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TROUBLE SHOOTING m SAW MOTOR (Continued)
TROUBLE PROBABLE CAUSE
Motor starts slowly
or fails to come up
to full speed.
Motor overheats.
Starting switch in
motor will not
operate.
Motor stalls
(resulting in blown
fuses or tripped
circuit breakers).
Frequent opening of
fuses or circuit
breakers.
1,
2.
3.
1.
2.
2,
3.
Low voltage will not
trip relay.
Windings burned out
or open.
Sawdust inside motor.
Motor overloaded.
Improper cooling. (A r
circulation restricted
through motor due to
sawdust, accumulating
inside of saw).
Burned switch contacts
(due to extended
hold-in periods caused
by low line voltage, etc.)
Shorted capacitor
Loose or broken
connections.
1. Starting switch not
operating.
2. Voltage too low to permit
motor to reach operating
speed.
3. Fuses or circuit breakers
do not have sufficient
capacity.
1. Motor overloaded.
2. Fuses or circuit breakers
do not have sufficient
capacity.
3. Starting switch not
operating (motor does
not reach speed).
REMEDY
1. Request voltage check from the power company.
2. Have motor repaired or replaced.
3. Blow or vaccuum sawdust from motor.
1. Feed work slower into blade.
2. Clean out sawdust to provide normal air
circulation through motor.
See "Maintenance and Lubrication" section.
1. Have switch replaced and request a voltage check
from the power company.
2. Have capacitor tested and replace if defective.
3. Have wiring checked and repaired.
1. Have switch replaced.
2. Request voltage check from the power company.
3. Install proper size fuses or circuit breakers.
1. Feed work slower into blade.
2. Install proper size fuses or circuit breakers,
3. Have switch replaced.
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