Tennant T12 Operator Manual

Protect the environment

Please dispose of packaging materials, used components such as batteries and fluids in an environmentally safe way according to local waste disposal regulations.

Always remember to recycle.

Machine data

Please fill out at time of installation for future reference.

Model No. -

Serial No. -

Installation Date -

The following precautions are used throughout this manual as indicated in their description:‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​​​‌‌​​​‌​‍⁠⁠‍⁠‍​‌⁠​​‌‍⁠⁠‍​‌‌​⁠‌‌‌‍‍‌

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.

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.

This machine may be equipped with technology that automatically communicates over the cellular network. If this 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.

1. Do not operate machine:
   • Unless trained and authorized.
   • Unless operator manual is read and understood.
   • Under the influence of alcohol or drugs.
   • While using a cell phone or other types of electronic devices.
   • Unless mentally and physically capable of following machine instructions.
   • With brake disabled.
   • If it is not in proper operating condition.
   • With pads or accessories not supplied or approved by Tennant. The use of other pads may impair safety.
   • In outdoor areas. This machine is for indoor use only.
   • In areas where flammable vapors/liquids or combustible dusts are present.
   • In areas that are too dark to safely see the controls or operate the machine unless operating / headlights are turned on.
   • In areas with possible falling objects unless equipped with overhead guard.
2. Before starting machine:
   • Check machine for fluid leaks.
   • Make sure all safety devices are in place and operate properly.
   • Check brakes and steering for proper operation.
   • Adjust seat and fasten seat belt (if equipped).

3. When using machine:
   • Use only as described in this manual.
   • Use brakes to stop machine.
   • Go slowly on inclines and slippery surfaces.
   • Do not scrub on ramp inclines that exceed 7% (4°) grade or transport (GVWR) on ramp inclines that exceed 14% (8°) grade.
   • Reduce speed when turning.
   • Keep all parts of body inside operator station while machine is moving.
   • Always be aware of surroundings while operating machine.
   • Use care when reversing machine.
   • Keep children and unauthorized persons away from machine.
   • Do not carry passengers on any part of the machine.
   • Always follow safety and traffic rules.
   • Report machine damage or faulty operation immediately.
   • Follow mixing, handling and disposal instructions on chemical containers.
   • Follow site safety guidelines concerning backup alarms.
   • Follow site safety guidelines concerning wet floors.
4. Before leaving or servicing machine:
   • Stop on level surface.
   • Turn off machine and remove key.
5. When servicing machine:
   • All work must be done with sufficient lighting and visibility.
   • Keep work area well ventilated.
   • Avoid moving parts. Do not wear loose clothing, jewelry and secure long hair.
   • Block machine tires before jacking machine up.
   • Jack machine up at designated locations only. Support machine with jack stands.
   • Use hoist or jack that will support the weight of the machine.
   • Do not push or tow the machine without an operator in the seat controlling the machine.
   • Do not power spray or hose off machine near electrical components.
   • Disconnect battery connections and charger cord before working on machine.
   • Do not pull on battery charger cord to unplug. Grasp plug at outlet and pull.
   • Do not use incompatible battery chargers as this may damage battery packs and potentially cause a fire.

• Inspect charger cord regularly for damage.
• Do not disconnect the off-board charger’s DC cord from the machine receptacle when the charger is operating. Arcing may result. If the charger must be interrupted during charging, disconnect the AC power supply cord first.
• Avoid contact with battery acid.
• Keep all metal objects off batteries.
• Use a non-conductive battery removal device.
• Use a hoist and adequate assistance when lifting batteries.
• Battery installation must be done by trained personnel.
• Follow site safety guidelines concerning battery removal.
• All repairs must be performed by a trained service mechanic.
• Do not modify the machine from its original design.
• Use Tennant supplied or approved replacement parts.
• Wear personal protective equipment as needed and where recommended in this manual.

6. When using Lithium-ion Battery Model:
   • Battery service to be performed by Tennant Service only (Lithium Case Battery Only).
   • Battery installation requires a specific service kit which includes a hoisting strap and proper lifting instructions. Contact Tennant Service (Lithium Case Battery Only).
   • Do not attempt to lift battery by hand or by any other unauthorized method (Lithium Case Battery Only).
   • Do not disassemble or mistreat battery. Do not tear seal tape or will void warranty (Lithium Case Battery Only).

• Lithium batteries are designed exclusively for specific Tennant machine applications. Do not install battery pack in unapproved machines.
• Dispose of battery in accordance with local regulations. Contact Tennant Service.
• Contact Tennant Service or your local regulatory authorities for proper transporting instructions of lithium-ion batteries.
• Disconnect battery cable connector, battery management system (BMS) connector and charger cord before working on machine.
• Use only OEM approved battery charger supplied with lithium-ion battery.
• Do not expose battery to temperatures below −22°F (−30°C), above 140°F (60°C).
• Do not use machine immediately after long-term extreme temperature storage. Before use, return battery module temperature range to 50°F (10°C)~95°F (35°C)
• Do not operate or store battery in hazardous environment (electrically charged, humidity, extreme temperatures and magnetic fields).
• Do not expose battery to flame or plasma.
• Do not drop, crush or subject battery to impact, as it may cause battery to heat up or catch fire.
• Do not put battery in fire or water to avoid battery explosion.
• Do not touch battery with wet hand, avoid electric shock.
• Stop using or charging the battery immediately if battery has abnormal temperature, leakage or other abnormal conditions.

7. When loading/unloading machine onto/off truck or trailer.
   • Drain tanks before loading machine.
   • Lower scrub head and squeegee before tying down machine.
   • Turn off machine and remove key.
   • Use ramp, truck or trailer that will support the weight of the machine and operator.
   • Do not load/unload on ramp inclines that exceed 20% (11°) grade.
   • Use winch. Do not push the machine onto/off the truck or trailer unless the load height is 15 in (380 mm) or less from the ground.
   • Block machine tires.
   • Tie machine down to truck or trailer.

Battery specifications

Six 6-volt deep cycle lead acid batteries.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​​‌​​​​​‌​‍⁠⁠‍​‌⁠‍‍​​‌‍⁠‌​​⁠⁠⁠⁠‍​‌⁠⁠‌

Maximum battery dimensions: 7 in (177.8 mm) W x 11.8 in (299.7 mm) L x 15 in (380 mm) H.

1. Park the machine on a level surface and remove the key.
2. To engage the seat support, lift the seat completely open until the pin slides into the lower notch of the seat support.

Machines with deluxe seat option only: Pull and hold the Operator seat release handle forward to unlock the seat before lifting the seat open.

3. Carefully install the batteries into the battery compartment tray and arrange the battery posts as shown. Insert the foam spacers along side the batteries as shown if installing the smaller batteries.

NOTE: For large traction batteries, remove the seat assembly and use a hoist to install the battery.

4. Using the supplied battery post boots, connect the cables to the battery posts, RED TO POSITIVE (+) & BLACK TO NEGATIVE (-).

Lithium-ion battery (lithium-ion case battery)

For machines equipped with lithium-ion case battery, contact Tennant Service for battery service and replacement.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​​‌​‌​​​‌​‍⁠⁠‍​​​‌​‌‌​‌‌​‍‌‌⁠‍‍‍​​‍⁠‌

Lithium-ion battery (2, 3, or 4 pack)

Lithium-Ion batteries must be charged prior to initial use, see CHARGING THE BATTERIES section of the manual.

1. Park the machine on a level surface and remove the key.
2. To engage the seat support, lift the seat completely open until the pin slides into the lower notch of the seat support.

Machines with deluxe seat option only: Pull and hold the Operator seat release handle forward to unlock the seat before lifting the seat open.

3. With adequate assistance carefully install the batteries into the battery compartment tray and arrange the battery posts as shown. Insert the foam spacers and counter weights along side the batteries as shown.

Machines equipped with 2 batteries.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​​‌​‍​​​‌​‍⁠⁠‌‍‍​‌‍‍‌​​​‌‍‍‍​‍​​​‍⁠‌‍

Machines equipped with 3 batteries.

