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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. E-Stop button depressed/at fault.
start or power-
2. Chip guard open/switch engaged.
supply breaker/fuse
3. Incorrect power supply voltage or circuit
trips immediately
size.
upon startup.
4. Power supply circuit breaker tripped
or fuse blown.
5. Wiring open/has high resistance.
6. Circuit board at fault.
7. FWD-OFF-REV switch at fault.
8. Spindle-speed dial at fault.
9. Motor at fault.
Machine stalls or is
1. Feed rate/cutting speed too fast.
underpowered.
2. Machine undersized for task or tooling
incorrect for task.
3. Wrong cutter type.
4. Wrong workpiece material.
5. Motor overheated.
6. Spindle speed dial at fault.
7. Motor brushes at fault.
8. Motor bearings at fault.
Machine has
1. Machine incorrectly mounted to workbench.
vibration or noisy
2. Bit is chattering.
operation.
3. Excessive depth of cut.
4. Workpiece not secure.
5. Motor or component loose.
6. Chuck or cutter at fault.
7. Cogged belt worn or loose.
8. Spindle bearings at fault.
9. Motor bearings at fault.
10. Motor at fault.
Model G0836 (Mfd. Since 09/17)
Troubleshooting
Possible Solution
1. Rotate button head to reset. Replace if at fault.
2. Close chip guard.
3. Ensure correct power supply voltage and circuit
size (Page 11).
4. Ensure circuit is sized correctly and free of shorts.
Reset circuit breaker or replace fuse.
5. Check/fix broken, disconnected, or corroded wires.
6. Test/replace.
7. Test/replace.
8. Test/replace.
9. Test/repair/replace.
1. Decrease feed rate/cutting speed.
2. Use correct cutter/bit; reduce feed rate; reduce
spindle RPM; use coolant if possible.
3. Use correct cutter for task.
4. Use correct type/size metal.
5. Clean motor, let cool, and reduce workload.
6. Test and replace if at fault.
7. Test/replace.
8. Test/repair/replace.
1. Tighten mounting hardware, or shim (Page 17).
2. Replace/sharpen bit; index bit to workpiece; use
appropriate feed rate and cutting RPM.
3. Decrease depth of cut.
4. Properly clamp workpiece on table or in vise.
5. Inspect/replace damaged bolts/nuts, and retighten
with blue thread-locking fluid.
6. Inspect/replace chuck/cutter.
7. Inspect/replace belt.
8. Test by rotating spindle; rotational grinding/loose
shaft requires bearing replacement.
9. Test/repair/replace.
10. Test/repair/replace.
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