Troubleshooting Guide
Electrical Problems
4
4-3
HDdoc012020
Troubleshooting Guide
4.2
Electrical Problems
PROBLEM
CAUSE
SOLUTION
Up/down Excessively Slow.
Vertical wear pads too tight.
Adjust pads.
Up/down belt loose.
Adjust belt to be as loose as possible without
slipping
Worn up/down motor or motor
brushes.
Replace up/down motor or motor brushes.
Up/down Or Power Feed
Motors Do Not Work.
Worn/dirty contacts in drum
switch.
Replace switch or remove control panel cover
and clean contacts.
Bad key switch.
Replace key switch.
Circuit breaker.
Replace breaker
Burned-out motor.
Replace motor.
Bad connection on battery
post or loose wire.
Check for loose wire or terminal connections.
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.
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 battery, fuse, or ground
connection.
Check and tighten connections.
Nothing Works Electrically.
Dead battery.
Check for short circuit or turn OFF key.
Blown fuse.
Replace.
Corrosion on battery post.
Remove connection and clean posts.
Battery Will Not Stay Charged.
Key switch left ON.
Turn switch OFF when not in use.
Short in system.
Visually check for bare wires and/or have
checked.
Charging system not function-
ing.
Have charging system checked by authorized
dealer.
Bad battery cells.
Check fluid levels and add proper solution
Idle improper.
Adjust low end RPM per engine manual.
Loose alternator belt.
Check belt tension and tighten if necessary.