Section 7: Service; Troubleshooting - Grizzly G0817 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. Emergency Stop button depressed/at fault.
start or a breaker 2. Incorrect power supply voltage or circuit
trips immediately size.
upon startup. 3. Power supply circuit breaker tripped or fuse
blown.
4. Motor wires connected incorrectly.
5. Wiring open/has high resistance.
6. ON/OFF switch at fault.
7. Start capacitor at fault.
8. Thermal overload relay has tripped.
9. Contactor not energized/has poor contacts.
10. Centrifugal switch at fault.
11. Motor at fault.
Machine stalls or is 1. Dull blade.
underpowered.
2. Workpiece material not suitable for
machine, or machine undersized.
3. Belt slipping; oil/grease on belt.
4. Feed rate/cutting speed too fast.
5. Blade slipping on wheels.
6. Motor overheated.
7. Motor wired incorrectly.
8. Plug/receptacle at fault.
9. Run capacitor at fault.
10. Pulley/sprocket slipping on shaft.
11. Contactor not energized/has poor contacts.
12. Centrifugal switch at fault.
13. Motor bearings at fault.
Model G0817 (Mfd. Since 05/16)

Troubleshooting

Possible Solution
1. Rotate button head to reset. Replace.
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. Correct motor wiring connections (Page 71).
5. Check/fix broken, disconnected, or corroded wires.
6. Replace switch.
7. Test/replace.
8. Reset; contact tech support if relay frequently trips.
9. Test all legs for power/replace.
10. Adjust/replace centrifugal switch if available.
11. Test/repair/replace.
1. Sharpen/replace blade (Page 46).
2. Only cut wood—ensure moisture is below 20%. Use
correct blade/reduce feed rate or depth of cut.
3. Clean/tension/replace belt (Page 59).
4. Decrease feed rate/cutting speed.
5. Increase blade tension (Page 28); ensure proper
blade size.
6. Allow motor to cool, reset thermal overload relay if
necessary, and reduce depth of cut.
7. Wire motor correctly (Page 71).
8. Test for good contacts/correct wiring.
9. Test/repair/replace.
10. Replace loose pulley/shaft.
11. Test all legs for power/replace.
12. Adjust/replace centrifugal switch if available.
13. Test by rotating shaft; rotational grinding/loose shaft
requires bearing replacement.
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