Machines equipped with 4 batteries.

4. Using the supplied battery post boots, connect the cables to the battery posts, RED TO POSITIVE (+) & BLACK TO NEGATIVE (-).

5. Locate the power button on each of the Lithium-Ion batteries. Press and hold the button for 5 seconds to turn on the battery. The battery discharge indicator will illuminate green when turned on. Each battery must be turned on individually.

Battery discharge indicator

The Battery discharge indicator displays the charge level of the batteries while the machine is operating.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​​‌​⁠​​​‌​‍⁠⁠​⁠⁠⁠​​⁠⁠⁠⁠​‌​​‍‍​​‌‌⁠​⁠​

When the batteries are fully charged, all five bars are lit. Recharge the batteries when there is only one bar shown in the display. Do not allow the batteries to discharge below the last bar.

NOTE: The reading on the battery discharge indicator is not accurate when the machine is first powered on. Operate the machine a few minutes before reading the charge level of the batteries.

NOTE: The flashing Warning / fault indicator and battery low fault in the LCD (liquid crystal display) will not reset until after the batteries have been fully charged. See FAULT INDICATOR(S).

NOTE: Lithium-ion Battery Model - Do not store the machine for an extended period if battery is discharged to the last bar, the battery may further discharge to a level that is unrecoverable.

Hour meter

The Hour meter records the hours the machine was operated. Use this information to determine machine service intervals.

Recovery tank full indicator

The Recovery tank full indicator displays 0% when the recovery tank is not yet full and 100% when the recovery tank is full. All scrubbing functions will stop when the recovery tank is full. Empty the recovery tank when the indicator displays 100%.

Emergency shut-off button

The Emergency shut-off button immediately stops all power to the machine.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​​‌‌​​​​‌​‍⁠⁠‍‌⁠‌‌‌⁠⁠‍‌​⁠‍‌​⁠‍⁠‌⁠​‌‌‌

Stop machine power: Push the Emergency shut-off button.

Restart machine power: Turn the Emergency shut-off button to the right to release the button. Turn the key switch to the Off position, then turn the key fully clockwise and release it to the On position.

NOTE: Lithium-ion Battery Model - To restart machine, turn key switch off and wait up to 3 seconds for machine power to completely shut off then turn key switch back on again.

Only use this button in the event of an emergency. It is not intended for routine machine shutdown.

Blue light (option)

The blue light shines onto the floor in front and behind the machine to alert pedestrians the machine is near. The blue lights automatically come on when the key switch is turned on. Position the blue lights so they illuminate far enough out from the machine to adequately alert pedestrians that the machine is near.

Operating / hazard light switch (option)

Operating and Hazard Lights On: Press the top of the Operating / hazard light switch.

Hazard Lights On: Press the Operating / hazard light switch to the middle position.

All Lights Off: Press the bottom of the Operating / hazard light switch.

Operator seat

The front-to-back adjustment lever adjusts the seat position.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​​‌‌‌​​​‌​‍⁠⁠‌‌‍​‌​‍​‌‍⁠‌‌⁠‌⁠‍​⁠⁠‍‌​‍

Seat belts (deluxe seat option only)

Seat support

The Seat support holds the seat up to allow access to the batteries and circuit breakers.

To engage the seat support, lift the seat completely open until the pin slides into the lower notch of the seat support.

Machines with deluxe seat option only: Pull and hold the Operator seat release handle forward to unlock the seat before lifting the seat open.

Contrast control button

NOTE: The contrast can only be adjusted right after the key switch is turned on.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​​‌‌‍​​​‌​‍⁠⁠‌‌​​​‌​‌​​‌‍​⁠‍‌⁠‌‌‌‌‍‌​

Use the Contrast control button to darken / lighten the LCD display.

Configuration mode button

The Configuration mode button is for accessing the configuration and diagnostic modes. Only properly trained service personnel and TENNANT representatives should access these modes.

Propel pedal

Press the Propel pedal to move the machine.

Directional switch

Use the Directional switch to select either the forward or reverse direction. Press the propel pedal to move the machine.

NOTE: An audible alarm will sound when the Directional switch is placed into reverse.

NOTE: Machines equipped with the optional flashing light / backup alarm only: The optional backup light and alarm will function only when the machine is moving in reverse.

Brake pedal

Press the Brake pedal to stop the machine.

Vacuum fan / squeegee button

Lower squeegee and turn vacuum fan on: Press the Vacuum fan / squeegee button. The indicator light will illuminate when the squeegee is lowered.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​​‌‌⁠​​​‌​‍⁠⁠​‌⁠​⁠​‌​‍​‌​⁠​‍⁠⁠​‍‍‍​⁠‍

Raise squeegee and turn vacuum fan off: Press the Vacuum fan / squeegee button. The indicator light will go out when the squeegee is raised.

NOTE: The 1-STEP button does not need to be activated to operate the vacuum fan / squeegee system. The vacuum fan / squeegee button can be turned on or turned off with the 1-STEP button either on or off.

Solution on / off button

Shut off the solution flow: Press the Solution on / off button to shut off the solution flow. All the solution flow indicator lights will turn off.

Turn on the solution flow: Press the Solution on / off button to turn on the solution flow. The solution indicator lights will turn back on and the solution flow will default to the last setting used.

How the machine works

The 1-STEP button makes it possible to immediately begin scrubbing by operating all the scrubbing functions.

When in the conventional Scrub mode, a water and detergent mixture is used to scrub the floor.

When in the optional ec-H2O (electrically converted water) mode, normal water passes through a module where it is oxygenated and charged with an electric current. The electrically converted water changes into a blended acidic and alkaline solution forming a neutral pH cleaner. The converted water attacks the dirt, breaks it into smaller particles, and pulls it off the floor surface allowing the machine to easily scrub away the suspended soil. The converted water then returns to normal water in the recovery tank. The ec-H2O system can be used with all double scrubbing and heavy duty scrubbing applications.

For best results, use the appropriate brush or pad for the cleaning application. Listed below are brushes and pads and the applications for which each is best suited.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​​‌‍​​​​‌​‍⁠⁠‌​‌⁠‌‍‍‍⁠‌​‍‌⁠‍​⁠‌​​‍‌⁠⁠

NOTE: The amount and type of soilage play an important role in determining the type of brush or pad to use. Contact a Tennant representative for specific recommendations.

Nylon brush (Disk)* - Softer nylon bristles are recommended for scrubbing coated floors. Cleans without scuffing.

Polyester brush (Cylindrical) - Softer general purpose polyester bristles gently clean while scrubbing. Perfect for sensitive floor surfaces. Polyester does not absorb water so it is preferred over Nylon in wet applications.

PolyPro brush (Cylindrical) - Heavy duty polypropylene bristles provide a more aggressive cleaning performance and can more easily lift compacted dirt, debris, and sand while offering excellent scrubbing performance.

Polypropylene brush (Cylindrical and Disk)* - General purpose polypropylene bristles lift lightly compacted dirt without scuffing high-gloss coated floors.

Super AB brush (Cylindrical and Disk)* - Nylon fiber with an abrasive grit to remove stains and compacted dirt. Aggressive action on any surface. Performs well on buildup, grease, or tire marks.

* This brush is also available for the side brush.

Stripping pad (Brown) - For stripping of floor finish to prepare the floor for recoating.

Scrubbing pad (Blue) - For medium to heavy-duty scrubbing. Removes dirt, spills, and scuffs.

Buffing pad (Red) - For light duty scrubbing without removing floor finish.

Polishing pad (White) - For maintaining highly polished or burnished floors.

High productivity stripping pad (Black) - For aggressive stripping of heavy finishes or sealers, or for very heavy duty scrubbing. This pad can only be used with the grip pad driver, not the tufted pad driver.

Surface preparation pad (Maroon) - For very aggressive chemical free removal of floor finish to prepare the floor for re-coating

Grip pad driver - The grip-face backing allows pads to be fully used and holds pads in place without penetrating the pad. The spring-activated centering device works with all Tennant pads and allows for fast, easy pad replacement.

