Minuteman E17_E20 Electric Walk-Behind Scrubber Disc Brush Drive - Manual (Page 37)

37
Troubleshooting
Problem Possible Cause Remedy
Vacuum motor does not turn
on Recovery tank full Empty recovery tank
Excessive foaming in recovery tank. Empty recovery tank.
Use less or change chemical.
Use defoaming agent.
Carbon Brushes worn Replace carbon brushes
Vacuum switch disconnected Connect wiring behind dash panel
Tripped vacuum motor circuit breaker Reset breaker
Broken vacuum limit switch Replace switch by squeegee lift lever
Squeegee in raised position Lower squeegee
Brush does not unload Foot pedal not in “home” position Place pedal in notch
Tripped brush motor circuit breaker Reset breaker
Broken brush motor switch Replace switch by foot pedal
Damaged brush block or drive hub Replace
Retaining ring on brush motor shaft not
in groove Remove brush hub assembly and
slide ring into groove