Tennant T16 Operator Manual

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 14.5 in (368 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 and insert the seat support arm into the hole in the operator seat plate.

3. Remove the accessory box and tray.

4. With adequate assistance 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.

5. Using the supplied battery post boots, connect the cables to the battery posts, RED TO POSITIVE (+) & BLACK TO NEGATIVE (−).
6. Reinstall the accessory box and tray.

IMPORTANT: Make sure that the charger is properly set for the battery type before charging (See ON-BOARD CHARGER SETTINGS).

Lithium-ion battery (lithium-ion case battery)

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

Lithium-ion battery (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 and insert the seat support arm into the hole in the operator seat plate.

3. Remove the accessory box and tray.

4. 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 if installing the smaller batteries.

Machines equipped with 3 batteries.‌‌​⁠‌‍⁠‍​⁠⁠‍‍⁠‍‌⁠‍​​​​​​​‌​‌​​​‌​‍⁠⁠⁠‍​‌‌‍‌⁠‌‌​‍⁠‌​‍‍​‍⁠⁠‌‍‌

Machines equipped with 4 batteries.

5. Using the supplied battery post boots, connect the cables to the battery posts, RED TO POSITIVE (+) & BLACK TO NEGATIVE (−).
6. Reinstall the accessory box and tray.

IMPORTANT: Make sure that the charger is properly set for the battery type before charging (See ON-BOARD CHARGER SETTINGS).

7. 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 battery discharge indicator will not reset from the flashing indicator (lowest bar on the indicator) unless the batteries have been fully charged.

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 indicator

The recovery tank indicator displays the amount of liquid in the recovery tank. All scrubbing functions will stop when the recovery tank is full. Empty the recovery tank when the indicator reaches 100%.

Solution tank indicator

The solution tank indicator displays the amount of liquid in the solution tank. Refill the solution tank when there are no longer any bars shown in the display. The machine will stop scrubbing when the solution tank is empty.

Power kill switch

The power kill switch immediately stops all power to the machine.‌‌​⁠‌‍⁠‍​⁠⁠‍‍⁠‍‌⁠‍​​​​​​​‌​⁠​​​‌​‍⁠⁠​‍⁠‍​​⁠​‍​‌​​‍‍‌​​​‌‌‍‌​

Stop machine power: Press the power kill switch.

Restart machine power: Turn the power kill switch to the right to release the switch. Turn the key switch off, 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.

Operating / hazard light switch (option)

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

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

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

Seat support arm

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

To engage the seat support arm, lift the seat completely open and insert the seat support arm into the hole in the operator seat plate.

Operator seat

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

Deluxe suspension seat (option)

The operator seat has four adjustments: backrest angle, operator weight, lumbar, and front to back.

Use caution when tilting the deluxe seat. The deluxe seat is heavier than the standard seat.

The backrest adjustment knob adjusts the angle of the backrest.

The weight adjustment knob controls the firmness of the operator seat. Use the gauge next to the weight adjustment knob to help determine seat firmness.

The lumbar knob adjusts the lower backrest portion of the seat.

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

Seat belts

Contrast control button

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.

Brake pedal

Press the Brake pedal to stop 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.

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 ES (Extended Scrub) mode, the dirty solution in the recovery tank is filtered through the ES system and returned to the solution tank for reuse. Detergent is then injected into the returned solution to revitalize the cleaning capability of the solution.

When in the optional FaST (Foam scrubbing) mode, the FaST scrubbing system mixes the FaST-PAK concentrate with a small amount of water, creating a large volume of expanded wet foam. The FaST system can be used with all scrubbing applications.

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) – Quickly and easily cuts through old finish to prepare the floor for recoating.

Scrubbing pad (Blue) – Removes dirt, spills, and scuffs. Leaves a clean surface ready for recoating.

Buffing pad (Red) – Quickly cleans and removes scuff marks while polishing the floor to a high gloss.

Polishing pad (White) – Maintains a high gloss. Use for buffing very soft finishes and lower traffic areas, and polishing soft waxes on wood floors.

High productivity pad (Black) – Aggressively strips floor finishes/sealers. Use 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) – Aggressively strips floors without use of chemicals.

