SECTION 8: SERVICE
About Service
This section is provided for your
Troubleshooting
Motor & Machine Operation
SYMPTOM |
| POSSIBLE CAUSE |
| CORRECTIVE ACTION |
Machine does not start or | 1. | Plug/receptacle is at fault or wired | 1. | Test for good contacts; correct the wiring. |
a breaker trips. |
| incorrectly. | 2. | Correct motor wiring connections. |
| 2. | Motor connection wired incorrectly. | 3. | Turn |
| 3. | Thermal overload relay has |
| push the reset pin. Replace if tripped multiple |
|
| tripped. |
| times (weak relay). |
| 4. | Contactor not getting energized/ | 4. | Test for power on all legs and contactor operation. |
|
| has burnt contacts. |
| Replace unit if faulty. |
| 5. | Power supply is at fault/switched | 5. | Ensure hot lines have correct voltage on all legs |
|
| OFF. |
| and main power supply is switched ON. |
| 6. | Motor ON button or ON/OFF | 6. | Replace faulty ON button or ON/OFF switch. |
|
| switch is at fault. |
|
|
| 7. | Centrifugal Switch is at fault. | 7. | Adjust/replace the centrifugal switch if available. |
| 8. | Wiring is open/has high | 8. | Check for broken wires or disconnected/corroded |
|
| resistance. |
| connections, and repair/replace as necessary. |
| 9. | Motor is at fault. | 9. | Test/repair/replace. |
| 10. | Start delay module is at fault. | 10. | Adjust to correct delay; replace module. |
|
|
|
|
|
Machine stalls or is | 1. | Motor connection is wired | 1. | Correct motor wiring connections. |
underpowered. |
| incorrectly. | 2. | Test for good contacts; correct the wiring. |
| 2. | Plug/receptacle is at fault. | 3. | Test by rotating shaft; rotational grinding/loose |
| 3. | Motor bearings are at fault. |
| shaft requires bearing replacement. |
| 4. | Motor has overheated. | 4. | Clean off motor, let cool, and reduce workload. |
| 5. | Contactor not getting energized or | 5. | Test for power on all legs and contactor operation. |
|
| has poor contacts. |
| Replace if faulty. |
| 6. | Motor is at fault. | 6. | Test/repair/replace. |
| 7. | Centrifugal switch is at fault. | 7. | Adjust/replace centrifugal switch if available. |
|
|
|
|
|
Machine has vibration or | 1. | Motor or component is loose. | 1. | Inspect/replace stripped or damaged bolts/nuts, |
noisy operation. |
|
|
| and |
| 2. | Motor fan is rubbing on fan cover. | 2. | Replace dented fan cover; replace loose/damaged |
|
|
|
| fan. |
| 3. | Cast iron motor mount loose/ | 3. | Tighten/replace. |
|
| broken. | 4. | Test by rotating shaft; rotational grinding/loose |
| 4. | Motor bearings are at fault. |
| shaft requires bearing replacement. |
| 5. | Centrifugal switch. | 5. | Replace |
|
|
|
|
|
G0508 10 HP Industrial Dust Collector |