Troubleshooting - Craftsman 351.215 Operator's Manual

SYMPTOM POSSIBLE CAUSE(S)
Motor will not start 1. Low voltage
2. Open circuit in motor or loose
3. Defective switch
4. Defective capacitor
Motor will not start; 1. Short circuit in line cord or plug
fuses blown or circuit
breakers are tripped
2. Short circuit in motor or loose
3. Incorrect fuses or circuit breakers in
Motor fails to develop full 1. Power line overloaded with lights,
power (power output of
motor decreases rapidly
2. Undersize wires or circuits too long
with decrease in voltage at
3. General overloading of power
motor terminals)
Motor overheats Motor overloaded
Motor stalls (resulting in 1. Short circuit in motor or loose
blown fuses or tripped
circuit breakers)
2. Low voltage
3. Incorrect fuses or circuit breakers in
4. Motor overload
Machine slows down 1. Applying too much pressure to
while operating or
sandpaper slips on drum
2. Spindle knob loose
Wood burns while Sandpaper glazed or loaded with
sanding; sandpaper not sawdust
removing wood
Spindle does NOT travel 1. Sawdust build-up below table insert
completely through 1
2. Damaged or loose oscillating
stroke
Excessive noise Spindle and motor not aligned properly
Note: Normally operating
sander does make some
noise

TROUBLESHOOTING

connections
connections
power line
appliances and other motors
company's facilities
connections
power line
workpiece
mechanism
CORRECTIVE ACTION
1. Check power line for proper voltage
2. Inspect all lead connections on motor for loose or
open connection
3. Replace switch
4. Replace capacitor
1. Inspect line cord or plug for damaged insulation and
shorted wires
2. Inspect all lead connections on motor for loose or
shorted terminals or worn insulation on wires
3. Install correct fuses or circuit breakers
1. Reduce the load on the power line
2. Increase wire sizes, or reduce length of wiring
3. Request a voltage check from the power company
Reduce load on motor
1. Inspect connections in motor for loose or shorted
terminals or worn insulation on lead wires
2. Correct the low line voltage conditions
3. Install correct fuses or circuit breakers
4. Reduce load on motor
1. Ease up on pressure
2. Tighten spindle knob
Replace sandpaper
1. Remove sawdust with vacuum
2. Inspect mechanism. Contact Sears Service Center
if necessary
Adjust motor and spindle alignment
7