PowerBoss, Inc. Copyright 2011
Commander T Series PB# 4100032
Rev.C 03/12
Page 86
TROUBLESHOOTING CHART
PROBLEM
POSSIBLE CAUSE(S)
SOLUTION(S)
Engine overheats.
NOTE: If coolant loss has not
occurred, check for malfunction
of the temperature sending unit.
Low coolant level.
Supply coolant.
Fan blade installed incorrect
Reinstall (pusher type fan)
Clogged radiator.
Flush radiator.
Loose fan belt.
Tighten belt.
Defective thermostat.
Replace thermostat.
PowerBoss® moves slowly
or does not move.
Parking brake is on.
Release brake.
Directional control pedal jammed, damaged, or
not adjusted properly.
Clear jam or adjust linkage.
Tow valve in tow position
Move to drive position
Low hydraulic fluid level.
Add hydraulic fluid.
Hydraulic fluid temperature too high and too
thin caused by excessive load, climbing, high
environment temperatures, worn pump, or
improper fluid.
Use the proper weight oil for the
operation conditions; check pump.
Hayes coupler failed
Replace
Other problems with the hydraulics system:
pump failure, motor failure, relief valve leaking
or stuck open.
See Hydraulics System
Problems in this section.
Tow Valve improperly set.
Turn to correct position.
TROUBLESHOOTING