-72-
Model G0824 (Mfd. Since 12/16)
SECTION 7: SERVICE
Troubleshooting
Motor & Electrical
Symptom Possible Cause Possible Solution
Machine does not
start or a circuit
breaker trips
immediately upon
startup.
1. Emergency Stop/RESET button depressed/
at fault.
2. Plug/receptacle at fault/wired wrong.
3. Incorrect power supply voltage or circuit
size.
4. Power supply circuit breaker tripped or fuse
blown.
5. Wires disconnected, damaged, or connected
incorrectly.
6. Thermal overload relay tripped/at fault.
7. Motor wires connected incorrectly.
8. ON/OFF switch at fault.
9. Start capacitor at fault.
10. Contactor not energized/has poor contacts.
11. Centrifugal switch at fault.
12. Spindle rotation switch at fault.
13. Motor at fault.
1. Rotate button head to reset; replace.
2. Test for good contacts; correct the wiring.
3. Ensure correct power supply voltage and circuit
size.
4. Ensure circuit is sized correctly and free of shorts.
Reset circuit breaker or replace fuse.
5. Fix or replace damaged, disconnected, or
misconnected wires.
6. Reduce load on motor if overheated; reset; replace.
7. Correct motor wiring connections (Page 90).
8. Replace switch.
9. Test/replace.
10. Test all legs for power/replace.
11. Adjust/replace centrifugal switch if available.
12. Test/replace switch.
13. Test/repair/replace.
Motor stalls or is
underpowered.
1. Machine undersized for task.
2. Feed rate/cutting speed too fast.
3. Improper tooling or workpiece material.
4. Belt slipping due to oil/grease contamination,
improper tension or excessive wear.
5. Motor wired incorrectly.
6. Motor overheated.
7. Run capacitor at fault.
8. Pulley/sprocket slipping on shaft.
9. Gearbox at fault.
1. Use sharp tools at correct angle; reduce feed rate/
depth of cut; use coolant if possible.
2. Decrease feed rate/cutting speed.
3. Use proper cutting tools and workpiece materials.
4. Tension/replace belt(s) (Page 79); clean belt(s) of
any oil/grease.
5. Wire motor correctly.
6. Clean motor, let cool, and reduce workload.
7. Test/repair/replace.
8. Replace loose pulley/shaft.
9. Replace broken or slipping gears.
Machine has
vibration or noisy
operation.
1. Motor or component loose.
2. Bit chattering.
3. V-belt(s) worn or loose.
4. Motor fan rubbing on fan cover.
5. Pulley loose or misaligned.
6. Motor mount loose/broken.
1. Inspect/replace damaged bolts/nuts, and retighten
with thread-locking fluid.
2. Sharpen/replace bit; index bit to workpiece; use
correct feed rate and cutting RPM.
3. Inspect/replace belts with a new matched set
(Page 79).
4. Fix/replace fan cover; replace loose/damaged fan.
5. Re-align/replace pulley/shaft, pulley set screw, and
key.
6. Tighten/replace.
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.