Maintenance

Daily Maintenance:

1. Remove and clean pads or brushes. Never use soiled pads when cleaning. Replace pads when they become packed with residue.

2. Remove and clean debris from the float shut‐off screen and drain saver located inside the recovery tank.

3. Drain and rinse tanks thoroughly

4. Inspect vacuum hose for any objects obstructing the air flow.

5. Raise squeegee and wipe blades with a clean cloth. Store squeegee in the raised position to prevent damage or setting of the blades.

6. Wipe down machine if needed. Use a nonabrasive, non solvent cleaner, or a clean damp cloth.

7. Recharge the batteries if needed.

Weekly Maintenance:

1. Check battery water level in each cell of the batteries, and fill as needed. Always use distilled water to refill batteries. Batteries should be filled approximately 3/4" to 1" above the plates. Overfilling will cause the batteries to leak during charging. The charging process creates gas bubbles inside the battery, which effectively increases the volume of the electrolyte.

2. Clean battery tops to prevent corrosion.

3. Rotate brushes. Rotate the left to the right and right to left. For cylindrical models rotate from front to back, or end to end if using different materials.

4. Drain and rinse tanks thoroughly. To thoroughly flush out any solution chemicals in solution line and valves, refill solution tank with a few gallons of warm clean water and run machine until tank is empty.

Monthly Maintenance:

1. Check scrub head and squeegee lifting cables for wear and spring tension.

2. Check machine for water leaks and loose nuts and bolts.

3. Check to see if battery cables are tightened (Tighten if needed)

4. Check parking brake

Yearly Maintenance:

1. Call your local dealer for yearly maintenance

Storing Machine:

1. Make sure to flush the tanks out completely. To thoroughly flush out any solution chemicals in solution line and valves, refill solution tank with a few gallons of warm clean water and run machine until tank is empty.

2. Open the recovery tank lid to promote air circulation.

3. Raise brushes and squeegee.

Checking Battery Specific Gravity:

Use a hydrometer to check the battery specific gravity.

Checking Gravity

A. Hydrometer

B. Battery

Note: Do not take readings immediately after adding distilled water, if water and acid are not thoroughly mixed, the reading may not be accurate.

Check the hydrometer against this chart:

Specific Gravity @ 80° F (27°C)	Battery Condition
1.265	100% CHARGED
1.225	75% CHARGED
1.190	50% CHARGED
1.155	25% CHARGED
1.120	DISCHARGED

Note: if the readings are taken when the battery electrolyte is any temperature other than 80vF (27vC), the reading must be temperature corrected.

To find the corrected specific gravity reading when the temperature of the battery electrolyte is other than 80vF (27vC): add (+) to the specific gravity reading 0.004 (4 points), for each 10vF (6vC) above 80v (27vC). Subtract (‐) from the specific reading 0.004 (4 points), for each 10vF (6vC) below 80vF (27vC).

Preventative Maintenance Records:

CUSTOMER INFORMATION
CUSTOMER
ADDRESS
CITY			STATE	ZIP CODE

MACHINE INFORMATION
MODEL #			SERIAL #
WORK ORDER#			HOUR METER:

BATTERY CONDITION Cell #1 Cell #2 Cell #3 Cell #4 Cell #5 Cell #6
Battery # 1 Hydrometer
Battery # 1 Water Condition
Battery # 2 Hydrometer
Battery # 2 Water condition
Battery # 3 Hydrometer
Battery # 3 Water Condition
Battery # 4 Hydrometer
Battery # 4 Water condition

Clean Battery tops. Check Battery Cable and Terminal Condition
NOTES:

BRUSH CONDITION
Scrub Brush Fiber Length		Rota ted Brushes
Brush Drive Sockets	Good Worn Needs Replacement
Drive Hubs	Good Worn Needs Replacement

CHECK OPERATION AND CONDITION OF: IN SPEC REPAIR PROBLEM
Ma in Power Switch or Key Switch
Handle Bar Switches
Speed Potentiometer
Reverse Switch
LCD Display
Page Switch
Brush Pres sure Switch
Brush Pres sure Managers Lock Out
Reverse Switch
Brush Switch
Brush Deck Lift Sys tem
Brush Motor
Brush Drive Belt
Solution Potentiometer
Solution Solenoid
Vacuum Switch
Vacuum Motor Performance
Vacuum Filter
Recovery Drain Hose & Plug
Squeegee Lift Sys tem
Squeegee Adjustment

