Nobles Speed Scrub 15 (battery) Operator Manual

SPEED SCRUB® 15 in BATTERY FLOOR SCRUBBER

OPERATOR MANUAL‌‌​⁠​​​⁠⁠​​​‌⁠⁠‌‌​​⁠​​​​​​​‌​​​‌​⁠​​​⁠‍‌‍⁠​‍‌​⁠‌‌​‍‍‌‍‌⁠‌​​⁠

Models:

9008637 - Speed Scrub 15 , AGM Battery
9008640 - Speed Scrub 15, Lithium- Ion Battery

Insta-Adjust™ Handle
Hygenic™ Cleanable Tanks
Duramer™ Tank Construction

9008731
Rev. 01 (10-2018)

For the latest Parts manuals and other language Operator manuals, visit: www.nobles.com/manuals

This manual is furnished with each new model.
It provides necessary operation and maintenance instructions.‌‌​⁠​​​⁠⁠​​​‌⁠⁠‌‌​​⁠​​​​​​​‍​​​‌​⁠​​​‍‌⁠‌‌‍⁠‌‍‌‍‍⁠⁠‍​⁠⁠⁠‌​​​

This machine will provide excellent service. However, the best results will be obtained at minimum costs if:

• The machine is operated with reasonable care according to instructions provided.
• The machine is maintained regularly - per the machine maintenance instructions provided.
• The machine is maintained with manufacturer-supplied or equivalent parts.

To view, print or download manuals online visit www.nobles.com/manuals

Use the Parts Manual to order replacement parts.

UNCRATING MACHINE: Carefully check carton for signs of damage. Report damages at once to carrier.

Tennant Company
PO Box 1452
Minneapolis, MN 55440 USA
Tel: (800) 553-8033
www.nobles.com

Specifications and parts are subject to change without notice. Original Instructions. Copyright © 2011-2018 Tennant Company. All rights reserved.

MACHINE DATA

Please fill out at time of installation for future reference.

• Model No. -
• Serial No. -
• Sales Rep. -
• Sales Rep. phone no. -
• Customer Number -
• Installation Date -

TABLE OF CONTENTS

SAFETY PRECAUTIONS

This machine is intended for commercial use. It is designed exclusively to scrub hard floors in an indoor environment and is not constructed for any other use. Use only recommended brushes and commercially approved floor cleaners intended for machine application.‌‌​⁠​​​⁠⁠​​​‌⁠⁠‌‌​​⁠​​​​​​​⁠​​​‌​⁠​​‌‌​​⁠‌‌‍⁠‌⁠‌​⁠​​⁠‍‍‌⁠​‍‍

All operators must read, understand and practice the following safety precautions.

The following warning alert symbol and the “FOR SAFETY” heading are used throughout this manual as indicated in their description:

FOR SAFETY: To identify actions which must be followed for safe operation of equipment.

The following safety precautions signal potentially dangerous conditions to the operator or equipment.

This machine is not equipped with explosion proof motors. The electric motors 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.

If the charger 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.

• Disconnect Battery Cable and Charger Cord Before Servicing.

IRIS Telemetry (Option) - 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:

1. Do not operate machine:
   • Unless trained and authorized.
   • Unless operator manual is read and understood.
   • Unless mentally and physically capable of following machine instructions.
   • In an area where flammable vapors/liquids or combustible dusts are present.
   • Outdoors.
   • If not in proper operating condition.
   • If battery emits an unusual odor. Move machine to a ventilated area and contact Customer Service immediately.
   • If battery is leaking any substance. Avoid contact with battery substance and contact Customer Service immediately.
   • If battery becomes excessively hot. Disconnect battery charger. Move machine to a ventilated area and contact Customer Service immediately.
2. Before operating machine:
   • Make sure all safety devices are in place and operate properly.
   • Wear non-slip shoes.
   • Follow safety guidelines concerning wet floors.
   • Follow mixing, handling and disposal instructions on chemical containers.
3. When operating machine:
   • Report machine damage or faulty operation immediately.
   • Do not allow children to play on or around machine.
   • If foam or liquid begins to leak from machine, immediately shut off machine.
   • Do not operate on inclines.
4. Before leaving machine:
   • Stop on level surface.
   • Turn the main power switch to the off position.