Tufted pad driver - Standard pad driver has short bristles, or “tufts,” on the back to hold the pad in place. This driver works with all Tennant pads except the black high productivity pad.

Pick up oversized debris before scrubbing. Pick up wire, string, twine, large pieces of wood, or any other debris that could become wrapped around or tangled in the brushes.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​​‌‍‌​​​‌​‍⁠⁠​‌⁠​⁠⁠‍​​‍​⁠⁠⁠‍‍​‌‍​​​​‌

Drive in a straight a path as possible. Avoid bumping into posts or scraping the sides of the machine. Overlap the scrub paths by a few inches (several centimeters).

Avoid turning the steering wheel too sharply when the machine is in motion. The machine is very responsive to the movement of the steering wheel. Avoid sudden turns, except in emergencies.

Adjust the machine speed, brush pressure, and solution flow as required when scrubbing. Use the lowest brush pressure and solution flow settings for best performance.

If poor cleaning performance is observed, stop cleaning and refer to MACHINE TROUBLESHOOTING in this manual.

If any fault codes occur, correct the problem before continuing to operate the machine.

Perform the Daily Maintenance Procedures after each use (see MACHINE MAINTENANCE in this manual).

Drive the machine slowly on inclines. Use the brake pedal to control machine speed on descending inclines. Scrub with the machine up inclines rather than down inclines.

Do not operate machine in areas where the ambient temperature is above 110°F (43°C). Do not operate scrubbing functions in areas where the ambient temperature is below freezing 32°F (0°C).

Pre-operation checklist

Perform the following steps before operating the machine:

• Check the machine for fluid leaks.
• Check the operating lights.
• Check left side squeegee for wear and damage.
• Check main brushes for wear and damage. Remove wire, string, or twine wrapped around the main scrub brushes and brush motors.
• Machines equipped with cylindrical brushes: Confirm the debris tray is empty and clean.
• Machines equipped with side brush option: Check for wire, string, or twine wrapped around the scrub brush.
• Machines equipped with side brush option: Check squeegee for wear and damage.
• Check the rear squeegees for wear and damage.
• Check the recovery tank cover seals for wear or damage.
• Confirm the vacuum fan inlet filter is clean.
• Check the right side squeegee for wear and damage.
• ec-H2O Scrubbing: Confirm all conventional cleaning agents/restorers are drained and rinsed from the solution tank.
• ec-H2O Scrubbing: Confirm the solution tank is filled with clear cool water only.
• Check the horn, headlights, taillights, safety lights, and backup alarm (if equipped).
• Check the brakes and steering for proper operation.
• Check the tires for damage.
• Check maintenance records to determine maintenance requirements.

Starting the machine

1. Sit in the operators seat.
2. Turn the Key switch completely past the On position and release the key switch. The key switch will automatically return to the On position.

NOTE: Lithium-ion Battery Model - It is not required to turn the key switch completely past the On position to start machine. However, there is a slight delay before the machine power turns on after turning key switch. There is also a 3 second delay when powering off the machine.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​​‌‍‍​​​‌​‍⁠⁠⁠⁠‌⁠‍‍‌‌‌⁠‍​‍‌⁠⁠‌​​⁠‌‌‍‌

NOTE: Lithium-ion Battery Model - The machine will automatically shut off if not operated for more than one hour to conserve battery energy. To restart machine, turn key switch off and wait up to 3 seconds before turning key switch back again.

3. Turn on lights (if equipped).
4. Place the Directional switch into the direction needed to travel.
5. Press the Propel pedal to move the machine.

NOTE: The machine will not travel unless the operator is sitting in the operator seat.

Filling the solution tank

ec-H2O scrubbing (ec-H2O mode)

1. Remove the cap from the solution tank.

2. Fill the solution tank with only clean COOL WATER (less than 70°F (21°C)). DO NOT use hot water or add any conventional floor cleaning detergents or an ec-H2O system failure may result. Fill the solution tank with water until the level is approximately 2 in (50 mm) below the cap.

NOTE: Do not use the ec-H2O system when there are conventional cleaning detergents in the solution tank. Drain, rinse, and refill the solution tank with clear cool water before operating the ec-H2O system. Conventional cleaning detergents may cause an ec-H2O system failure.

3. Reinstall the cap onto the solution tank.

Conventional scrubbing mode

1. Open the solution tank cover.

2. Partially fill solution tank with water (not to exceed 140°F (60°C)). Pour the required amount of detergent into the solution tank. Continue filling the solution tank with water until the level is approximately 2 in (50 mm) below the cap.

NOTE: Pour a recommended foam control solution into the recovery tank if excessive foam appears. For specific detergent recommendations, contact a Tennant representative.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​​‌‍⁠​​​‌​‍⁠⁠‍​⁠‌⁠‍⁠​⁠‍​‌‍‍⁠‌‌​‌​‍‍​⁠

3. Close the solution tank cover.

ec-H2O button (option)

The ec-H2O button enables the ec-H2O system to come on when the 1-STEP button is activated. The light between the ec-H2O logo and ec-H2O button will come on. The machine will default to the last setting used when it is powered on or off.

Setting brush pressure

Under normal cleaning conditions, the brush pressure should be set to the lowest setting. Under heavy grime conditions, the brush pressure can be set to a higher setting. Travel speed and floor conditions will affect cleaning performance. If brushes are worn, it may be necessary to increase the brush pressure. The machine will default to the last setting used when it is powered on or off.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​​‌⁠​​​​‌​‍⁠⁠⁠‍‌‍‍⁠‍⁠⁠‌‌​‌‍‌‌‍‌⁠⁠‍‌‌‌

T12 Only: With the 1-STEP button activated, press either the Brush pressure increase button (+) or Brush pressure decrease button (-) to set the brush pressure.

T12XP Only: With the 1-STEP button activated, press the Brush pressure button to both raise or lower the brush pressure settings.

Setting solution flow

With the 1-STEP button activated, press either Solution increase button (+) or Solution decrease button (-) to set the solution flow level. Travel speed and floor conditions will affect scrubbing performance. Under normal soilage conditions the solution flow level should be set to the lowest setting (the left light). Under heavy grime conditions, the solution flow level should be set to the higher settings (middle or right lights). The machine will default to the last setting used when the machine is powered on or off. The solution flow indicator lights display the current solution flow setting.

1. Turn on the machine.
2. Press the 1-STEP button. The light near the button will come on. All the preset scrubbing functions will turn on.

3. Press the ec-H2O button if using optional ec-H2O system to scrub. The indicator light will illuminate.

4. If necessary, adjust the brush pressure and solution flow.

5. Place the Directional switch in the direction the machine is to be moved (forward or reverse).
6. Press the Propel pedal to begin scrubbing.

NOTE: DO NOT turn on the ec-H2O system during conventional scrubbing. Conventional cleaning detergents could cause an ec-H2O system failure. Drain, rinse, and refill the solution tank with cool clean water before operating the ec-H2O system.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​​‌⁠‌​​​‌​‍⁠⁠‌‍​⁠⁠⁠⁠⁠‌‍‌‍⁠⁠⁠‌​​‌​⁠‍‌‍

NOTE: The squeegee automatically rises when the machine is driven in reverse. This prevents damage to the squeegee.

ec-H2O Model: If an alarm sounds and the warning / fault indicator indicator light flashes the ec-H2O module must be flushed to resume ec-H2O operation (See ec-H2O MODULE FLUSH PROCEDURE).

NOTE: When the alarm sounds press the scrub mode button to shut off the ec-H2O system and continue scrubbing or flush the ec-H2O system.

7. Release the Directional pedal and press the brake pedal to stop the machine.
8. Press the 1-STEP button to stop scrubbing. The light near the button will go off and scrubbing functions will stop after a short delay.