CHECK OPERATION AND CONDITION OF: IN SPEC REPAIR PROBLEM
Spray Jet Switch
Spray Jet Pump, Hose & Nozzle
Battery Charger Connectors
Battery Charger

CLEAN AND/OR LUBRICATE IN SPEC REPAIR PROBLEM
Solution Filter
Squeegee Pivot Points & Knobs
Scrub Deck Linkage
Caster grease fittings
Squeegee Knob Threads
Squeegee Pivot Points
Brush Head Pivot Points

VISUALLY INSPECT: IN SPEC REPAIR PROBLEM
Solution Tank Condition
Recovery Tank & Lid Condition
Drain Saver
Vacuum Float
Vacuum Motor Brushes
Vacuum Hoses
Vacuum Filter
Solution Hoses
Squeegee Tool and Throat
Squeegee Blades
Blade retainers & Hardware
Squeegee Wheels
Brush Skirts
Brush Motor Brushes
Brush or Pa d Driver Condition
Drive Wheel Condition
Caster Condition

Technician's Name: ___________________________

Technician's Signature: ___________________________ Date:_______________

Customer's Name: ___________________________

Customer's Signature: ___________________________ Date:_______________

Troubleshooting

Troubleshooting Central Command

NOTE: This machine is operated by a sophisticated electronic "CONTROLLER" that has many fail‐safes within it. The controller self‐analyzes problems and flashes a four‐digit numeric code of what is wrong in the LCD window.

Most of these codes require a technician's attention. You should not attempt repairs you are uncomfortable with, especially if you are not used to working on electronics.

The complete list of codes is published in the simplified electronic troubleshooting manual, which is available to technical people. However, we have included the basic codes that you can usually resolve yourself.

1. 1E03 AND 1E04 ERROR. Check the small safety switch next to the red plug below the dashboard. This switch will turn off the traction drive and brushes as a safety feature while the charger is plugged in. The switch may be stuck, or the plug twisted at an angle, engaging the switch. This code will also flash if the wiring becomes very wet. In this case, either wait until the wiring dries out, or call a technician.

2. 7601 AND 7602 ERROR. Pads or brushes current over load. This can occur when the pads/brushes hit a bump in the floor. To restart the pads, turn off the key and turn it on again. To avoid this error, either slow down on bumpy parts of the floor, or reduce down pressure on the pads or brushes.

3. 1600 ERROR. Voltage exceeds the maximum. Either the batteries are mis‐wired, or the charger is still plugged into the machine.

4. 7700, 7701, 7702, AND 7703 ERROR. The vacuum motor has exceeded its authorized power limit. Turn off main power switch and turn on again to clear.

5. 7900 AND 7901 ERROR. The emergency stop button is out.

6. HIGH THROTTLE ERROR. You pressed the drive button before turning on the key. Turn off the key, release the drive button and try again.

7. 2C00 AND 2C01 ERROR. Low voltage warning. Voltage has dropped down below the minimum required to operate the machine. If you wait a few minutes, the batteries may coast up a bit in voltage, allowing you to drive very slowly to the recharge station.

8. 7802 ERROR. The traction motor was used to climb a ramp, and was running up the ramp for more than the 60 seconds allowed for this. Turn off the key, turn on again, and continue. You should not use this machine to climb ramps so steep and so long that this code comes up repeatedly, or you could overheat and damage the traction motor.

9. All other error codes. Turn off the main power switch and disconnect the positive battery cable from the batteries for more than one minute (the time is needed to drain the controller's on‐board capacitor). Reconnect the cables being sure they are tight; too loose will burn the batteries. If you over tighten the cables you can damage the battery's lead terminal. Try again.