5. When servicing machine:
   • Stop on level surface.
   • Turn the main power switch to the off position.
   • Do not tilt machine back unless main power switch is turned off and tanks are empty.
   • Disconnect battery connections before working on machine.
   • Do not disconnect the 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.
   • The use of incompatible battery chargers may damage battery and potentially cause a fire hazard.
   • Wear protective gloves and eye protection when handling batteries or battery cables.
   • Avoid contact with battery acid.
   • Use manufacturer supplied or approved replacement parts.
   • All repairs must be performed by a qualified service person.
   • Avoid moving parts. Do not wear loose clothing or jewelry
   • Do not power spray or hose off machine. Electrical malfunction may occur.
   • Do not modify the machine from its original design.
6. When transporting machine:
   • Turn the main power switch to the off position.
   • Get assistance or use a mechanical lift when lifting machine.
   • Do not wheel up or down stairs.
   • Do not tilt on rear casters or wheels.
   • Use tie-down straps to secure machine when transporting by vehicle.

SAFETY LABELS

The safety labels appear on the machine in the locations indicated. Replace labels if they are missing or become damaged or illegible.‌‌​⁠​​​⁠⁠​​​‌⁠⁠‌‌​​⁠​​​​​​‌‌​​​‌​⁠​​‍⁠⁠‌​​⁠⁠‍‌​‍⁠​​​⁠⁠⁠⁠⁠‍‍​

MACHINE COMPONENTS

MACHINE OPERATION SYMBOLS

• Power On
• Power Off
• Battery Discharge Indicator
• Vacuum
• Vacuum Circuit Breaker
• Brush Circuit Breaker
• Battery Charging
• 2% (1°) Maximum Grade Level

MACHINE SETUP

INSTALLING BRUSH

1. Turn the main power switch to the (O) off position.

2. Raise the scrub head to the transport position by stepping on the scrub head lift pedal (Figure 1).

3. Remove the brush idler plate from the brush base. Turn the idler plate locking knob counter-clockwise to remove (Figure 2).

4. Connect the slotted end of the brush to the drive hub (Figure 3).

5. Connect the idler plate to the brush and reinstall the idler plate. Make sure the idler plate tabs engage the brush base and that the locking knob is secure (Figure 4).

FILLING SOLUTION TANK

1. Remove the solution tank from machine and carry tank to water source (Figure 5).
2. Fill the solution tank with 2.5 gal / 9.5 l of clean water (122°F / 50°C maximum temperature). Do not fill beyond the “MAX” fill label (Figure 6). Partially fill if unable to lift a full tank. A full tank weighs 26.5 lb.

3. Pour an approved low foaming cleaning detergent into the solution tank according to the mixing instructions on the bottle.

Contact your dealer for recommended cleaning detergents.‌‌​⁠​​​⁠⁠​​​‌⁠⁠‌‌​​⁠​​​​​​‍​​​​‌​⁠​​‍​‍‍​​‍‍‌⁠⁠​‌‌⁠⁠​⁠‌⁠​⁠‍‌

4. Replace the solution tank on the machine. Submerge the solution tank screen into solution and close the cover (Figure 7).

MACHINE OPERATION

PRE-OPERATION

1. IMPORTANT: To prevent vacuum system from clogging, sweep and dust-mop floor.
2. Make sure battery is charged.
3. Check that the brush and squeegee blades are installed.

SCRUBBING FLOORS

1. Pull the handle adjustment lever and adjust the handle to a comfortable operating height (Figure 8). Release the lever to lock the position.

2. Lower the scrub head to the floor by stepping on the transport release pedal (Figure 9).

3. Press the main power switch to the on ( I ) position (Figure 10).

4. Press the vacuum switch to the on ( I ) position (Figure 11).

5. To begin scrubbing, pull the start triggers and push or pull the machine in either direction (Figure 12).

6. To stop scrubbing, release the triggers and continue to move the machine to pick up all solution.
7. When scrubbing, view the water pickup from the recovery window (Figure 13). When the water pickup stops, stop scrubbing and empty the recovery tank.

8. For heavily soiled areas, use the double scrub method. First scrub the soiled area with the vacuum switch turned off then scrub the area a second time with vacuum switch turned on (Figure 15).

9. To transport machine from one room to another, raise the scrub head to the transport position and push the machine forward (Figure 16).

