Powermatic 75 - Manual (Page 11)

11
Trouble-Shooting for Model 75 Dust Collector
PROBLEM POSSIBLE CAUSE SOLUTION
Motor will not run.
Excessive sawdust
in air.
Excessive
impeller noise.
Excessive noise.
Motor fails to develop
full power.
Motor starts slowly or
fails to come up to full
speed.
Motor overheats.
Motor stalls.
Frequent opening of
fuses or circuit
breakers.
1. Defective cord, plug, switch,
and/or motor.
2. Blown fuse or circuit breaker
tripped.
1. Loose clamps; dust bag and/or
chip collection bag not secure.
1. Picked up large chips and de-
bris.
2. Loose impeller.
3. Rubbing impeller.
1. Motor.
2. Overloaded circuit.
3. Undersize extension cord or ex-
tension cord too long.
1. Low voltage.
2. Windings burned out or open.
3. Starting switch will not operate.
(Switch contacts not working
properly.)
1. Motor overloaded.
2. Improper cooling. (Air circulation
restricted through motor due to
sawdust accumulation inside of
motor.
1. Low voltage does not permit mo-
tor to reach operating speed.
2. Fuses or circuit breakers lack
sufficient capacity.
1. Motor overloaded.
2. Fuses or circuit breakers lack
sufficient capacity.
1. Consult service. Any attempt to repair
this motor may create a hazard unless
repair is done by a qualified service
technician.
2. Check for blown fuses and replace with
fuse of proper capacity or re-set circuit
breaker.
1. Tighten clamps.
1. Stop the machine to allow material to
fall to the bottom of inlet pipe. Remove
debris.
2. Unplug unit prior to disassembly due to
hazardous moving parts inside. Use a
piece of wood to free impeller. Attach to
inlet guard before plugging in.
3. Consult service to repair loose or rub-
bing impeller. A repair to the housing
may create a hazard unless it is done
by a qualified service technician.
1. Have motor check by a qualified service
technician.
2. Do not overload circuit when using dust
collection system with other appliances.
3. Increase the wire sizes on extension
cord, reduce length of extension cord or
use larger wire sizes. Request a power
check from the power company.
1. Request voltage check from power com-
pany.
2. Have motor repaired or replaced by a
qualified service technician.
3. Replace capacitor by a qualified service
technician.
1 & 2. Clean out sawdust and provide nor-
mal air circulation through motor.
1. Request voltage check from power com-
pany.
2. Install proper size fuses or circuit break-
ers.
1 & 2. Install proper size fuses or circuit
breakers.