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.

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

Foam scrubbing (FaST mode) / ec-H2O scrubbing (ec-H2O mode)

1. Open the solution tank cover.

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 a FaST or ec-H2O system failure may result. Fill the solution tank with water until the level is approximately 2 in (50 mm) below the indicator tab.

NOTE: Do not use the FaST or 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 FaST or ec-H2O system. Conventional cleaning detergents may cause a FaST or ec-H2O system failure.

3. Close the solution tank cover.

1. Open the solution tank cover.

2. Fill solution tank with water (not to exceed 140°F (60°C)). Fill the solution tank with water until the level is approximately 2 in (50 mm) below the indicator tab. Close the solution tank cover.

3. Open the recovery tank cover.

4. Fill the recovery tank with water (not to exceed 140°F (60°C)). Fill the recovery tank to just above the top of the ES filter. Close the recovery tank cover.

The Scrub mode button enables the scrubbing functions to come on when the 1-STEP button is activated. The light and cleaning system logo next to the button will come on. The machine will default to the last setting used when it is powered on or off.‌‌​⁠‌‍⁠‍​⁠⁠‍‍⁠‍‌⁠‍​​​​​​​‌⁠⁠​​​‌​‍⁠⁠​‌‍‍‍​‍⁠​​‍‍⁠⁠‌​⁠‍⁠‍​⁠⁠‌

NOTE: When the ES system is turned on there is a slight delay before the ES pump begins operating.

Setting brush pressure

Under normal cleaning conditions, the brush pressure should be set to the lowest setting (the bottom light). Under heavy grime conditions, the brush pressure can be set to a higher setting (the top two lights). Travel speed and floor conditions will affect cleaning performance.

With the 1-STEP button activated, press the Brush pressure button to set the brush pressure. Use the Brush pressure button to both raise or lower the brush pressure settings. 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.

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. 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.

NOTE: When using the FaST or ec-H2O system (option), the solution flow increase and solution flow decrease buttons are nonfunctional. The FaST and ec-H2O system flow rates are pre-set. All three solution flow indicator lights will be lit if the machine is in the ec-H2O or FaST mode.

Conventional solution flow

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).

ES (Extended Scrub) solution flow

For ES machines, the detergent flow is turned off when the solution flow is in the lowest setting (one light). The middle setting (two lights) and highest setting (three lights) allow solution AND detergent flow. The lowest setting (one light) allows solution flow WITHOUT adding detergent. Detergent does not have to be continuously added with the solution flow to attain effective scrubbing results. Under normal soilage conditions, the solution flow level should be alternated between the middle and lowest setting.

Severe environment switch (option)

The Severe environment switch provides a detergent boost for areas with extraordinary dirt or soil buildup.‌‌​⁠‌‍⁠‍​⁠⁠‍‍⁠‍‌⁠‍​​​​​​​‍​​​​​‌​‍⁠⁠‍‍‌‍‌‍‍⁠​​‌‌‍‍​‌​⁠‌⁠⁠‌‍‌

Press the top of Severe environment switch to operate 30 seconds of detergent aided cleaning and the bottom to provide five minutes of detergent aided cleaning. The lights in the switch display which setting is activated.

NOTE: This switch can be configured to allow different flow times. Contact a Tennant service representative to change the default flow times.

The ec-H2O scrubbing mode is temporarily disabled when the severe environment switch is activated. The ec-H2O mode automatically comes back on when Severe environment switch is timed out / turned off.

The solution flow and brush pressure default to the highest / heaviest settings when the Severe environment switch is activated but can be adjusted to lower / lighter settings. See SETTING BRUSH PRESSURE section and SETTING SOLUTION FLOW section.

Detergent metering (option)

The Detergent Metering switch provides a continuous increased detergent flow for areas with extraordinary dirt or soil buildup.

Press the top of the switch to increase detergent flow. Press the bottom of the switch for even more increased detergent flow. The lights in the switch display which setting is activated.

NOTE: This switch can be configured to allow different flow rates. Contact a Tennant service representative to change the default flow rates.

