Nautilus Hi-Dump Rider Scrubber/Sweeper #988752UM Rev. * 03/16
© 2014-2015 Minuteman International, Inc.
Page 95
TROUBLESHOOTING CHART
PROBLEM
POSSIBLE CAUSE(S)
SOLUTION(S)
Scrubber unit not cleaning the
fl oor.
Brushes worn.
Replace.
Need diff erent type of brush or detergent.
Use manufacturer’s recommended
brushes / detergent.
Debris caught in brush drive mechanism.
Clear obstruction.
Brushes out of adjustment.
Adjust.
Brush motor failure.
See Hydraulics System Problems.
Squeegee will not lower.
Loose or defective squeegee switch (on
console).
Reconnect wiring or replace switch.
Loose wire(s) at foot pedal.
Connect.
Foot pedal switches need adjustment.
Re-adjust cams.
Squeegee will not raise in
reverse or by console switch.
Foot pedal switches need adjustment.
Re-adjust cams.
Defective solenoid valve.
Replace solenoid valve or coil.
No power at valve.
Check fuse.
Scrubber leaving debris.
Hopper full.
Dump hopper.
Brushes out of adjustment.
Adjust.
Brushes bristles worn.
Check for wear and adjustment.
Poor performance of brush drive mechanism.
Check for jam in broom chamber.
Hopper fl aps damaged or missing.
Replace or adjust clearance.
TROUBLESHOOTING
