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SEcTION 7: SERvIcE
review the troubleshooting and procedures in this section to fix or adjust your machine if a problem devel-
ops. if you need replacement parts or you are unsure of your repair skills, then feel free to call our technical
Support at (570) 546-9663.
Motor & Electrical
Symptom
possible Cause
Machine does not
1. power supply switched OFF or at fault.
start or a breaker
2. plug/receptacle at fault/wired wrong.
trips.
3. Motor connection wired wrong.
4. Wall circuit breaker tripped.
5. Wiring open/has high resistance.
6. Motor on/oFF switch at fault.
7. Motor at fault.
Machine stalls or is
1. Feed rate/lathe speed too fast.
underpowered.
2. Belt slipping.
3. Motor wired incorrectly.
4. plug/receptacle at fault.
5. pulley slipping on shaft/spindle.
6. Motor bearings at fault.
7. Machine undersized for task.
8. Motor overheated.
9. Motor at fault.
Machine has
1. Motor or component loose.
vibration or noisy
operation.
2. External wheel contacting guard.
3. Belt worn or loose.
4. grinding wheel at fault/arbor hole not
round.
5. pulley loose.
6. incorrectly mounted to lathe.
7. Motor mount loose/broken.
8. Motor bearings at fault.
9. Motor shaft bent.
Model g0688 (Mfg. Since 9/08)
Troubleshooting
possible Solution
1. Ensure power supply is ON/has correct voltage.
2. test for good contacts; correct the wiring.
3. Correct motor wiring connections (Page 34).
4. Ensure circuit size is correct/replace weak breaker.
5. Check/fix broken, disconnected, or corroded wires.
6. replace switch.
7. test/repair/replace.
1. decrease feed rate/lathe speed.
2. tension/replace belt; ensure pulleys are aligned.
3. Wire motor correctly (Page 34).
4. test for good contacts/correct wiring.
5. replace loose pulley/shaft/spindle.
6. test/repair/replace.
7. Use new grinding wheel; reduce the feed rate.
8. Clean motor, let cool, and reduce workload.
9. test/repair/replace.
1. inspect/replace damaged bolts/nuts, and re-tighten
with thread locking fluid.
2. properly align spindle pulley with motor pulley; make
sure external wheel does not contact guard.
3. inspect/replace belt.
4. dress/replace grinding wheel.
5. realign/replace shaft, pulley, setscrew, and key.
6. Use bushing(s); re-tighten tool post nut.
7. tighten/replace.
8. test by rotating shaft; rotational grinding/loose shaft
requires bearing replacement.
9. test with dial indicator and replace motor.
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