1. Start 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 scrub mode button to select the scrub mode (ec-H2O, FaST, or ES). The indicator light and mode logo 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 FaST or ec-H2O system during conventional scrubbing. Conventional cleaning detergents could cause a FaST or ec-H2O system failure. Drain, rinse, and refill the solution tank with cool clean water before operating the FaST or 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 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.

Corrected an obvious misprint: “warning / fault indicator indicator light” printed with the word “indicator” twice (now once, as in the touch panel list on page 12).

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

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

Pre-sweep and side brush (option) machines: Leave the Pre-sweep and side brush (options) in the raised position while double scrubbing.

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 Scrub 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.

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. ES machines: Rinse the ES filter at the bottom of the tank and the sensor near the top of the tank.

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

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

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

9. 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.

10. Close the recovery tank cover.
11. 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 (ES machines only)

ES machines: The solution tank should be drained and cleaned when the recovery tank is drained and cleaned.‌‌​⁠‌‍⁠‍​⁠⁠‍‍⁠‍‌⁠‍​​​​​​​‍‌‍​​​‌​‍⁠⁠​​‍​‍⁠⁠⁠‌‌⁠‌​​‍​‌‍​‍⁠‌​‌

Clean the outside of the tank with vinyl cleaner.

1. Drive the machine near a floor drain.

2. Unhook 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. Lift the solution tank cover and flush out the solution tank with clean water. Rinse the filter and sensor located inside the solution tank.

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 solution tank.

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.

Fault indicator(s)

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.

Refer to the table below to determine the cause and remedy for the fault.

Options

Side brush (option)

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

1. Turn on the machine
2. Press the 1-Step button.
3. Press the top of the side brush switch to lower and start the side brush.

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

Pre-Sweep assembly (option)

The Pre-Sweep assembly is mounted to the front of the machine and gives the machine the added ability to pick up debris. The assembly contains a main brush and two side brushes which sweep debris into a debris hopper. Periodically empty the debris hopper and vacuum debris bag.

The machine may be operated with or without the Pre-Sweep assembly. Refer to PRE-SWEEP in the MAINTENANCE section for maintenance.

1. Turn on the machine
2. Press the 1-Step button.

NOTE: Do not press the 1-Step button if only using to sweep. The Pre-Sweep can be used without the scrubbing features.

3. Press the Pre-Sweep switch to the middle position to start the Pre-Sweep without dust control.
   Press the Pre-Sweep switch to the top position to start the Pre-Sweep with dust control.

NOTE: The Pre-Sweep assembly will begin sweeping and the dust control system will start operating when the machine propels forward.

4. Press the bottom of Pre-Sweep switch to shut off the Pre-sweep system and dust control system.

Empty the pre-sweep debris hopper

1. Lift the Pre-Sweep assembly cover and lock the cover open.

2. Remove the debris hopper from the Pre-Sweep assembly and empty the hopper.

3. Reinstall the debris hopper into the Pre-Sweep assembly.

4. Check the vacuum debris bag. Replace the vacuum debris bag if it is full or damaged.

5. Unlock and lower the Pre-Sweep cover.

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

6. Vacuum the floor.

7. When finished vacuuming, press the Vacuum fan/squeegee button to turn off the vacuum fan. The squeegee will raise.
8. Turn off the machine.

9. 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.

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

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

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.

Rollout battery (option)

The rollout battery allows the operator a quick and easy way to remove and replace the batteries from the machine.‌‌​⁠‌‍⁠‍​⁠⁠‍‍⁠‍‌⁠‍​​​​​​​‍⁠‍​​​‌​‍⁠⁠‌‌‌‍‍⁠‌‍​‌⁠‌‍⁠⁠‍⁠⁠⁠‌​⁠‌‍

1. Lift the operator seat and engage the seat support arm.
2. Open the battery compartment door.

3. Disconnect the machine connector from the batteries.

4. Push the battery cart to the operator side of the machine and align the battery cart with the battery compartment.

5. Rotate the rollout battery retainer handle toward the front of the battery compartment, lower the rollout battery retainer plate, and insert the retainer plate catch into the slot in the battery cart.

