17
Maintenance
Machine Troubleshooting
PROBLEM
CAUSE
SOLUTION
Machine will not run
Circuit breaker tripped in building.
Check and reset.
Power switch failure
Test switch for continuity and
replace if necessary.
Tripped circuit breaker
Reset.
Faulty power cord
Replace.
Fuse in motor blown
(Dual speed only)
Replace
CAUTION: To reduce the risk of
electrical shock, unplug the
machine before opening fuse
holder. Fuse will only open under
extreme conditions. Investigate
cause before replacing.
Electrical shock
Equipment not grounded
Follow grounding instructions
exactly.
Receptacle not grounded
Have an electrician inspects
building’s wiring.
Internal wiring problem
Ensure that the machine wiring
matches the appropriate wiring
diagram. Replace any wires or
components that are short circu-
iting.
Repeated circuit breaker tripping
Mechanical problem
Higher amp draws indicate a
mechanical problem. Find the
problem before using the machine.
Faulty circuit breaker
Test circuit for continuity. Replace
circuit breaker if necessary.
Excessive vibration
Pad not centered
Re-center pad.
Damaged or unevenly worn pad
Replace pad. Do not rest machine
on pad when not in use.
Damaged pad driver
Replace.
Pad does not turn but motor is
running
Shear coupling has failed
Replace coupling.
86386990 Operators Manual - Floor Polisher
