Section 7: Service; Troubleshooting - Grizzly T32536 Owner's Manual

SECTION 7: SERVICE

Review the troubleshooting 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. 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 power-
2. Blown fuse.
supply fuse/breaker
3. Incorrect power supply voltage or circuit
trips immediately
size.
after startup.
4. Power supply circuit breaker tripped or fuse
blown.
5. Wiring broken, disconnected, or corroded.
6. Spindle speed dial at fault.
7. ON/OFF switch at fault.
8. Motor brushes worn out.
9. Circuit board at fault.
10. Motor or motor bearings at fault.
Machine stalls or is 1. Machine undersized for task.
underpowered.
2. Workpiece material not suitable for
machine.
3. Feed rate/cutting speed too fast.
4. Belt slipping.
5. Pulley slipping on shaft.
6. Spindle speed dial at fault.
7. Motor brushes worn out.
8. Circuit board at fault.
9. Motor or motor bearings at fault.
Machine has 1. Motor or component loose.
vibration or noisy
operation.
2. Machine sits unevenly on workbench.
3. Belt worn, loose, pulleys misaligned or belt
slapping cover.
4. Pulley loose.
5. Motor fan rubbing on fan cover.
6. Motor mount loose/broken.
7. Workpiece/faceplate at fault.
8. Motor bearings at fault.
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Troubleshooting

Possible Solution
1. Install disabling key.
2. Replace fuse/ensure no shorts (Page 36).
3. Ensure correct power supply voltage and circuit
size.
4. Ensure circuit is sized correctly and free of shorts.
Reset circuit breaker or replace fuse.
5. Fix broken wires or disconnected/corroded
connections.
6. Test/replace if at fault.
7. Replace switch.
8. Remove/replace brushes (Page 36).
9. Inspect/replace if at fault.
10. Replace motor.
1. Use sharp chisels; reduce feed rate/depth of cut.
2. Only cut wood/ensure moisture is below 20%.
3. Decrease feed rate/cutting speed (Page 23).
4. Tension/replace belt; ensure pulley is aligned
properly (Page 35); belt is clean and not damaged.
5. Tighten/replace loose pulley/shaft.
6. Test/replace if at fault.
7. Remove/replace brushes (Page 36).
8. Inspect/replace if at fault.
9. Replace motor.
1. Inspect/replace damaged bolts/nuts, and retighten
with thread-locking fluid.
2. Adjust feet.
3. Inspect/replace belt (Page 34). Realign pulleys if
necessary (Page 35).
4. Realign/replace shaft, pulley, set screw, and key.
5. Fix/replace fan cover; replace loose/damaged fan.
6. Tighten/replace.
7. Center workpiece in chuck/faceplate; reduce RPM;
replace defective chuck.
8. Test by rotating shaft; rotational grinding/loose shaft
requires bearing replacement.
Model T32536 (Mfd. Since 10/20)