Section 7: Service; Troubleshooting - Grizzly G0813 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. 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/circuit size.
trips immediately
3. Power supply circuit breaker tripped/fuse
after startup.
blown.
4. Motor wires connected incorrectly.
5. Wiring open/has high resistance.
6. ON/OFF switch at fault.
7. Centrifugal switch at fault.
8. Start capacitor at fault.
9. Motor at fault.
Machine stalls or is 1. Workpiece material not suitable.
underpowered.
2. Excessive feed rate.
3. Excessive cutting depth.
4. Dull knives.
5. Dust collection problem, causing internal
components to clog up with shavings.
6. Belt slipping; oil/grease on belt.
7. Pulley loose or not properly aligned.
8. Motor overheated.
9. Motor wires connected incorrectly.
Machine has 1. Motor or other component loose.
vibration or noisy
operation.
2. Belt worn/loose; belt slapping cover.
3. Pulley loose or not properly aligned.
4. Motor fan rubbing on fan cover.
5. Foot-pedal caster engaged.
6. Knives at fault.
7. Cutterhead bearings at fault.
8. Centrifugal switch at fault.
9. Motor bearings at fault.
Model G0813/G0814 (Mfd. Since 3/16)

Troubleshooting

Possible Solution
1. Install switch disabling key.
2. Ensure correct power supply voltage/circuit size.
3. Ensure circuit is sized correctly and free of shorts.
Reset circuit breaker or replace fuse.
4. Correct motor wiring connections (Page 55).
5. Check/fix broken, disconnected, or corroded wires.
6. Test/replace switch.
7. Adjust/replace centrifugal switch if available.
8. Test/replace capacitor.
9. Test/repair/replace.
1. Ensure workpiece is suitable for jointing (Page 32).
2. Reduce feed rate.
3. Reduce cutting depth (Page 33).
4. Sharpen/replace knives (Page 45).
5. Clear blockages; move machine closer to dust
collector; upgrade dust collector.
6. Tension/replace belt (Page 51); clean belt; ensure
pulleys are aligned (Page 52).
7. Re-align pulleys (Page 52); replace shaft key;
tighten pulley set screw(s).
8. Clean motor, let cool, and reduce depth of cut.
9. Correct motor wiring connections (Page 55).
1. Replace damaged bolts/nuts; retighten loose bolts/
nuts. Use thread-locking fluid if condition repeats.
2. Tension/replace belt (Page 51).
3. Re-align pulleys (Page 52); replace shaft key;
tighten pulley set screw(s).
4. Fix/replace fan cover; replace loose/damaged fan.
5. Release foot-pedal caster to stabilize machine.
6. Sharpen/replace knives; set knife alignment/height
correctly.
7. Replace bearing(s)/realign cutterhead.
8. Replace.
9. Test by rotating shaft; rotational grinding/loose shaft
requires bearing replacement.
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