Section 7: Service; Troubleshooting - Grizzly G0842 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. incorrect power supply voltage or circuit
supply fuse/breaker
size.
trips immediately
3. power supply circuit breaker tripped or
after startup.
fuse blown.
4. Motor/power cord wires disconnected,
damaged, or connected incorrectly.
5. Wiring open/has high resistance.
6. on/oFF switch at fault.
7. Start capacitor at fault.
8. Centrifugal switch at fault.
9. Motor at fault.
Machine stalls or is 1. Machine undersized for task.
underpowered.
2. Workpiece material not suitable for
machine.
3. Motor overheated.
4. Belt slipping; oil/grease on belt.
5. using excessive force with cutting tool.
6. Motor wired incorrectly.
7. plug/receptacle at fault.
8. pulley slipping on shaft.
9. Centrifugal switch at fault.
10. Motor bearings at fault.
Machine has 1. Motor or component loose.
vibration or noisy
operation.
2. Machine incorrectly mounted or sits
unevenly on floor.
3. V-belt worn, loose, or slapping cover.
4. pulley(s) loose.
5. Motor fan rubbing on fan cover.
6. Motor mount loose/broken.
7. Motor bearings at fault.
8. Workpiece, faceplate, or chuck at fault.
9. Centrifugal switch at fault.
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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. Fix or replace damaged, disconnected, or
misconnected wires.
5. Check/fix broken, disonnected, or corroded wires.
6. replace switch.
7. test/replace.
8. adjust/replace centrifugal switch if available.
9. test/repair/replace.
1. use sharp cutting tools; reduce force of cutting tool/
depth of cut.
2. only cut wood/ensure moisture content is below 20%.
3. allow motor to cool and reduce depth of cut.
4. inspect and clean/tension/replace belt (Page 44).
5. decrease force of cutting tool.
6. Wire motor correctly.
7. test for good contacts/correct wiring.
8. tighten/replace loose pulley/key/shaft.
9. adjust/replace centrifugal switch if available.
10. test by rotating shaft; rotational grinding/loose shaft
requires bearing replacement.
1. inspect/replace damaged bolts/nuts, and retighten
with thread locking fluid.
2. tighten mounting bolts; relocate/shim machine.
3. inspect and tension/replace belt (Page 44).
4. tighten pulley set screws; re-align/replace shaft,
pulley set screws, and keys.
5. Fix/replace fan cover; replace loose/damaged fan.
6. tighten/replace.
7. test by rotating shaft; rotational grinding/loose shaft
requires bearing replacement.
8. Center workpiece in faceplate/chuck; reduce rpM;
re-install/replace defective faceplate/chuck.
9. replace.
Model G0842 (Mfd. Since 04/18)