NOTE: The retainer plate catch must be completely inserted into the slot in the battery cart to hold the battery retainer handle up and allow the batteries to be safely pulled from the battery compartment.

6. Step on the left side of floor lock to set the battery cart floor lock.

7. If necessary, adjust the height of the battery cart rollers. The battery cart rollers must be level with the machine battery rollers. Adjust the height on both sides of the battery cart.

Raise battery cart rollers: Use a wrench to loosen the jam nut and turn the bolt clockwise. Retighten the jam nut.‌‌​⁠‌‍⁠‍​⁠⁠‍‍⁠‍‌⁠‍​​​​​​​‍⁠⁠​​​‌​‍⁠⁠‌‍‍​⁠⁠‍‍​⁠‌‍‍‍​‍‍⁠​⁠‍‍⁠⁠

Lower battery cart rollers: Use a wrench to loosen the jam nut and turn the bolt counter-clockwise. Retighten the jam nut.

8. Pull the battery case onto the battery cart.

9. Pull up on the handle to lower the cart battery stop bar. This will keep the batteries from rolling off the cart.

10. Raise the rollout battery retainer plate to release the battery cart from the machine.
11. Release the battery cart floor lock.
12. Pull the battery cart away from the machine.
13. Perform the previous steps in the reverse order to install batteries into 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.

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

NOTE: DO NOT get water on electronic components when using the spray nozzle to clean the machine.

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.

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

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.

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 the machine power off.

3. Lift the operator seat open, engage the seat support bar, then remove the accessory box and tray.

NOTE: Make sure the batteries have the proper electrolyte level before charging. If applicable, 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.‌‌​⁠‌‍⁠‍​⁠⁠‍‍⁠‍‌⁠‍​​​​​​​⁠‍⁠​​​‌​‍⁠⁠‌‌​‌⁠‍‍‍​⁠​‍​‍‍‍‍​​​‍‍⁠‌

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

3. Lift the operator seat open, engage the seat support bar, then remove the accessory box and tray.

NOTE: Make sure the batteries have the proper electrolyte level before charging. If applicable, 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 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), LITH=Lithium.

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.

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:

A. Charge profile number
B. Charger rating (Volts and Current)
C. Battery voltage (Volts)
D. Charger current (Amperes)
E. Ampere hours charged
F. Time charged (hours / minutes / seconds)
G. 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.

1. Lift the operator seat open, engage the seat support bar, then remove the accessory box and tray.

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.

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 10 are located in the front of the battery compartment.

Circuit breakers 11 through 19 are located on the electrical panel.

Circuit breaker 20 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.

Electric motors

Inspect the carbon brushes on the vacuum fan motor after every 500 hours of operation. Inspect the carbon brushes on the main brush motors, Pre-Sweep main brush motor, and side brush motors after the first 1000 hours of operation and every 100 hours after the initial check. Refer to the table below for carbon brush inspection intervals.

*Inspect carbon brushes every 100 hours after the initial 1000 hour change.

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 down to the yellow indicators.

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 left side squeegee support door.

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

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

6. Set the brush spring open on the new brush to make the brush 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 left side squeegee assembly.
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 side squeegee support door.
2. Lift the idler plate retainer handle and unhook the retainer ring from the idler plate hook.

3. Remove the idler plate from the scrub head.

4. Remove the brush from the scrub head

5. Position the brush with the double row end towards the scrub head opening. Guide the new brush onto the drive hub.
6. 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.

7. Reinstall the idler plate onto the scrub head and secure the idler plate into place with the idler plate retainer.
8. Repeat for the other brush on the other side of the scrub head.

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

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 down to the yellow indicators.

1. Start the machine and press the side brush switch.
2. Shut off the machine after the side brush rotates from under the side guard, but before the side brush assembly lowers to the floor.

3. Remove the knobs holding the side brush squeegee assembly to the machine and remove the squeegee assembly from the machine.

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

5. Remove the side brush from under the side brush assembly.
6. Set the brush spring open on the new brush to make the brush installation easier.

7. 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.
8. Reinstall the side brush squeegee assembly onto the side brush assembly.

