Craftsman 113.248510 - Manual (Page 40)

trouble shooting—motor
ALL MODELS
NOTE: Motors used on wood-working tools are particularly susceptible to the
accumulation of sawdust and wood chips and should be blown out or "vacuumed
frequently to prevent interference with normal motor ventilation and proper
TROUBLE PROBABLE CAUSE REMEDY
Excessive noise. 1. Motor.
1. Have motor checked by qualified service
technician. Repair service is available at your
nearest Sears store.
Motor fails to develop
full power. NOTE:
LOW VOLTAGE: (Power
output of motor
decreases rapidly with
decrease in voltage at
motor terminals. For
example, a reduction of
10% in voltage causes
a reduction of 19% in
maximum power output
of which the motor is
capable, and a reduction
of 20% in voltage causes
a reduction of 36% in
maximum power
output.)
1. Circuit overloaded with
lights, appliances and
other motors.
2. Undersize wires or circuit
too long,
3. General overloading of
power company
facilities.
1. Do not use other appliances or motors on
same circuit when using the saw.
2. Increase wire sizes, or reduce length of wiring.
See “Motor Specifications and Electrical
Requirements" section,
3. Request a voltage check from the power
company.
Motor starts slowly
or falls to come up
to full speed. 1. Low voltage.
2. Windings burned out
or open.
3. Starting switch not
operating
1. Request voltage check from the power
company. Check size of circuit wiring.
2. Have motor repaired or replaced
3. Blowout sawdust from motor. Have motor
repaired.
Motor overheats. 1. Motor overloaded.
2. Improper cooling (Air
circulation restricted
through motor due to
sawdust accumulation.
1. Feed work slower into blade.
2. Clean out sawdust to provide normal air
circulation through motor. See “Maintenance
and Lubrication” section.
Starting switch in
motor will not operate.
1. Burned switch contacts
(due to extended hold-in
periods caused by low line
voltage, etc.)
2. Shorted capacitor.
3. Loose or broken
connections.
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.
Motor stalls
(resulting in blown
fuses or tripped
circuit breakers).
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. Have switch replaced.
2. Request voltage check from the power
company.
3. Install proper size fuses or circuit breakers.
Frequent opening of
fuses or circuit
breakers. 1. Motor overloaded.
2. Fuses or circuit breakers
do not have sufficient
capacity
3. Starting switch not
operating (motor does not
reach speed).
1. Feed work slower into blade.
2. Install proper size fuses or circuit breakers,
Check that wiring will handle load.
3. Have switch replaced Blow out sawdust.
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