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Model G0773 (Mfd. Since 12/14)
-67-
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 at (570) 546-9663.
Note: Please gather the serial number and manufacture date of your machine before calling.
SECTION 8: SERVICE
Troubleshooting
Symptom Possible Cause Possible Solution
Machine does not
start or a circuit
breaker trips.
1. Improper switch position at startup.
2. Incorrect power supply voltage.
3. Power supply circuit breaker tripped or fuse
blown.
4. Wiring open/has high resistance.
5. On/Off switch at fault.
6. Emergency stop button engaged or at fault.
7. Spindle speed dial at fault.
8. Spindle direction switch at fault.
9. Lathe/mill selector switch at fault.
10. Spindle rotation switch at fault.
11. Motor at fault.
1. DISCONNECT MACHINE FROM POWER; follow
proper procedure for startup (see Page 24).
2. Ensure correct power supply voltage.
3. Ensure circuit is sized correctly and free of shorts.
Reset circuit breaker or replace fuse.
4. Check/fix broken, disconnected, or corroded wires.
5. Test/replace switch.
6. Test/replace Emergency Stop button.
7. Test/replace dial.
8. Test/replace switch.
9. Test/replace switch.
10. Test/replace switch.
11. Test/repair/replace.
Machine stalls or is
underpowered.
1. Machine undersized for task.
2. Belts slipping or contaminated with oil or
grease.
3. Wrong workpiece material.
4. Feed rate/cutting speed too fast.
5. Motor overheated.
6. Computer board at fault.
7. Motor speed dial at fault.
8. Pulley/sprocket slipping on shaft.
9. Motor bearings at fault.
10. Motor at fault.
1. Use sharp bits/chisels at correct angle; reduce feed
rate/depth of cut; use coolant if possible.
2. Tension/replace belts; ensure belts and pulleys are
clean and dry.
3. Use correct type/size of metal.
4. Decrease feed rate/cutting speed.
5. Use sharp bits; reduce feed rate/depth of cut.
6. Clean motor, let cool, and reduce workload.
7. Test and replace if at fault.
8. Replace loose pulley/shaft.
9. Test by rotating shaft; rotational grinding/loose shaft
requires bearing replacement.
10. Test/repair/replace.
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. Motor mount loose/broken.
1. Inspect/replace damaged bolts/nuts, and retighten
with thread locking fluid.
2. Replace/sharpen bit; index bit to workpiece; use
correct feed rate and cutting RPM; retract tool
holder and position workpiece closer.
3. Inspect/replace belts with a new matched set.
4. Fix/replace fan cover; replace loose/damaged fan.
5. Tighten/replace.
Motor & Electrical