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Model G0766 (Mfd. Since 07/15)
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.
SECTION 7: SERVICE
Troubleshooting
Motor & Electrical
Symptom Possible Cause Possible Solution
Machine does not
start or a breaker
trips.
1. Emergency stop button depressed/at fault.
2. Incorrect power supply voltage or circuit
size.
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. Potentiometer/variable-speed dial controller
at fault.
8. Inverter/control box at fault.
9. Motor at fault.
1. Press side tab in and lift switch cover. Press ON
button to reset; replace if not working properly.
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.
5. Check/fix broken, disconnected, or corroded wires.
6. Replace switch.
7. Test/replace.
8. Inspect inverter/controller box; replace.
9. Test/repair/replace.
Machine stalls or is
underpowered.
1. Machine undersized for task (Wood).
2. Workpiece material not suitable for
machine.
3. Feed rate/cutting speed too fast.
4. Belt(s) slipping.
5. Oil/grease on belt(s).
6. Motor wired incorrectly.
7. Plug/receptacle at fault.
8. Motor overheated.
9. Pulley slipping on shaft.
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.
4. Tension/replace belt(s); ensure pulleys are aligned.
5. Clean belt(s).
6. Wire motor correctly.
7. Test for good contacts/correct wiring.
8. Clean motor, let cool, and reduce workload.
9. Replace loose pulley/shaft.
Machine has
vibration or noisy
operation.
1. Motor or component loose.
2. Belt worn or loose.
3. Motor fan rubbing on fan cover.
4. Motor mount loose/broken.
5. Pulley loose.
6. Machine incorrectly mounted or sits
unevenly on floor.
7. Motor bearings at fault.
8. Belt slapping cover.
9. Workpiece/faceplate at fault.
1. Inspect/replace damaged bolts/nuts, and retighten
with thread locking fluid.
2. Inspect/replace belt.
3. Fix/replace fan cover; replace loose/damaged fan.
4. Tighten/replace.
5. Re-align/replace shaft, pulley set screw, and key.
6. Tighten/replace anchor studs in floor; relocate/shim
machine; adjust feet.
7. Test by rotating shaft; rotational grinding/loose shaft
requires bearing replacement.
8. Replace/realign belt.
9. Center workpiece in chuck/faceplate; reduce RPM.