SECTION 7: SERVICE
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)
Troubleshooting
Symptom | Possible Cause | Possible Solution | ||
Machine does not | 1. | Emergency stop button engaged or at fault. | 1. | Press side tab in and lift switch cover. Press On |
start or a circuit |
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| button to reset; replace if not working properly. |
breaker trips. | 2. | Variable speed dial in OFF position or at | 2. | Turn variable speed dial past "0". Ensure dial has |
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| fault. |
| correct voltage. Replace if faulty. |
| 3. | Spindle direction switch turned to "0" or at | 3. | Turn spindle direction switch to "F" or "R". Ensure |
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| fault. |
| dial has correct voltage. Replace if faulty. |
| 4. | Blown fuse. | 4. | Replace fuse/ensure no shorts (Page 58). |
| 5. | Incorrect power supply voltage. | 5. | Ensure correct power supply voltage. |
| 6. | Power supply circuit breaker tripped or fuse | 6. | Ensure circuit is sized correctly and free of shorts. |
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| blown. |
| Reset circuit breaker or replace fuse. |
| 7. | Wiring open/has high resistance. | 7. | Check/fix broken, disconnected, or corroded wires. |
| 8. | Motor brushes at fault. | 8. | Remove/replace brushes (Page 59). |
| 9. | On/Off switch at fault. | 9. | Replace switch. |
| 10. Motor at fault. | 10. Test/repair/replace. | ||
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Machine stalls or is | 1. | Feed rate/cutting speed too fast. | 1. | Decrease feed rate/cutting speed. |
underpowered. | 2. | Wrong workpiece material. | 2. | Use correct type/size of metal. |
| 3. | Machine undersized for task. | 3. | Inspect and replace if at fault. |
| 4. | Motor overheated. | 4. | Use sharp bits; reduce feed rate/depth of cut. |
| 5. | Computer board at fault. | 5. | Clean motor, let cool, and reduce workload. |
| 6. | Motor speed dial at fault. | 6. | Test and replace if at fault. |
| 7. | Timing belt slipping. | 7. | Tension/replace belt; ensure pulleys are aligned. |
| 8. | Motor brushes at fault. | 8. | Remove/replace brushes (Page 59). |
| 9. | Pulley/sprocket slipping on shaft. | 9. | Replace loose pulley/shaft. |
| 10. Motor bearings at fault. | 10. Test/repair/replace. | ||
| 11. Motor at fault. | 11. Test/repair/replace. | ||
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Machine has | 1. | Motor or component loose. | 1. | Inspect/replace damaged bolts/nuts, and retighten |
vibration or noisy |
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| with thread locking fluid. |
operation. | 2. | Pulley loose. | 2. | Realign/replace shaft, pulley, setscrew, and key. |
| 3. | Motor fan rubbing on fan cover. | 3. | Fix/replace fan cover; replace loose/damaged fan. |
| 4. | Motor bearings at fault. | 4. | Test by rotating shaft; rotational grinding/loose shaft |
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| requires bearing replacement. |
| 5. | Cutting tool chattering. | 5. | Replace/sharpen cutting tool; index tool to spindle |
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| centerline; use correct feed rate and cutting RPM. |
| 6. | Workpiece or chuck at fault. | 6. | Properly secure or center workpiece in chuck or |
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| faceplate; replace defective chuck. |
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Model G0765 (Mfd. Since 12/13) |