The Pre-Sweep assembly is equipped with disk side brushes and a cylindrical main brush. Check the brushes daily for wire or string tangled around the brush or brush drive hub. Check the brushes daily for damage and wear.‌‌​⁠‌‍⁠‍​⁠⁠‍‍⁠‍‌⁠‍​​​​​​‌​⁠​​​​‌​‍⁠⁠​⁠⁠‍⁠⁠‍​‌⁠‌‌​‌​‍⁠​‌​​‍⁠​

Replacing the Pre-Sweep disk brushes

Replace the brushes when they no longer clean effectively.

1. Turn on the machine.
2. Press the bottom of the Pre-Sweep switch to raise the Pre-Sweep assembly and stop sweeping.

3. Turn off the machine.

4. Reach into the center of the brush and pull the cotter pin from the hub assembly.

5. Remove the side brush from under the Pre-Sweep assembly.
6. Install the new side brush onto the Pre-Sweep side brush assembly.

Replace the brush when it no longer cleans effectively.‌‌​⁠‌‍⁠‍​⁠⁠‍‍⁠‍‌⁠‍​​​​​​‌​⁠‌​​​‌​‍⁠⁠‌‌‌⁠‌‍⁠⁠⁠⁠⁠‍‌​​​⁠⁠⁠⁠​‍​⁠

1. Turn off the machine.
2. Open the Pre-Sweep assembly cover and lock the cover open.
3. Loosen and remove the left brush arm knob.

4. Remove the left brush arm.

5. Remove the three knobs holding the Pre-Sweep side skirt and side skirt plate to the Pre-Sweep assembly.

6. Remove the side skirt plate and side skirt from the Pre-Sweep assembly.

7. Remove the cylindrical brush and replace with a new brush.

8. Guide the slotted end of the new brush onto the drive hub.
9. Reinstall the side skirt, side skirt plate, and left brush arm.

Replacing the FaST-PAK carton

1. Lift the operator seat open and engage the seat support bar.
2. Squeeze the button on the FaST supply hose connector, then pull the empty FaST-PAK carton out from the compartment and discard.

3. Remove the perforated knock outs from the new FaST-PAK carton. DO NOT remove the bag from the carton. Pull the hose connector from the bottom of the bag and remove the hose cap from the connector.

NOTE: The FaST-PAK Floor Cleaning Concentrate is specially designed for use with the FaST system scrubbing application. NEVER use a substitute. Other cleaning solutions may cause FaST system failure.‌‌​⁠‌‍⁠‍​⁠⁠‍‍⁠‍‌⁠‍​​​​​​‌​⁠‍​​​‌​‍⁠⁠‌‍⁠‍​⁠⁠​​‌​⁠‌‌‌‌‌​‌​‍⁠‍⁠

4. Slide the FaST-PAK carton into the FaST-PAK bracket.

5. Connect the FaST supply hose to the FaST-PAK hose connector.
6. Scrub with the FaST system for a few minutes to allow the detergent to reach maximum foaming.

Cleaning the FaST supply hose connector

Soak the connector in warm water if detergent buildup is visible. When a FaST-PAK carton is not installed, store the supply hose connector on the storing plug to prevent the hose from clogging.

Replacing the FaST injector filters

Replace the FaST injector filters after every 1000 hours of operation. Empty the solution tank before replacing the filters.

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 bar.
2. Remove the ec-H2O compartment cover.

3. Remove the drain hose from the ec-H2O compartment.

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

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

6. Place the drain hose into a empty container.
7. Pour 2 gallons (7.6 liters) of white or rice vinegar into the solution tank.

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 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 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 side squeegee assembly.

8. Fasten the retaining band latch onto the side squeegee assembly.
9. 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. Start the machine and press the side brush switch.
2. Shut off the machine after the side brush rotates from under the side guard, but before the side brush assembly lowers to the floor.

3. Remove the knobs holding the side brush squeegee assembly to the machine and remove the squeegee assembly.

4. Loosen the retaining band latch.

5. Remove the squeegee blades and retainer 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.

Pre-Sweep side skirts (option)

The side skirts are located on both sides of the Pre-Sweep assembly. The side skirts should be just touching the floor.‌‌​⁠‌‍⁠‍​⁠⁠‍‍⁠‍‌⁠‍​​​​​​‌‌‍‍​​​‌​‍⁠⁠‍‍​‌⁠‌‍‌‍‌​​⁠‌⁠‍‌​‌​⁠​⁠⁠

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

Pre-Sweep recirculation skirt (option)

The Pre-Sweep recirculation skirt is located behind the main sweeping brush.