Use the double scrubbing method to clean heavily soiled areas.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​​‌⁠‍​​​‌​‍⁠⁠‍​‌⁠‍‍‌‍​⁠‍⁠‍‍⁠‍‍​‍⁠⁠⁠‌‌

Double scrubbing can be performed using the ec-H2O SCRUBBING SYSTEM (option) or CONVENTIONAL SCRUBBING methods.

To raise the side squeegees for double scrubbing, remove the clevis pins from the storage locations. Manually raise both side squeegee assemblies, then reinsert the pins into the holes in the side squeegee brackets.

Press the 1-STEP button and then the Vacuum fan/squeegee button. The light above the Vacuum fan/squeegee button will turn off, the squeegee will rise, and the vacuum fan will stop operating. Scrub the heavily soiled area. Let the cleaning solution soak on the floor for 5-15 minutes.

Before scrubbing the floor a second time, lower the side squeegees and press the Vacuum fan/squeegee button to lower the rear squeegee and turn on the vacuum fan. The light above the button will come on. Scrub the floor a second time to pick up the cleaning solution.

NOTE: To turn off the solution flow when scrubbing the area a second time, press the Solution on / off button Press the Solution on / off button again to restart the solution flow.

NOTE: Double scrubbing is not recommended in areas where the cleaning solution will run under racks or damage products.

Water pickup mode (no scrubbing)

The machine can be used to pick up water or non-flammable liquid spills without scrubbing.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​​‌⁠⁠​​​‌​‍⁠⁠​‍⁠⁠‍​⁠‌‌​‌⁠⁠‌⁠‍​​​‌​‍​‌

To pick up water or non-flammable liquid spills, make sure the 1-STEP button is not activated. The light above the button must be off.

Press the Vacuum fan/squeegee button. The light above the button will come on, the squeegee will lower, and the vacuum fan will start operating. Pick up the water or non-flammable liquid spill.

Stop scrubbing

1. While the machine is still in motion, press the 1-Step button to stop the scrubbing operations. The squeegee will briefly remain lowered to the floor to pick up the water in the scrub head, and then raises.

2. Release the Propel pedal and press the Brake pedal to stop the machine.

Draining and cleaning the recovery tank

Drain and clean the recovery tank daily or when the recovery tank full fault code appears on the LCD display.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​​‍​​​​​‌​‍⁠⁠​​‍‌​⁠‍‍⁠‌‍‌‌⁠​⁠‍​⁠⁠‌​‍⁠

Clean the outside of the tank with vinyl cleaner.

1. Drive the machine near a floor drain.

2. Unhook the recovery tank drain hose from the recovery tank.

3. Hold the drain hose near a floor drain, twist the drain nozzle open, and place the hose near the floor drain.

NOTE: Be sure the drain hose nozzle is pointed in a safe direction before opening the nozzle.

4. If necessary, twist the drain nozzle to another position to adjust the flow rate.

5. Lift the recovery tank cover and flush out the recovery tank with clean water. Rinse the sensor near the top of the tank

6. To prevent leaks, clean the plug portion of the nozzle and the interior of the drain hose cuff.

NOTE: DO NOT use steam to clean the tanks. Excessive heat can damage the tanks and components.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​​‍​‌​​​‌​‍⁠⁠​​​‍‍​‍⁠‌⁠⁠⁠⁠​‌​‌⁠⁠‌‍⁠​‍

7. Twist the drain cuff closed and insert the drain hose back into the clip on the recovery tank.

8. Check the vacuum fan inlet filter daily. Clean inlet filter with a damp cloth or hose when dirty. Allow filter to completely dry before reinstalling it into the machine.

9. Remove the vacuum screen from the recovery tank and rinse the screen.

10. Remove the debris tray from the recovery tank and rinse all debris from the tray.

11. Close the recovery tank cover.
12. Cylindrical scrub head: Remove and clean the debris trough. Place the trough back in the scrub head when clean.

NOTE: The scrub head must be lowered approximately 1 in (25 mm) to remove debris trough.

NOTE: The debris trough can be removed from the right side of the machine only.

Draining and cleaning the solution tank

Clean the outside of the tank with vinyl cleaner.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​​‍​‍​​​‌​‍⁠⁠​‍​‍⁠‍​‍⁠⁠⁠‌⁠​‍‌‌⁠​‍⁠‍​⁠

1. Drive the machine near a floor drain.

2. Remove the solution tank drain hose from the solution tank.

3. Hold the drain hose near a floor drain, twist the drain nozzle open, and place the hose near the floor drain.

NOTE: Be sure the drain hose nozzle is pointed in a safe direction before opening the nozzle.

4. If necessary, twist the drain nozzle to another position to adjust the flow rate.

5. Remove the cap from the solution tank and flush out the solution tank with clean water.

NOTE: DO NOT use steam to clean the tanks. Excessive heat can damage the tanks and components.

6. To prevent leaks, clean the plug portion of the nozzle and the interior of the drain hose cuff.

7. Twist the drain cuff closed and insert the drain hose back into the clip on the recovery tank.

8. If the solution tank filter gets clogged, remove the drain hose to access and clean the filter.

Turn off the machine

1. Remove foot from the Propel pedal.
2. Press the 1-Step button to stop scrubbing.
3. Press the Brake pedal to stop the machine.
4. Turn the Key switch to the Off position.

This machine is equipped with two visual indicators, a red indicator light and an LCD (liquid crystal display).‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​​‍‌​​​​‌​‍⁠⁠‍‍‌‍‌⁠‍‍‍​⁠‍​‍⁠‍‍​‌‌⁠​‍⁠

The red indicator light will blink continuously indicating that a fault has occurred.

The LCD will display a fault code. If there is more than one fault, each fault code will alternately display.

All faults codes are also accompanied by an audible alarm to alert the operator a fault has occurred.

To reset the fault indicators, turn the machine off, then eliminate the cause of the fault. The fault indicator will reset when the machine is restarted.

NOTE: Lithium-ion Battery Model - To clear fault code, turn the key switch off and wait up to 3 seconds for machine power to completely shut off. Then turn key switch back on again.

Warning codes are typically caused by the operator attempting to activate modes that are not available. The warning code will appear in the LCD (liquid crystal display).‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​​‍‌‌​​​‌​‍⁠⁠⁠⁠​⁠‌‌⁠‍‌⁠​​‍​⁠⁠‍‍‍⁠​​‌‌

Refer to the table below to determine the cause of the warning code.

Spray nozzle (option)

The spray nozzle is used to clean the machine and surrounding areas. The solution tank provides a water/solution supply for the spray nozzle.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​​‍‌‍​​​‌​‍⁠⁠⁠‍​‌​⁠⁠⁠⁠‌⁠⁠‍⁠‌‌‍⁠‍‍​‌‌‍

1. Turn on the machine.
2. Press the top of the Spray nozzle switch to turn on the spray nozzle. The light on the switch will come on when the spray nozzle is turned on.

3. Pull the spray nozzle out from the back of the machine and clean as needed.

4. When finished cleaning, gently pull the hose and allow the spray nozzle hose to retract back into the machine.

NOTE: Continue holding onto the spray nozzle and control the hose while it is retracting back into the machine. The machine and / or the spray nozzle assembly could be damaged if the spray nozzle hose is released and allowed to rapidly retract into the machine.

5. Place the spray nozzle onto the hook.

6. Press the bottom of the Spray nozzle switch to turn off the water supply. The light on the switch will turn off when the spray nozzle is turned off.

NOTE: Be sure the Spray nozzle switch is turned off before continuing scrubbing. The spray nozzle pump could be damaged if the switch is left on while scrubbing.

Vacuum wand (option)

Use the vacuum wand to clean areas that are out of reach of the machine.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​​‍‌⁠​​​‌​‍⁠⁠⁠‌⁠‌⁠⁠‍​​‍​​‍‍‍‍⁠‍‌‌‌‌⁠‍

1. Unsnap the vacuum wand lanyard from the solution tank.

2. Remove the vacuum wand / squeegee vacuum hose from the rear squeegee.

3. Insert the vacuum wand cap into the vacuum port in the vacuum wand.

4. Twist the vacuum nozzle to the vacuum position and extend the handle to the desired length.

5. Turn on the machine.
6. Press the Vacuum fan/squeegee button to turn on the vacuum fan. The squeegee will completely lower.

