Section 7: Service; Troubleshooting - Grizzly T10875 Owner's Manual

SECTION 7: SERVICE

Review the troubleshooting and procedures in this section if a problem develops with your machine. If you
need replacement parts or additional help with a procedure, call our Technical Support at (570) 546-9663.
Note: Please gather the serial number and manufacture date of your machine before calling.
Motor & Electrical
Symptom Possible Cause
Machine does not 1. Switch disabling key removed.
start or a breaker
2. Incorrect power supply voltage or circuit
trips.
size.
3. Blown fuse.
4. Power supply circuit breaker tripped or fuse
blown.
5. Motor wires connected incorrectly.
6. Motor at fault.
Machine stalls or is 1. Machine undersized for task.
underpowered.
2. Motor wired incorrectly.
3. Motor overheated.
4. Run capacitor at fault.
5. Motor bearings at fault.
Machine has 1. Machine incorrectly mounted to workbench
vibration or noisy
or floor.
operation.
2. Motor or component loose.
3. Grinding wheel at fault/arbor hole not
round.
4. Motor bearings at fault.
5. Motor shaft bent.
Model T10875 (Mfd. Since 01/15)

Troubleshooting

Possible Solution
1. Install switch disabling key.
2. Ensure correct power supply voltage and circuit
size.
3. Replace fuse/ensure no shorts.
4. Ensure circuit is sized correctly and free of shorts.
Reset circuit breaker or replace fuse.
5. Correct motor wiring connections.
6. Test/repair/replace.
1. Use new grinding/buffing wheel; reduce the feed
rate.
2. Wire motor correctly.
3. Clean motor, let cool, and reduce workload.
4. Test/repair/replace.
5. Test/repair/replace.
1. Adjust feet, shim, or tighten mounting hardware.
2. Inspect/replace damaged bolts/nuts, and retighten
with thread locking fluid.
3. Dress/replace grinding wheel.
4. Test by rotating shaft; rotational grinding/loose shaft
requires bearing replacement.
5. Test with dial indicator and replace motor.
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