Check the skirt for damage and wear after every 50 hours of operation.

Pre-Sweep rear skirt (option)

The Pre-Sweep rear skirt is located behind the recirculation skirt and main sweeping brush.

Check the skirt for damage and wear after every 50 hours of operation.

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

Pre-Sweep brush drive belt (option)

The Pre-Sweep brush drive belt is located inside the Pre-Sweep assembly on the right side of the cylindrical brush. Check the belt 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.

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

NOTE: The machine ability to climb a ramp is affected by tire wear, ramp surface, weather conditions, and other factors. Trailering should only be performed by personnel trained on how to safely load a machine.‌‌​⁠‌‍⁠‍​⁠⁠‍‍⁠‍‌⁠‍​​​​​​‌‌⁠‌​​​‌​‍⁠⁠‍‌‍⁠​‍‌​‌​⁠⁠‍⁠​‍​⁠‍‌‌‌‍‌

2. Drive the machine onto the trailer or truck. Position the machine so the weight of the machine is safely distributed and can be safely strapped down to the trailer or truck.
3. Lower the scrub head and block the machine tires. Tie down the machine to the truck or trailer before transporting.

The front tie-down locations are the stabilizer legs.

The rear tie-down locations are the holes in the frame.

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

Storage information

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 (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.

1. Machines equipped with FaST: Remove the FaST-PAK.
2. Completely drain the solution tank and recovery tank.
3. Disconnect the hose from the solenoid valve inlet port located on the bottom of the frame and allow all remaining solution to drain from the system.

4. Use between 2 – 4 psi (13.8 – 27.6 kPa) of compressed air to blow remaining solution from the disconnected hose.
5. Reconnect the hose to the solenoid valve inlet port.
6. Pour 2 gal (7.6 L) of Propylene Glycol Based / Recreational Vehicle (RV) antifreeze into the solution tank.

7. Turn on the machine
8. Press the 1-STEP button.

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

10. Drive the machine to circulate the RV antifreeze completely through the system.
11. Press the 1-STEP button to turn off the system.
12. Machines equipped with the optional spray nozzle only: Operate the wand for a few seconds to protect the pump.
13. Turn off the machine.
14. The remaining RV antifreeze does not need to be drained from the solution tank.

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. Turn on 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. Drive the machine to circulate the clean water completely through the system to clean out the RV antifreeze.
8. Press the 1-STEP button to turn off the system.
9. Machines equipped with the optional spray nozzle only: Operate the wand for a few seconds to clean the RV antifreeze from the pump.
10. Turn off the machine.
11. The remaining water does not need to be drained from the solution tank.

1. Completely drain the solution tank and recovery tank.
2. Disconnect the hose from the solenoid valve inlet port located on the bottom of the frame and allow all remaining solution to drain from the system.

3. Use between 2 – 4 psi (13.8 – 27.6 kPa) of compressed air to blow remaining solution from the disconnected hose.
4. Reconnect the hose to the solenoid valve inlet port.
5. Lift the operator seat open and engage the seat support bar.
6. Remove the ec-H2O compartment cover.

7. Remove the drain hose from the ec-H2O compartment.

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

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

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

2. Remove the ec-H2O compartment cover.

3. Remove the drain hose from the ec-H2O compartment.

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

5. Place the drain hose into an empty container.
6. Turn on the machine.
7. Press and release the ec-H2O module flush switch. Allow the system to drain water into the container for 2 minutes.

8. Press the ec-H2O module flush switch to shut off the system.
9. Disconnect the drain hose from the ec-H2O manifold hose.
10. Reconnect the outlet hose to the scrub head to ec-H2O manifold hose.
11. Place the drain hose back into the ec-H2O compartment.
12. Reinstall the ec-H2O compartment cover.
13. Close the operator seat cover.