7. Vacuum the floor.

8. When finished vacuuming, press the Vacuum fan/squeegee button to turn off the vacuum fan. The squeegee will raise.
9. Turn off the machine.
10. Remove the vacuum wand cap from the vacuum port and return the vacuum nozzle to the storage position and the handle to the storage length.

11. Reinstall the vacuum wand / squeegee vacuum hose onto the rear squeegee.
12. Insert the vacuum hose into the vacuum hose recess in the recovery tank.

13. Snap the vacuum wand lanyard onto the solution tank to secure the vacuum wand / squeegee vacuum hose to the machine.

Rear squeegee guard (option)

The rear squeegee protector helps protect the rear squeegee from being damaged.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​​‍‍​​​​‌​‍⁠⁠⁠​​⁠⁠‌⁠‌‌‌‌​‍‍⁠‌⁠​‌⁠⁠⁠⁠​

To engage the rear squeegee protector, pull the pin, lower the protector bar, and reinsert the pin.

Side brush (option)

The side brush moves debris into the path of the main brushes.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​​‍‍‌​​​‌​‍⁠⁠⁠⁠‍​⁠‌‍‍​​​‌‍‍​​​⁠⁠⁠​‍⁠⁠

1. Turn on the machine
2. Press the top of the Side brush switch to enable the side brush assembly.

3. Press the 1-Step button. The side brush assembly will lower with the main brush.

NOTE: The 1-Step button controls the side brush assembly when the Side brush switch is in the On (top) position.

4. Press the Propel pedal to begin scrubbing.
5. Press the bottom of the Side brush switch to stop and raise the side brush.

Adjusting backup alarm volume (option)

The backup alarm volume can be adjusted from 85-102 dB(A). To adjust the volume, remove the backup alarm cover and turn the volume knob.

Increase volume: Turn the knob clockwise.

Decrease volume: Turn the knob counter-clockwise.

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.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​​‍⁠‍​​​‌​‍⁠⁠​‌‍​‌‌​⁠‍​‍⁠​⁠⁠‌⁠‍​​​‌‍‌

Lubrication

Steering chain (T12XP only)

The steering chain is located on the steering column directly under the control panel. Check for damage or wear and lubricate the steering chain after every 200 hours.

Steering gear chain

The steering gear chain is located directly above the front tire. Check for damage or wear and lubricate the steering gear chain after every 200 hours.

Rear squeegee casters

Lubricate the rear squeegee caster pivot point on each squeegee caster after every 50 hours.

Batteries

The lifetime of the batteries depends on their proper maintenance. To get the most life from the batteries;‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​​‍⁠⁠​​​‌​‍⁠⁠⁠⁠‌‍‌⁠‌⁠⁠​​​‌‍⁠‍​‍⁠​‌⁠‌⁠

Flooded (wet) and maintenance-free sealed lead-acid 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.

Checking the electrolyte level

The flooded (wet) lead-acid batteries require routine maintenance as described below. Check the battery electrolyte level weekly.

NOTE: Do Not check the electrolyte level if the machine is equipped with the battery watering system. Proceed to the BATTERY WATERING SYSTEM (OPTION).

The 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.

Maintenance-free batteries

Maintenance-free batteries do not require watering. Cleaning and other routine maintenance is still required.

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, with a strong solution of baking soda and water. Replace any worn or damaged wires. Do not remove battery caps when cleaning batteries.

The lithium-ion battery pack is a maintenance-free battery protected by a battery management system (BMS). To achieve the maximum battery life, carefully follow the instructions below:‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​​⁠​​​​​‌​‍⁠⁠‌‌‍​​‍​‍‌⁠‍‍‍⁠‍​‌⁠‌⁠‍‍‌​

• Lithium-Ion batteries must be charged prior to initial use.
• Carefully follow the Important Safety Instructions section in the manual when using the Lithium-ion Battery Model.
• Only use the lithium-ion battery charger supplied with machine.
• Charge battery pack in well-ventilated areas. For best charging performance, charge the battery pack in temperatures below 80°F/27°C and above 32°F/0°C. Battery pack may shut down and not take a charge in elevated or freezing temperatures.
• It is recommended to only recharge battery pack when discharge indicator level reaches the last bar. Do not store the machine for an extended period if battery is discharged to the last bar, the battery may further discharge to a level that is unrecoverable.
• When the machine shuts down due to a depleted battery pack, do not repeatedly cycle the key switch on and off. This may cause permanent battery pack damage. Recharge battery pack immediately to avoid damage.
• Allow charge cycle to completely charge battery pack.
• Opportunity charging (i.e. partial charge cycle of a half hour or more) is only recommended if discharge level is below 80%.
• Do not operate machine in temperatures above 104°F / 40°C or below −4°F / −20°C. Machine may shutdown if exceed these temperatures.
• When removing or replacing the lithium-ion battery pack, a specific lifting kit is recommended. It's important to use non-conductive lifting straps positioned at all four lift points with straps angled at 45° or greater when hoisting battery pack (Lithium Case Battery Only).
• Contact Tennant Service for lithium-ion battery service and replacement. (Lithium Case Battery Only)

Battery power button / battery discharge indicator

Each Lithuim-Ion battery contains a power button to turn on/off the battery power supply. The battery discharge indicator (BDI) displays the current state of the battery.

To display the battery charge status or fault state (while the batteries are active), press and hold the power button of any battery for one second. When the batteries are fully charged, all five green indicators are lit. As the battery discharges, the indicator levels decreases. If the indicators flash red the battery is getting very low. If the indicators display solid red along with green, the battery has a fault. Contact Tennant Service to fix the fault.

LED Indicator Status	Battery State of Charge
	81-100%
	61-80%
	41-60%
	21-40%
	11-20%
	1-10%
	Fault - Contact Tennant Service

IMPORTANT: Before charging, make sure that the charger setting is properly set for the battery type.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​​⁠​‍​​​‌​‍⁠⁠⁠‌‌‍​‌​‍⁠‌‌⁠‌‍⁠‌‍​‍‍‍‌​⁠

1. Drive the machine to a flat, dry surface in a well-ventilated area.
2. Stop the machine and turn off the machine power.

3. Lift the operator seat open and engage the seat support.

NOTE: If applicable, make sure the batteries have the proper electrolyte level before charging. See CHECKING THE ELECTROLYTE LEVEL.

4. Plug the charger AC power supply cord into a properly grounded outlet.
5. Plug the charger connector into the remote battery charge connector.

NOTE: If the charger "FAULT CODE" lights flash when the batteries are plugged into the charger, refer to the charger manufacturer manual for fault code definitions.

6. The Tennant charger will start automatically. When the batteries are fully charged, the Tennant charger will automatically turn off.
7. After the charger has turned off, unplug the charger connector from the remote battery charge connector.

8. Close the operator seat.

IMPORTANT: Before charging, make sure that the charger setting is properly set for the battery type. See ON-BOARD CHARGER SETTINGS.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​​⁠​⁠​​​‌​‍⁠⁠‌‌‍‌‍‍‍‍‍​​‌‍⁠​‌​​‌⁠‍⁠‌‌

1. Drive the machine to a flat, dry surface in a well-ventilated area.
2. Stop the machine and turn off the machine power.

3. Lift the operator seat open and engage the seat support.

NOTE: If applicable, make sure the batteries have the proper electrolyte level before charging. See CHECKING THE ELECTROLYTE LEVEL.

4. Plug the on-board battery charger cord into a properly grounded wall outlet.

NOTE: The machine will not operate when charging.

5. The on-board charger will start charging the batteries. Once the charging cycle begins, the indicator lights will progress from red, yellow to green. When the green indicator light stays on, the charging cycle is done.

If the charger detects a problem, the charger will display an error code (See ON-BOARD BATTERY CHARGER ERROR CODES).

