Craftsman 113.225931 - Manual (Page 24)

TROUBLE SHOOTING - MOTOR
NOTE: Motors used oti wopd'Wbrking tools are particularly susceptible to the accumulation
of saviidust ànd Wdod chips and should be blown out or “vacuunied” frequently to prevent
Ititérferericé with, noritial motor: ventilation and proper operation of the centrifugally-
,;dperated'startirig;switch:/ ^ / .
TROUBLE PROBABLE CAUSE REMEDY
EKcesslve hofse. 1. Motor. 1. Have rpotor checked by qualified service
technician. Repair service is available at
your nearest Sears store,
Motor fails to develop
lull power. NOTE;
LOW VOLTAGE: (Power
output of motor
.decreases rapidly with . ;
decrease.iii voltage at .
motor terminals. For
exarhple, a reduction of
. 10% iri voltage causes : .
a reductiori of 19% in
rnaxtmum power butpüt
. of'Which the fn otor 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
òr fails to cóme up
to full speed. IV Low voltage Will not
trip relay: :
2. Windings burned out
Of open ;
3. Starting relay not
operating, .
1: Request voltage check from the power company,
2. Have motor repaired or replaced.
3. Have relay replaced- ..........................
Motor overheats. t: Motor overloaded-
2. Improper^cooling: (Air
. circulafipn restricted:
: through motor due to
sawdust, accumulating.
1. Feed work slower into belt or disc.
•2- Clean out sawdust to provide normal air
circulation through rnotor.
■ See "Maintenance and Lubrication" section.
Starting switch iri
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 replacedand 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 loo 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 svvitch not
, operating. (motor does
not reach speed).
1, Feed work slower into belt or disc.
2, Install proper size fuses or circuit breakers.
3, Have switch replaced.
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