Section 7: Service; Troubleshooting - Grizzly G0803Z 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 a breaker
2. Incorrect power supply voltage or circuit size.
trips.
3. Power supply circuit breaker tripped or fuse
blown.
4. Wiring open/has high resistance.
5. ON/OFF switch at fault.
6. Motor at fault.
Machine stalls or 1. Workpiece material not suitable for machine.
is underpowered.
2. Feed rate/cutting speed too fast.
3. Dull blade.
4. Incorrect blade for task.
5. Workpiece crooked; fence loose or
misadjusted.
6. Blade slipping on wheels.
7. Belt slipping.
8. Motor overheated.
9. Run capacitor at fault.
10. Pulley/sprocket slipping on shaft.
Machine has 1. Motor or machine component loose.
vibration or noisy
operation.
2. Blade weld at fault/teeth broken.
3. Belt worn or loose.
4. Motor fan rubbing on fan cover.
5. Motor mount loose/broken.
6. Pulley loose.
7. Machine mounted incorrectly.
8. Motor bearings at fault.
Laser sight beam 1. Debris on lens.
diffracted or not
2. Batteries dead.
illuminating.
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Troubleshooting

Possible Solution
1. Install switch disabling key.
2. Ensure correct power supply voltage and circuit
size.
3. Ensure circuit is sized correctly and free of shorts.
Reset circuit breaker or replace fuse.
4. Check/fix broken, disconnected, or corroded wires.
5. Replace switch.
6. Test/repair/replace.
1. Only cut wood/ensure moisture is below 20%.
2. Decrease feed rate/cutting speed.
3 Sharpen/replace blade (Page 32).
4. Use correct blade.
5. Straighten or replace workpiece/adjust fence.
6. Adjust blade tension (Page 21). Clean tires/blade.
7. Clean oil/grease from belt. Tension/replace belt
(Pages 43–44); ensure pulleys are aligned.
8. Clean motor, let cool, and reduce workload.
9. Test/repair/replace.
10. Replace loose pulley/shaft.
1. Inspect/replace damaged bolts/nuts, and retighten
with thread locking fluid.
2. Replace blade (Page 32).
3. Inspect/replace belt (Page 44).
4. Fix/replace fan cover; replace loose/damaged fan.
5. Tighten/replace.
6. Re-align/replace shaft, pulley set screw, and key.
7. Tighten mounting bolts; relocate/shim machine.
8. Test by rotating shaft; rotational grinding/loose shaft
requires bearing replacement.
1. Wipe lens clean of debris.
2. Replace batteries (Page 48).
Model G0803Z (Mfd. Since 12/18)