6. Unplug the on-board battery charger from the wall outlet and neatly stow the cord inside the battery compartment.

7. Close the operator seat.

NOTE: The following instructions are intended for flooded (wet), maintenance-free lead-acid, and lithium-ion batteries.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​​⁠‌‌​​​‌​‍⁠⁠⁠‍​‌⁠‌‍‍‌‌‌‌​‍‍‌‌‌‍⁠​‌‍⁠

If the machine is equipped with the on-board charger, the charger settings are properly set at the factory. If different batteries are put in the machine, the settings must be changed to match the new battery type before charging. Failure to properly set the charger will result in battery damage.

Refer to the battery label for the battery type. Contact the battery manufacturer if battery is not labeled.

To verify the setting of the charger, connect the charger cord into an electrical outlet. The charger will display a sequence of the following codes (three-digits + the code) when the cord is connected:

• A = Charging current
• U = Battery Voltage
• h = Charging time
• C = Charging ampere-hours [Ah]
• E = Energy used [Kwh]
• "GEL", "Acd" or "LITH" = Battery type for which the charger is currently set. Before charging make sure battery type matches the display: GEL=Sealed, Acd=WET (lead acid), or LITH= Lithium-Ion.

Press the arrow button to review the codes. Refer to the battery type code to determine the charger battery type setting.

To change the setting, unplug the charger and peel up the corner of the display label to access the switches. The charger cord must be unplugged when resetting.

Adjust the switches to the correct setting for the batteries.

Lead Acid 240Ah:

Lead Acid 360Ah:

Gel:

1. Turn on the battery charger if required.

NOTE: If there are charger fault codes when the battery is plugged into the battery charger, the fault codes will appear at the bottom of the charger display. Refer to the battery charger manual for fault code definitions‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​​⁠‍​​​​‌​‍⁠⁠⁠‍‍​​‍‍⁠‍⁠‌​⁠⁠‌​​​​​⁠‌​‍

2. Observe the charger display. CHARGE appears on the display when the battery is charging. This is the charger default screen.

NOTE: (Lithium Case Battery Only) The Lithium-Ion Battery Pack's battery management system (BMS) is active for five minutes after the machine cable is disconnected. If the charger is not connected and charging within this five minutes, the BMS will shut off and the charger will not be able to charge. Reconnect the machine cable to the battery pack and remove it again to restart the BMS active period.

Charger Display:

1. Charge profile number
2. Charger rating (Volts and Current)
3. Battery voltage (Volts)
4. Charger current (Amperes)
5. Ampere hours charged
6. Time charged (hours / minutes / seconds)
7. Charging phase (Phase 1 / Phase 2 / Phase 3 / Maintenance)

3. If necessary, press the navigation buttons to access additional screens. Press the charger stop / start / enter button to enter selection. The charger will return to the default screen. Refer to manufacturers operator manual for additional information.

NOTE: If the charger cable must be disconnected from the battery before they are fully charged, press the charger stop / start / enter button to stop charging. Be sure STOP appears on the display and the red stop charge light is illuminated before disconnecting the battery charger cable.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​​⁠‍‌​​​‌​‍⁠⁠⁠‍‍​⁠‌​‌⁠‍⁠​​​‌‍‌⁠⁠‌‌‌⁠‌

4. The charger status indicators will illuminate from left to the right as the battery is charging. COMPLETE will appear in the display, all the charger status indicators will be illuminated, and the Tennant charger will stop charging when the battery is completely charged.

5. After the charger has turned off, unplug the charger connector from the remote battery charge connector.

6. Close the operator seat.

A 15 Amp fuse protects the on-board charger. Follow the instructions below to replace a blown fuse. Never substitute a higher Amp rated fuse than specified.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​​⁠‍‍​​​‌​‍⁠⁠​‍⁠​‌‌‍​⁠‌‌‍⁠‌‍⁠‍‌‍‍​‌​​

1. Lift the operator seat open and engage the seat support.
2. Unplug the charger AC power supply cord from the wall outlet.

3. Disconnect the battery cables from the batteries.

4. Remove the hardware holding the side panel to the machine and remove the side panel from the machine.

5. Remove the hardware holding the on-board battery charger onto the machine

6. Carefully pull the on-board charger out to access the fuse.
7. Remove the fuse cap and replace the fuse.

8. Reinstall the on-board battery charger and side panel onto the machine.

The optional Flow-Rite battery watering system provides a safe and easy way to maintain the proper electrolyte levels in the batteries.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​​⁠‍⁠​​​‌​‍⁠⁠​‌​⁠‍⁠‍‌‍‍⁠‌‍‍‍⁠‌⁠‍​​‌⁠‍

Check the battery watering system hoses and connections for damage or wear after every 100 hours.

1. Lift the operator seat open and engage the seat support.
2. 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. See CHARGING THE BATTERIES (OFF-BOARD CHARGER) or CHARGING THE BATTERIES (ON-BOARD CHARGER).

3. Connect the water supply hose to the fill regulator.

NOTE: Water quality is important to maintain the life of the battery. Always use water that meets battery manufacturer requirements.

NOTE: The water supply to the battery water system must always be 2 GPM (7.57 LPM) or more. Use the purger to confirm the water supply pressure. Refer to Flow-Rite Operator Manual for additional information.

4. Remove the dust cover from the battery fill tube and connect the fill regulator.

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® wet/lead-acid batteries.

Check the battery watering system hoses and connections for damage or wear after every 100 hours.

1. Lift the operator seat open and engage the seat support.
2. 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. See CHARGING THE BATTERIES (OFF-BOARD CHARGER) or CHARGING THE BATTERIES (ON-BOARD CHARGER).

3. 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.

4. Locate the battery fill hose coupler inside the battery compartment. Remove the dust cap and connect the hand pump hose.

5. Submerge the other end of the hand pump hose into a bottle of distilled water.

The following instructions are for models equipped with the manual battery watering system option.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​​⁠⁠⁠​​​‌​‍⁠⁠‍​‌‌⁠⁠​⁠​‌‍⁠​‍​‌‍⁠​‌​⁠⁠‍

The optional manual 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.

Before using the battery watering system check hoses and connections for damage or wear.

1. 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
2. After charging batteries, check the battery electrolyte level indicators located on the battery covers.

3. If the level indicator has a low white float add water as described in the following instructions.

4. Locate the battery fill hose coupler inside the battery compartment. Remove the dust cap and connect the hand pump hose.

5. Submerge the other end of the hand pump hose into a bottle of distilled water.

Circuit breakers are resettable electrical circuit protection devices designed to stop the flow of current in the event of a circuit overload. Once a circuit breaker is tripped, reset it manually by pressing the reset button after the breaker has cooled down.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​‌​​‌​​​‌​‍⁠⁠​‌‍‍​⁠⁠‍‍‌‍‌​‍⁠⁠⁠⁠‍​‌​‌​

Circuit breakers 1 through 8 are located behind the operator seat.

Circuit breakers 9 through 16 are located behind the steering shroud access panel.

Circuit breaker 17 is located inside the optional light assembly mounted on top of the recovery tank.

If the overload that caused the circuit breaker to trip is still present, the circuit breaker will continue to stop current flow until the problem is corrected.

The chart below shows the circuit breakers and the electrical components they protect.

The machine can be equipped with either disk or cylindrical scrub brushes. Check scrub brushes daily for wire or string tangled around the brush or brush drive hub. Also check brushes or pads for damage and wear.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​‌​​⁠​​​‌​‍⁠⁠‍‌‍‌‍​⁠‌⁠​​‍‌​‌‌‌​​⁠‍⁠​⁠

Disk brushes and pads

Replace the pads when they no longer clean effectively. Replace the brushes when they no longer clean effectively or when the bristles are worn to the yellow indicator.

Cleaning pads must be placed on pad drivers before they are ready to use. The cleaning pad is held in place with a center disk. Both sides of the pad can be used for scrubbing. Turn the pad over to use the other side.

