-28-
Model G0925 (Mfd. Since 02/20)
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.
SECTION 7: SERVICE
Troubleshooting
Motor & Electrical
Symptom
Possible Cause
Possible Solution
Machine does not
start, or power
supply fuse/breaker
trips immediately
after startup.
1. Switch disabling key removed.
2. Incorrect power supply voltage or circuit
size.
3. Power supply circuit breaker tripped or fuse
blown.
4. Wiring broken, disconnected, or corroded.
5. ON/OFF switch at fault.
6. Motor at fault.
1. Install switch disabling key.
2. Ensure correct power supply voltage and circuit
size (
Page 10).
3. Ensure circuit is sized correctly and free of shorts.
Reset circuit breaker or replace fuse.
4. Fix broken wires or disconnected/corroded
connections (
Page 32).
5. Replace.
6. Test/repair/replace.
Machine stalls or is
underpowered.
1. Incorrect bit/cutter for task.
2. Feed rate/cutting speed too fast.
3. Dull bit/cutter.
4. Belt slipping.
5. Machine undersized for task.
6. Motor overheated.
7. Pulley slipping on shaft/pulleys misaligned.
8. Run capacitor at fault.
9. Motor or motor bearings at fault.
1. Use correct bit/cutter for task.
2. Decrease feed rate/cutting speed (
Page 20).
3. Sharpen bit/cutter or replace.
4. Ensure belt is oil free, tension/replace belt
(
Page 20).
5. Use correct cutter/bit; reduce feed rate; reduce
spindle RPM; use cutting fluid if possible.
6. Clean motor/let cool, and reduce workload.
7. Tighten loose pulley; replace broken/missing parts.
Ensure pulleys are aligned.
8. Test/replace if at fault.
9. Test/repair/replace.
Machine has
vibration or noisy
operation.
1. Motor or component loose.
2. V-belt worn/belt slapping cover.
3. Incorrectly mounted to workbench.
4. Pulley loose or misaligned.
5. Motor mount loose/broken.
6. Spindle loose, improperly installed or
damaged.
7. Workpiece loose.
8. Motor fan rubbing on fan cover.
9. Spindle bearings at fault.
10. Chuck or cutter at fault.
11. Motor bearings at fault.
1. Replace damaged or missing bolts/nuts or tighten if
loose.
2. Inspect/replace belt (
Page 20).
3. Shim or tighten mounting hardware (
Page 14).
4. Secure pulley on shaft and align (
Page 31).
5. Tighten/replace.
6. Tighten loose spindle, install spindle with clean
mating surfaces, replace spindle if damaged.
7. Use the correct holding fixture for workpiece.
8. Fix/replace fan cover; replace loose/damaged fan.
9. Test by rotating spindle; rotational grinding/loose
shaft requires bearing replacement.
10. Replace out-of-round chuck, dull, or bent cutter.
11. Test by rotating shaft; rotational grinding/loose
shaft requires bearing replacement.
Summary of Contents for G0925
Page 44: ......
