
FOR SAFETY: Before leaving or servicing machine, stop on level surface, turn off machine, remove key, and set parking brake if equipped.
FOR SAFETY: When servicing machine, Disconnect battery connection and charger cord before working on machine.
- Turn the key to the OFF position.
- Disconnect the battery cables from the batteries.
- Remove the button screws securing the lower console cover to the machine and carefully lower the lower console cover away from the console.
- Remove the pan screws and flat washers securing the instrument panel to the console.
- Carefully separate the touch panel from the console.
- Disconnect all wire harness / electrical connections from the instrument panel. Set the instrument panel aside.
- Remove the cover from the console.
- Remove the pan screws securing the operator console to the machine.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 117, used with permission. SES ref PF-7AN2-HGQA
SS500 9015517 (01-2018)Page 117 of 128
SERVICE
- Lift up and forward to remove the operator console from the machine.
- Remove the speed range dial and set aside. If replacing the potentiometer or directional switch, remove the nut securing the potentiometer or directional switch.
- Remove the bail handle from the bottom control housing.
- Remove the self tap screws from the front of the operator console.
- Remove the self tap screws from rear of the operator console and separate the console assembly.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 118, used with permission. SES ref PF-VAV4-ENCT
SS500 9015517 (01-2018)Page 118 of 128
SERVICE
- Release the bail return spring, rotate the bail handle shaft toward the bottom of the operator console, and slide the bail handle shaft to the side to remove.
- Remove the bail switch.
- Reinstall the bail switch, speed potentiometer, and / or directional switch in the reverse order of disassembly.
Parts for this job
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 119, used with permission. SES ref PF-TQ2L-6LG3
SS500 9015517 (01-2018)Page 119 of 128
SERVICE
Removing / installing the on-board battery charger
In shortDisconnect the batteries, then remove the charger cover bracket and cable cover to free the charger (continued on page 121).
FOR SAFETY: Before leaving or servicing machine, stop on level surface, turn off machine, remove key, and set parking brake if equipped.
FOR SAFETY: When servicing machine, Disconnect battery connection and charger cord before working on machine.
- Turn the key to the OFF position.
- Disconnect the battery cables from the batteries.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 120, used with permission. SES ref PF-TCCW-DMMO
SS500 9015517 (01-2018)Page 120 of 128
SERVICE
- Remove the charger cover bracket from the machine.
- Remove the SEMS hex screw securing the charger cable cover to the machine and position the charger cable cover down away from the on-board charger.
- Disconnect the cables from the on-board battery charger.
- Remove the on-board battery charger from the machine.
- Reinstall the on-board battery / install the new on-board battery in reverse order of disassembly.
Parts for this job
NOTE: The on-board charger can be programmed for multiple battery configurations. This configuration data is stored in the interface module and will automatically configure a replacement battery charger once installed and following a power-up cycle. Reprogramming is required if the interface module has been replaced, or if a different type of battery is used (other than factory-installed equipment). (See SERVICE DIAGNOSTICS TOOL section in this manual)
Machine must be configured through separate configuration software via a mini-USB programming port on the operator console. (See SERVICE DIAGNOSTICS TOOL in this section of the manual)
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 121, used with permission. SES ref PF-S4KY-FA6P
SS500 9015517 (01-2018)Page 121 of 128
SERVICE
Options
ABW (automatic battery watering) system maintenance (Trojan® Battery option)
In shortThe drawing shows the parts of the automatic battery watering system. Troubleshooting steps for air in the system, pump time-out, overfilling and the liquid level sensor are on pages 123 to 125.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 122, used with permission. SES ref PF-ADJR-AF4F
SS500 9015517 (01-2018)Page 122 of 128
SERVICE
FOR SAFETY: Before leaving or servicing machine, stop on level surface, turn off machine, remove key, and set parking brake if equipped.
FOR SAFETY: When servicing machine, Disconnect battery connection and charger cord before working on machine.
ABW pump not priming (air in the system)
- Turn the key to the OFF position.
- Disconnect the hoses at the quick disconnect connector.
- Turn the key to the ON position.
- Observe for water to begin pumping out from the hoses.
- If water is pumping from the hoses, turn the key to the OFF position, reconnect the hoses, turn key to ON position, and observe panel for a fault code. If there is no fault code, the machine is again ready for use.
