59
Maintenance
PROBLEM
CAUSE
SOLUTION
Vacuum motor does not run, or
runs slowly
Faulty vacuum circuit or switch
Check wires connections and motor
Worn vacuum motor brushes
Replace brushes, check commutator
Squeegee will not go up/down
Faulty circuit or actuator
Check wires, connectors and actuator
Faulty cables or pulleys
Repair/replace cables or pulleys
Poor scrubbing performance
Debris caught in scrub brushes
Remove debris
Worn brushes or pads
Replace brushes or pads
Improper detergent, brush or pad used
Contact equipment or application
specialists
Low battery charge
Charge batteries
Little or no solution flow to the
floor
Solution tank empty
Fill solution tank
Solution strainer plugged
Clean solution strainer
Solution system plumbing obstructed
Clear obstruction from plumbiing
Solution solenoid valve obstructed or
faulty
Repair or replace solenoid valve
Brush motors do not run, or run
slowly
Low battery charge
Charge battery
Faulty brush circuit or motor
Check wires, connections and motor
Worn brush motor brushes
Replace brushes, check commutator
Scrub deck goes down, then
raises
Faulty actuator circuit or actuator
Check wire connections and actuator
No brushes or pad drivers on machine
Install brushes or pad drivers
Chemical Reservoir empty
Fill reservoir
Chemical Cap Strainer clogged
Clean strainer
Chemical Metering System does
not operate
Chemical System plumbing obstructed Clear obstruction
Faulty Flow Meter
Press prime button. If chemical flows,
Repair/replace flow meter.
Faulty Chemical Pump
Press prime button. If chemical does
not flow, repair/replace pump.
86395370 Operator Manual - Chariot 3 iScrub 26