   DO NOT tilt machine on the rear wheels. Only use rear wheels to transport machine up and down a curb.‌‌​⁠​​​⁠⁠​​​‌⁠⁠‌‌​​⁠​​​​​​‍‍​​​‌​⁠​​​​⁠‌‌‍​‌‍⁠‌⁠​‌‌‍‍​⁠‍⁠‌‌‍

BATTERY DISCHARGE INDICATOR

The battery discharge indicator displays the charge level of the battery (Figure 17).

When the discharge level reaches the red zone, the machine will automatically shut down (Figure 17). Recharge battery at this time (See CHARGING BATTERY).

To prolong battery life, do not leave battery discharged for a lengthy period.

CIRCUIT BREAKERS

The machine is equipped with two resettable circuit breakers to protect the brush and vacuum motors from damage (Figure 18). If the brush or vacuum become obstructed, the circuit breaker will trip. To reset circuit breaker, turn off the main power switch, remove the obstruction then reset the circuit breaker button (Figure 18). If the circuit breaker does not reset immediately, allow the machine to cool.

HOUR METER

The hour meter records the number of total hours the machine has been powered on. Use the hour meter to record machine use and service history (Figure 19).

BATTERY

Your machine is equipped with either a 12V lithium-ion battery or a 12V sealed AGM lead acid battery. The battery does not require any maintenance other than routine charging.‌‌​⁠​​​⁠⁠​​​‌⁠⁠‌‌​​⁠​​​​​​‍⁠​​​‌​⁠​​⁠​​‍‍‍‍‌​‍⁠‍‍⁠⁠​‍⁠‌‍‌​‍‌

To convert a machine with an AGM battery to a Lithium-ion battery or a Lithium-ion battery to an AGM battery, a battery conversion kit is required.

Do not exchange battery types unless conversion kit is installed, machine and battery damage may result.

9008689 - AGM to Lithium-ion Battery Conversion Kit
9008688 - Lithium-ion to AGM Battery Conversion Kit

CHARGING BATTERY:

Only use the battery charger that is approved and supplied by Tennant (Fig. 21).

For battery charger operating instructions, refer to the User’s Manual supplied with the battery charger. The charger’s User’s Manual should remain with the battery charger at all times.

For Lithium-ion battery models, recharge battery after every use even if only slightly discharged.

For AGM battery models, only recharge battery after 20 minutes of use or more. This will prolong the life of the battery.

To Charge Battery:

1. Transport the machine to a ventilated area.
2. Park the machine on a flat, dry surface and turn the main power switch to the off position.
3. Remove the charging receptacle cover at the rear of the machine and plug the charger’s DC cord into the receptacle (Figure 22).

4. Connect the charger’s AC power supply plug into a properly grounded receptacle.

5. The charger will start automatically and begin the charging process until battery is fully charged. The charger’s three LEDs will display solid when fully charged.
   Maximum Charging Cycle:
   3 hours - Lithium-ion battery
   8 hours - AGM battery

6. After charging cycle has completed, turn charger off by disconnecting the AC power supply cord from electrical outlet. Then unplug DC charger plug from machine.

7. Replace the charging receptacle cover on the machine (Figure 22).

REPLACING BATTERY:

1. Park the machine on a level surface and turn the main power switch to the off position.
2. Remove battery compartment cover from machine by removing two screws at bottom of cover (Fig. 23).

3. Unfasten the battery support strap. Disconnect the red positive (+) cable first then black negative (- ) cable from battery. Carefully remove battery from machine.
4. Install new battery (Figure 24). Connect the black cables to negative (- ) terminal first then red cables to positive (+) terminal. Secure battery with support strap.

   On a lithium- ion battery, connect the female plug from battery to machine harness. This plug is the communication cable to the battery management system. The second plug (male) on the battery is not used.‌‌​⁠​​​⁠⁠​​​‌⁠⁠‌‌​​⁠​​​​​​⁠​​​​‌​⁠​​‍‍​‍⁠‌⁠‍‍‍‌‌‍‍⁠‍​⁠‍⁠‌‌‍‍

AGM Battery

Lithium- ion Battery

5. Dispose of old battery in an environmentally safe way according to your local regulations.
   Contact your local regulatory authorities for proper transporting and disposal instructions.
   Help preserve the environment – Recycle!

