Troubleshooting Guide
Electrical Problems
Troubleshooting Guide
HD92doc042701
4-3
4
4.2
Electrical Problems
PROBLEM
CAUSE
SOLUTION
Up/down Elevator Exces-
sively Slow
Vertical wear pads too tight
Adjust pads.
Up/down belt loose
Adjust belt to be as loose as possible
without slipping
Up/down Or Power Feed
Motors Do Not Work
Worn contacts in drum switch
Replace switch or remove control
panel cover and clean contacts
Burned-out motor
Replace motor
Bad connection on battery
post or loose wire
Check for loose wire or terminal con-
nections
Up/Down Or Power Feed
Switches Remain Engaged
When Switch Is Released
Worn or dirty contacts in drum
switch
Manually move the power feed or
up/down switch back to neutral or
"off" position. Replace drum switch or
remove control panel cover and
clean and lubricate contacts NOTE:
Use only contact grease supplied by
Wood-Mizer.
Drum switch spring broken
Manually move the power feed or
up/down switch back to neutral or
"off" position. Replace drum switch
spring
Up/Down Or Power Feed
Motors Overheat And Loose
Power
System overload or bind
occurred.
Correct problem.
See Section 4.3
Power Feed Problems.
Allow motor
to cool before restarting.
Normal operation factors
exceeded (eg: up/down con-
trol jockeyed excessively)
Allow motor to cool before restarting.
Everything Works And Then
Cuts Out - Works Again
Bad connection in battery
Check connection
Nothing Works Electrically
Dead battery
Check for short circuit or turn OFF
key
Bad circuit breaker
Replace