10. If the problem cannot be solved by any of these remedies call your local dealer's service department.

Trouble Shooting:

Problem

Cause

Solution

No power, nothing operates

Faulty power switch

Batteries need charging

Faulty battery

Loose battery cable

Main circuit breaker tripped

Contact local servicing dealer

See charging batteries

Replace battery

Tighten loose cable

Wait 5 minutes for auto reset

Determine cause and correct

Brush motor does not operate

Green button is not depressed

Circuit breaker tripped

Carbon brushes worn

Faulty brush motor or wires

Depress button on handle bar

Reset & reduce pressure

Determine cause and correct

Contact local servicing dealer

Vacuum motor does not operate

Faulty vacuum switch

Circuit breaker tripped

Faulty vacuum motor

Carbon brushes worn

Replace switch

Reset & check hose

Determine cause and correct

Contact local servicing dealer

Insufficient solution flow

Solution tank low

Flow knob turned down

Solution filter clogged

Solution line clogged

Solution valve clogged

Refill solution tank

Turn knob more open

Remove cover and clean

Remover and blow out with compressed air

Remove cover and clean

No solution flow

No Solution in Tank

Solution switch off

Solution screen clogged

Faulty solution solenoid

Faulty solution switch

Fill solution tank

Turn solution switch on

Remove and clean screen

Contact local servicing dealer

Poor water recovery

Recover tank is full

Ball/screen is clogged

Vacuum hose is clogged

Squeegee is clogged

Squeegee blade is worn

Faulty vacuum hose

Vacuum motor gasket torn

Tank gasket faulty

Drain plug loose

Vac motor faulty

Battery charge low

Empty recovery tank

Remove screen and clean

Remove debris

Rotate or replace blades

Contact local servicing dealer

Tighten plug

Contact local servicing dealer

Charge batteries overnight

Poor water recovery on turns

Wipers worn

Wipers chatter

Squeegee swing is binding

Incorrect squeegee size

Replace wiper material

Tighten pivot points

Contact local servicing dealer

Tires noisy

Bearing dry

Faulty hubs

Grease bearings

Contact local servicing dealer

Poor traction

Excessive brush pressure

Worn drive tire

Heavy soap concentration

Reduce pressure with switch

Replace tires

Contact local servicing dealer

Short run time

Batteries run down

Batteries still down

Batteries low on water

Batteries over cycled

Charge batteries twice

Contact local servicing dealer

Fill with distilled water to ¾” above the lead plates

Contact local servicing dealer

Common Wear Parts

Table 1 - Brushes

Brush repair kit: 40-423 Replacement locating clip for all brushes

Table 2 - Pads

NOTE: # In Disk Column Denotes Pad Size: 13, 15, 17

Extra pad driver retaining clip: 40-433

Table 3 - New Style Cylindrical Brushes For Machine Serial Numbers #50000 or Greater

Table 4- Old Style Cylindrical Brushes For Machines Prior to Serial #50000

Table 5 - Squeegee blade kits & Complete Squeegee Assemblies

NOTE: Squeegee blade kits include (1) Rear Blade, (1) Front Blade, and (2) Backup Wheels with hardware.

NOTE: Squeegee Assemblies (complete) listed above all come with Linatex blades.

NOTE: Size is stamped into the top of the painted steel squeegee body on all squeegees.

NOTE: The 32" squeegee is designed for narrow aisles and may not have the same water control around tight turns as the larger squeegees.

Battery Maintenance Guide

SAFETY:

Always wear protective clothing, gloves and goggles when handling batteries

If acid contacts your skin or eyes, flush with water immediately

Keep flames, sparks and metal objects away from batteries

Charge batteries in a well-ventilated area

To avoid short circuits do not lay objects on top of battery

Check that all cable connections to the terminal are properly tightened; connections that are too tight or too loose could result in post breakage, meltdown or fire

INSPECTION & CLEANING:

Keep batteries clean and dry from residue

Check that all vent caps are tight

Use a solution of baking soda and water to clean if there is acid residue on batteries or corrosion on the terminals

Protective spray or petroleum jelly should be applied to terminals to reduce corrosion

STORAGE:

Batteries should be fully charged prior to and during storage

Never store discharged batteries

Store batteries in a cool, dry place

Recharge batteries before putting them back into service

WATERING:

ADD WATER, NEVER ACID, TO CELLS (distilled water recommended)

DO NOT OVERWATER

Before charging the batteries, only add water if the plates are exposed. Add just enough water to cover the plates, and then charge the batteries. Once fully charged, add water to the proper level as indicated below

For fully charged standard deep cycle batteries, add water to level of 1/8" (3 mm) below bottom of vent well (see diagram A)

For fully charged Plus Series batteries, add water to the maximum water level indicator (see diagram B)

After watering, secure vent caps back on batteries

Diagram A

Diagram B

Maximum Battery Size for Replacement

Dimensions Inches (mm)
Length	Width	Height
10 3/8” (264)	7 1/8” (181)		10 7/8” (276)