Cleaning pads need to be cleaned immediately after use with soap and water. Do not wash the pads with a pressure washer. Hang pads, or lay pads flat to dry.

NOTE: Always replace brushes and pads in sets. Otherwise one brush or pad will be more aggressive than the other.

Replacing disk brushes or pad drivers

1. Raise the scrub head.
2. Turn off the machine.

3. Open the main brush access door and side squeegee support door.

4. Turn the brush until the spring handles are visible.

5. Squeeze the spring handles and let the brush drop to the floor. Remove the brush from under the scrub head.

6. Set the brush spring open on the new brush to make installation easier.

7. Push the new brush under the scrub head, align the brush drive socket with the brush drive hub, and lift the brush up onto the brush drive hub until the brush locks onto the hub.

8. Ensure the brush is securely mounted on the brush drive hub.
9. Close and secure the squeegee support door and close the main brush access door.
10. Repeat procedure for the other brush.

Replacing disk scrub pads

1. Remove the pad driver from the machine.
2. Squeeze the spring clip together and remove the center disk from the pad driver.

3. Remove the scrub pad from the pad driver.

4. Flip or replace the scrub pad. Center the scrub pad on the pad driver and reinstall the center disk to secure the pad in place on the pad driver.
5. Reinstall the pad driver onto the machine.

Rotate the brushes from front-to-rear after every 50 hours of operation.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​‌​‌‌​​​‌​‍⁠⁠‍‍‍⁠‍⁠⁠​​‍‌⁠​⁠⁠⁠​⁠​‌⁠‌​‌

Replace the brushes when they no longer clean effectively.

NOTE: Replace worn brushes in pairs. Scrubbing with brushes of unequal bristle length will result in diminished scrubbing performance.

Replacing cylindrical scrub brushes

1. Open the main brush access door and side squeegee support door.

2. Remove the idler plate from the scrub head.

3. Remove the brush from the scrub head

4. Position the brush with the double row end towards the scrub head opening. Guide the new brush onto the drive hub.
5. If rotating the brushes, always rotate the front with the back so that they wear evenly. They may be rotated end for end as well.

6. Reinstall the idler plate onto the scrub head.

NOTE: Do not switch the left or right idler plates or the brushes will need to be readjusted by trained personnel.

7. Close and secure the squeegee support door and close the main brush access door.
8. Repeat for the brush on the other side of the scrub head.

Check the side brush daily for wear or damage. Remove any tangled string or wire from the side brush or side brush drive hub.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​‌​‌‍​​​‌​‍⁠⁠​​⁠‍⁠‍​⁠‍​‍⁠​⁠‌‌‍⁠‍‍​⁠​⁠

Replacing the side brush

Replace the pads when they no longer clean effectively. Replace the brushes when they no longer clean effectively or when the bristles are worn to the yellow indicator.

1. Loosen the side brush squeegee assembly handle and remove the squeegee assembly from the machine.

2. Squeeze the spring handles and let the side brush drop to the floor.

3. Remove the side brush from under the side brush assembly.

4. Set the brush spring open on the new brush to make installation easier.

5. Place the new side brush underneath the side brush assembly and lift the side brush up onto the side brush hub until the brush locks onto the hub.
6. Reinstall the side brush squeegee assembly onto the side brush assembly.

Check the squeegee blades for damage and wear daily. When the blades become worn, rotate the blades end-for-end or top-to-bottom to a new wiping edge. Replace blades when all edges are worn.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​‌​‌⁠​​​‌​‍⁠⁠‌‍‍​​​​⁠‍‌​⁠​‍‌‍‌‌‍‍​‍⁠‍

Check the deflection of the squeegee blades daily or when scrubbing a different type of surface. Check the leveling of the rear squeegee every 50 hours of operation.

Replacing (or rotating) the rear squeegee blades

1. Lower the scrub head.

2. Disconnect the vacuum hose from the rear squeegee assembly.

3. Loosen both squeegee mounting handles.

4. Pull the rear squeegee assembly from the machine.

5. Loosen the retainer latch and remove the retainer from the squeegee assembly.

6. Remove the squeegee from the squeegee assembly.

7. Slide both retainers out away from the squeegee assembly.

8. Remove the inner frame from the outer frame.

9. Remove the squeegee from the outer frame.

10. Install the rotated or new squeegee blade into the outer frame. Be sure the squeegee is completely slid down onto each tab on the outer frame.

11. Install the inner frame over the squeegee and onto the outer frame. Be sure the inner frame is tight against the top of the outer frame.

12. Slide both retainers into the squeegee assembly.

13. Place the rotated or new squeegee blade onto the inner frame. Be sure the squeegee is securely attached on each tab on the inner frame.

14. Insert the hinge end of the retainer into the hooks in the inner frame.

15. Install the retainer along the rest of the squeegee assembly and fasten the latch onto the other end of the squeegee assembly.

Leveling the squeegee ensures the entire length of the squeegee blade is in even contact with the surface being scrubbed. Perform this adjustment on an even and level floor.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​‌​‍‍​​​‌​‍⁠⁠‌⁠​‍​⁠⁠‍‌‍‌​​‌‍​⁠‍​​​⁠‌‍

1. Lower the squeegee and drive the machine several feet (meters) forward and slowly bring the machine to a stop.

2. Check the squeegee deflection over the full length of the squeegee blade.
3. If the deflection is not the same over the full length of the blade, use the tilt adjust knob to make adjustments.

   DO NOT disconnect the vacuum hose from the squeegee frame when leveling squeegee.

4. To adjust the squeegee leveling, loosen the tilt lock knob.

5. Turn the squeegee tilt adjust knob counter-clockwise to decrease the deflection at the ends of the squeegee blade.

   Turn the squeegee tilt adjust knob clockwise to increase the deflection at the ends of the squeegee blade.

6. Tighten the tilt lock knob.
7. Drive the machine forward with the squeegee down to recheck the squeegee blade deflection if adjustments were made.
8. Readjust the squeegee blade deflection if necessary.

Deflection is the amount of curl the overall squeegee blade has when the machine moves forward. The best deflection is when the squeegee wipes the floor dry with a minimal amount of deflection.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​‌​‍⁠​​​‌​‍⁠⁠‌‌‌‍​⁠⁠‍⁠‌‌​⁠⁠​​‌‍‍​⁠‌‌‌

NOTE: Make sure the squeegee is level before adjusting the deflection. See LEVELING THE REAR SQUEEGEE.

1. Lower the squeegee and drive the machine several feet (meters) forward and slowly bring the machine to a stop.

2. Look at the amount of deflection or "curl" of the squeegee blade. The correct amount of deflection is 0.50 in (12 mm) for scrubbing smooth floors and 0.62 in (15 mm) for rough floors.

3. To adjust the overall squeegee blade deflection, loosen the lock knob.

4. Turn the adjustment knobs counterclockwise to increase deflection or clockwise to decrease deflection.

5. Retighten the lock knob.
6. Drive the machine forward again to recheck the squeegee blade deflection.
7. Readjust the squeegee blade deflection if necessary.

1. If necessary, raise the scrub head.

2. Open the main brush access door and side squeegee support door.

3. Unhook the retaining band latch from the side squeegee assembly.

4. Remove the retaining band from the side squeegee assembly.

5. Remove the squeegee blade from the side squeegee assembly.

6. Install the rotated or new rear squeegee blade onto the side squeegee assembly.
7. Hook the retaining band onto the retaining band retainer tab on the side squeegee assembly.

8. Fasten the retaining band latch onto the side squeegee assembly.

9. Close and secure the squeegee support door and close the main brush access door.
10. Repeat for the side squeegee on the other side of the scrub head.

Check the side brush squeegee blade for damage and wear daily. Replace or rotate the blade if the leading edge is torn or worn half-way through the thickness of the blade.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​‌​⁠‌​​​‌​‍⁠⁠​​‍⁠​‌⁠‍​‍‍‌​‌‌​‍‌⁠⁠⁠‌​‍

1. Loosen the side brush squeegee assembly handle and remove the squeegee assembly from the machine.

2. Loosen the retaining band latch.

3. Remove the retaining band, squeegee blades, and spacer from the squeegee frame.

NOTE: Observe which squeegee slots were installed on the squeegee frame before removing the squeegee.