If there is a fault code, proceed to the following steps to eliminate air from the ABW system. - Remove the drain cap from the molded hose to purge air from the system. Allow the water to drain until there is a steady stream. The drain cap is located behind the front scrub head cover and directly below the ABW tank.
- Reinstall the drain cap onto the molded hose.
- Add distilled water to the battery watering system tank.
- Verify pump is functioning and the fault is cleared.
NOTE: If necessary, can also perform freeze protection procedure to start over with an empty tank. See FREEZE PROTECTION in MAINTENANCE section of this manual.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 123, used with permission. SES ref PF-AZBU-IE6D
SS500 9015517 (01-2018)Page 123 of 128
SERVICE
ABW pump is timing out (1 minute)
- Turn the key to the OFF position.
- Check for water / electrolyte residue on top of batteries and in the battery tray.
- Identify the source of the leaks. Check all ABW system hoses, connections, fittings, and battery caps for leaks / damage. Ensure battery caps are properly tightened.
- Replace damaged / worn fittings, hoses, and battery caps as necessary.
- Clean all water / electrolyte from the tops of the batteries and from inside battery tray.
- Add distilled water to the battery watering system tank.
- Turn the key to the ON position.
- Verify the ABW pump is functioning and the fault is cleared.
ABW overfills the batteries
- Turn the key to the OFF position.
- Inspect the tops of the batteries and battery tray for water / electrolyte residue.
- Ensure all battery vent caps are snuggly tightened.
- Replace the vent cap if it still leaks after tightening.
- Clean all water / electrolyte from the tops of the batteries and from inside battery tray.
- Add distilled water to the battery watering system tank.
- Turn the key to the ON position.
- Verify ABW pump is functioning properly and the fault is cleared.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 124, used with permission. SES ref PF-LTDV-MFOP
SS500 9015517 (01-2018)Page 124 of 128
SERVICE
Replacing the ABW liquid level sensor
- Turn the key to the OFF position.
- Disconnect the battery cables from the batteries.
- Carefully lift the tank from the machine.
- If necessary empty the solution from the tank.
- Disconnect the main wire harness from the liquid level sensor.
- Remove the liquid level sensor from the tank.
- Reinstall the liquid level sensor in reverse order of disassembly.
- Add distilled water to the battery watering system tank.
- Reconnect the battery cables to the batteries.
- Turn the key to the ON position.
- Verify the fault is cleared.
Parts for this job
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 125, used with permission. SES ref PF-FJNZ-NIMA
SS500 9015517 (01-2018)Page 125 of 128
SERVICE
Removing / installing the ec-H2O pump (option)
In shortDrain both tanks, remove the batteries and rear squeegee, tip the machine over and remove the rear frame to reach the pump (continued on page 127).
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 126, used with permission. SES ref PF-F64N-XUD4
SS500 9015517 (01-2018)Page 126 of 128
SERVICE
FOR SAFETY: Before leaving or servicing machine, stop on level surface, turn off machine, remove key, and set parking brake if equipped.
FOR SAFETY: When servicing machine, Disconnect battery connection and charger cord before working on machine.
- Completely drain the solution tank and the recovery tank.
- Turn the key to the OFF position.
- Disconnect the battery cables from the batteries.
- Remove the batteries from the machine.
FOR SAFETY: When servicing machine, avoid contact with battery acid, keep all metal objects off batteries, and use a hoist or adequate assistance when lifting batteries.
- Remove the rear squeegee assembly from the machine.
- Position a protective blanket next to the side of the machine that will be tipped onto the floor.
- Carefully tip the machine onto the protective blanket.
- Remove the hex screws securing the rear frame to the machine.
- Carefully pull the rear frame from the machine.
- Disconnect the main wire harness from the pump.
- Disconnect all hoses from the pump.
- Loosen the hose clamp and remove the pump from the rear frame.
- Reinstall the pump in the reverse order of disassembly.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 127, used with permission. SES ref PF-UTZP-O63Z
SS500 9015517 (01-2018)Page 127 of 128
SERVICE
Service
This page is blank in the manual.
Source: Nobles Speed Scrub 500 Service Manual 9015517 Rev. 01 (01-2018), page 128, used with permission. SES ref PF-ISZL-DRXO
SS500 9015517 (01-2018)Page 128 of 128
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