Troubleshooting 17
MCPSSAMHS (Rev. 8/25/2006)
TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSES
CHECK THE FOLLOWING
Planer loses power.
Relief setting in auxiliary system lower
than standard 2400 psi.
Remove and clean or replace solenoid
cartridge or replace O-rings. Check
reliefs in the following sequence -
loader valve, standard auxiliary valve.
Reset or replace any relief below 2200
psi. The flow should be no less than 25
gpm. If pump output is 20% less than
rated pump specifications, the pump
may require repair. Consult loader ser-
vice manual.
Loader circuit pump or auxiliary pump
failure.
Tilt function is jumpy and
erratic.
Tilt clamp bolts set too tight or rusted
plate.
Loosen tilt clamp bolts to provide .015
clearance or grease between plates.
Planer drive motor leaks
at shaft seal.
Excess motor case drain pressure.
The maximum case drain pressure
allowed is 25 psi at full engine throttle.
Replace shaft seal.
No functions work.
No power to controller.
Check fuse and power lead connec-
tions.
One function doesn’t
work.
Check power to coil.
If coil has power and pulls, cartridge is
defective; replace cartridge. If coil
doesn’t pull check for power to coil or
replace coil.
Bearing failure of motor
or output bearing.
Improper lubrication of bearing. Pick
holder replacement-welder not
grounded through drum.
Re-grease outboard bearing each 4 - 8
hours. During holder replacement,
ground welder directly to drum. (See
Service section.)