MACHINE MAINTENANCE

To keep the machine in good working condition, simply follow the machine’s maintenance procedures.‌‌​⁠​​​⁠⁠​​​‌⁠⁠‌‌​​⁠​​​​​​⁠‌​​​‌​⁠​​‍⁠‍⁠‍‌⁠‌⁠‌‌​‍⁠​⁠‍​⁠⁠‌‌‍‍

AFTER EACH USE

1. Empty the recovery tank and thoroughly rinse with clean water (Figure 25).

2. Recharge the battery (See CHARGING BATTERY) (Figure 26).

3. Raise the scrub head to the transport position to prevent flat spot on brush (Figure 27).

AFTER WEEKLY USE

1. Clean the vacuum shut-off float with damp cloth (Figure 28) and remove any debris buildup from vacuum intake screen (Figure 29).

2. Remove the brush and check for entangled debris (Figure 30). Replace brush if damaged or worn.

3. Tilt the machine back and clean the underside of the scrub head (Figure 31).

4. Wipe the squeegee blades (Figure 32). Replace the blades if worn or damaged. Remove any clogged debris inside both inlet openings.

5. Clean the machine with an all purpose cleaner and damp cloth (Figure 33).

6. Clean the solution hose screen (Figure 34).

VACUUM HOSE MAINTENANCE

To prevent debris buildup in vacuum system, flush vacuum hose as described below:‌‌​⁠​​​⁠⁠​​​‌⁠⁠‌‌​​⁠​​​​​​⁠‍​​​‌​⁠​​⁠⁠‍​⁠‍‌‌⁠⁠‍​⁠‍‌‍‌‍‌‌⁠‌‌​

1. Place machine over floor drain and turn the main power switch to the off position (Figure 35).

2. Place a dry towel over the vacuum intake screen to prevent water from entering vacuum motor (Figure 36).
3. With water turned off, insert a garden hose into the vacuum intake hose as shown (Figure 37).

4. Slowly turn on water to prevent back-splash if vacuum system is clogged. Increase water pressure to flush out debris buildup.

SQUEEGEE BLADE REPLACEMENT

Tilt the machine back to access the squeegee blades.‌‌​⁠​​​⁠⁠​​​‌⁠⁠‌‌​​⁠​​​​​​⁠⁠​​​‌​⁠​​​⁠⁠​‍‌​⁠‍‌‌⁠‌‌​⁠​‌⁠‍‌​⁠​

To remove the squeegee blades, lift the blade retainer clip and pull the blade from the channel (Figure 39).

For easy blade installation, the squeegee blades are color coded to match the scrub head blade channel (Figure 40).

To install blade, slide each blade into the appropriate channel until retainer clip engages blade (Figure 41). The squeegee blade ribs should face away from each other.

TRANSPORTING MACHINE

Before transporting machine, empty water from tanks and turn the main power switch to the off position.

To wheel machine from room to room, raise the scrub head to the transport position and push the machine forward (Figure 42).

DO NOT tilt machine on the rear wheels. Only use rear wheels to transport machine up and down a curb.

STORING MACHINE

Before storing machine, empty tanks and fully charge the battery.‌‌​⁠​​​⁠⁠​​​‌⁠⁠‌‌​​⁠​​​​​‌​​​​​‌​⁠​​​​‌​‍‍​​‌‌⁠​‌⁠‍‍‍‌​⁠‌⁠‌‍

Store the machine in an open, well- ventilated, dry and clean area less than 113°F/45°C in the upright position.

Raise the scrub head to the transport position.

If storing machine in freezing temperatures, make sure to purge all water from solution system.

To purge water from solution system, empty solution tank, and operate the machine as normal for approximately 15 seconds.

TROUBLESHOOTING

MACHINE SPECIFICATIONS

* Estimated coverage rates use the practical speed and empty/fill time standards from the 2004 ISSA Cleaning Times handbook.‌‌​⁠​​​⁠⁠​​​‌⁠⁠‌‌​​⁠​​​​​‌​‌​​​‌​⁠​​​‌​‌‌‌​⁠⁠​⁠‍⁠⁠⁠‍‌‌​‍⁠⁠‍‌

**Sounds levels (ISO 11201) as recommended by the American Association of Cleaning Equipment Manufactures (AACEM) and OSHA.

MACHINE DIMENSIONS