NOTE: The squeegee blade(s) have two sets of slots for adjusting the squeegee blade deflection. Install / reinstall squeegees so the deflection is approximately 0.50 in (12 mm) for smooth floors and 0.62 in (15 mm) for rough floors.

Recovery tank seal

Check the recovery tank cover seal for damage and wear daily.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​‌​⁠⁠​​​‌​‍⁠⁠​⁠‍‍​‍​​⁠‍‌⁠‍​​‍​⁠⁠​‌‍​‍

Scrub head skirts (disk scrub heads only)

Check the scrub head skirts for damage and wear after every 50 hours of operation.

Belts

Cylindrical brush drive belts

The brush drive belts are located on the cylindrical brush scrub head. Check the belts for damage and wear after every 200 hours of operation.

Tires

The machine has three solid rubber tires: one in front, and two in the rear of the machine. Check tires for damage and wear after every 500 hours of operation.

Pushing or towing the machine

If the machine becomes disabled, it can be pushed or towed from the front or rear.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​‌‌​​​​​‌​‍⁠⁠‌‍‌⁠‌‍⁠⁠​‍‌‍‍​​‍⁠​‍​‍‍‍⁠

The parking brake must be disabled before towing or pushing the machine. To disable the brake, insert the tip of a small screw driver between the electronic brake lever and the hub. The machine can move freely when the parking brake is disabled.

Only push or tow the machine for a very short distance and do not exceed 2 mph (3.2 km/h). It is NOT intended to be pushed or towed for a long distance or at a high speed.

Immediately after pushing the machine, remove the screw driver from between the electronic brake lever and the hub. NEVER operate the machine with the parking brake disabled.

Transporting the machine

1. Raise the squeegee, scrub head, and brushes.

2. Position the machine at the loading edge of the truck or trailer.
3. If the loading surface is not horizontal or is higher than 15 in (380 mm) from the ground, use a winch to load machine.

   If the loading surface is horizontal AND is 15 in (380 mm) or less from the ground, the machine may be driven onto the truck or trailer.

4. To winch the machine onto the truck or trailer, attach the winching chains to the stabilizer legs.

5. Position the machine as close to the front of the trailer or truck as possible. If the machine starts to veer off the center line of the truck or trailer, stop and turn the steering wheel to center the machine.

6. Place a block behind each wheel to prevent the machine from rolling.
7. Lower the scrub head and turn off machine.

8. Connect the tie-down straps to the right and left stabilizer bars in front of the machine and the holes in the rear jacking brackets at the rear of the machine.

9. If the loading surface is not horizontal or is higher than 15 in (380 mm) from the ground, use a winch to unload machine.

   If the loading surface is horizontal AND is 15 in (380 mm) or less from the ground, the machine may be driven off the truck or trailer.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​‌‌​‌​​​‌​‍⁠⁠⁠⁠‍⁠⁠​‌‍​⁠​‍‍​​‌‍‌‌‍⁠​​⁠

Empty the recovery and solution tanks before jacking the machine.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​‌‌​‍​​​‌​‍⁠⁠​‍​⁠‍⁠‌​‍​‌​⁠​‍⁠⁠‍​⁠⁠​‍​

Jacking point location at the front of all machines.

Jacking point location at the rear of machines not equipped with the optional rear squeegee protector.

Jacking point location at the rear of machines equipped with the optional rear squeegee protector.

This procedure is only required when an alarm sounds and the ec-H2O system indicator light begins to blink.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​‌‌​⁠​​​‌​‍⁠⁠‍​‌⁠⁠​⁠‍⁠​‍‌​​​‍‌​‍​​‍‌⁠

1. Lift the operator seat open and engage the seat support.
2. Remove the drain hose from the ec-H2O compartment.

3. Press the connector button to disconnect the outlet hose from the ec-H2O manifold.

4. Connect the drain hose to the ec-H2O manifold hose disconnected from the ec-H2O manifold in the previous step.

5. Place the drain hose into a empty container.

6. Pour 2 gallons (7.6 liters) of white or rice vinegar into the solution tank.

The following steps should be taken when storing the machine for extended periods of time.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​‌‌‌‌​​​‌​‍⁠⁠‍⁠‌‍‌‍​​⁠​‌‌‍‍‍​‌⁠‍⁠‌​​‍

1. Charge the batteries before storing machine to prolong the life of the batteries. Recharge lead-acid batteries once a month. Recharge Lithium-ion Battery Pack once a year.
2. Disconnect batteries before storing.
3. Lithium-Ion batteries: Turn off battery power with the battery power button (2, 3, or 4 pack only).
4. Thoroughly drain and rinse the solution and recovery tanks.
5. Store the machine in a dry area with the squeegee and scrub head in the up position.

6. Open the recovery tank cover to promote air circulation.
7. 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

1. Completely drain the solution tank and recovery tank.

2. Pour 2 gal (7.6 L) of Propylene Glycol Based / Recreational Vehicle (RV) antifreeze into the solution tank.

3. Turn on the machine.
4. Press the 1-Step button.

5. Repeatedly press the Solution increase button (+) until the solution flow is at the highest setting.

6. Machines with ec-H2O option only: Press the scrub mode button to place machine into the ec-H2O mode. The ec-H2O indicator light will illuminate.

7. Machines with side brush option only: Press the side brush switch to activate the side brush.

8. Drive the machine to circulate the RV antifreeze completely through all the systems and clear out any remaining water.
9. Machines with side brush option only: Press the side brush switch to turn off the side brush.
10. Stop the machine.
11. Machines with spray nozzle option only: Operate the wand for a few seconds to protect the pump.
12. Press the 1-STEP button to turn off the system.
13. Turn off the machine.
14. The remaining RV antifreeze does not need to be drained from the solution or recovery tank.

All Propylene Glycol Based / Recreational Vehicle (RV) Antifreeze must be completely cleaned from the scrubbing system before the machine can be used for scrubbing.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​‌‌‌⁠​​​‌​‍⁠⁠‌‍⁠‌⁠⁠‍‍‌‍‌​‌‍​‌‌⁠‌‍⁠​⁠‌

1. Completely drain all Propylene Glycol Based / Recreational Vehicle (RV) antifreeze from the solution tank.
2. Rinse out the solution tank. Refer to DRAINING AND CLEANING THE SOLUTION TANK in the OPERATION section for instructions how to clean the solution tank.
3. Pour 3 gal (11.4 L) of cool clean water into the solution tank.

4. Start the machine
5. Press the 1-STEP button.

6. Repeatedly press the Solution increase button (+) until the solution flow is at the highest setting.

7. Machines with ec-H2O option only: Press the scrub mode button to place machine into the ec-H2O mode. The indicator light will illuminate.

NOTE: The ec-H2O systems on machines equipped with ec-H2O must be primed before the machine is ready for operation. See PRIMING THE ec-H2O SYSTEM for additional instructions.

Prime the ec-H2O system if the machine has been stored for a long period with no water in the solution tank / ec-H2O system.‌‌​⁠​‌⁠‌​⁠‌‍‍‌⁠‍​‍⁠⁠​​​​‌‌‍‌​​​‌​‍⁠⁠​​​‌‌​​​⁠‌‌⁠​⁠‌​​​​⁠​‍‍‌

1. Fill the solution tank with clean cool water. See FILLING THE SOLUTION TANK section of this manual.

2. Lift the operator seat open and engage the seat support.
3. Remove the drain hose from the ec-H2O compartment.

4. Disconnect the outlet hose to the scrub head from the ec-H2O manifold.

5. Place the drain hose into an empty container.
6. Connect the drain hose to the ec-H2O manifold hose disconnected from the outlet hose in the previous step.

7. Place the ec-H2O system outlet hose into an empty container.

8. Start the machine.