W1752 Owner's Manual (Mfg. 1/07+)
SERVICE
Troubleshooting
This section covers the most common problems and corrections with this type of machine. WARNING! DO NOT make any adjustments until power is disconnected and moving parts have come to a complete stop!
PROBLEM |
| POSSIBLE CAUSE |
| corrective action |
Machine does not start or a | 1. | Power supply is at fault/switched | 1. | Ensure hot lines have correct voltage on all legs and |
breaker trips. |
| OFF. |
| main power supply is switched ON. |
| 2. | Plug/receptacle is at fault or wired | 2. | Test for good contacts; correct the wiring. |
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| incorrectly. |
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| 3. | Lockout key is at fault. | 3. | Install/replace lockout key; replace switch. |
| 4. | Motor ON button or ON/OFF switch | 4. | Replace faulty ON button or ON/OFF switch. |
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| is at fault. |
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| 5. | Wiring is open. | 5. | Check for broken wires or disconnected/corroded |
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| connections, and repair/replace as necessary. |
| 6. | Motor is at fault. | 6. | Test/repair/replace. |
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Machine stalls or is under- | 1. | Plug/receptacle is at fault. | 1. | Test for good contacts; correct the wiring. |
powered. | 2. | Motor bearings are at fault. | 2. | Test by rotating shaft; rotational grinding/loose |
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| shaft requires bearing replacement. |
| 3. | Motor has overheated. | 3. | Clean off motor, let cool, and reduce workload. |
| 4. | Motor is at fault. | 4. | Test/repair/replace. |
Machine has vibration or | 1. | Workpiece or chuck is at fault. | 1. | Center workpiece in chuck or face plate; reduce |
noisy operation. |
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| RPM; replace defective chuck. |
| 2. | Motor or component is loose. | 2. | Inspect/replace stripped or damaged bolts/nuts, |
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| and |
3.Motor fan is rubbing on fan cover. 3. Replace dented fan cover; replace loose/damaged fan.
4. | Motor bearings are at fault. | 4. | Test by rotating shaft; rotational grinding/loose |
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| shaft requires bearing replacement. |
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Motor automatically shuts 1. | Short circuit in motor or loose con- | 1. | Inspect connections on motor for loose or shorted |
off. | nections. |
| terminals or worn insulation. |
2. | Incorrect fuses/circuit breakers. | 2. | Repair cause of short and or install correct fuses or |
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| circuit breakers. |
Operation
PROBLEM |
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| POSSIBLE CAUSE |
| corrective action |
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Vibration | noise | while | 1. | Belt cover loose. | 1. | Tighten the belt cover lock handle; | if neces- |
machine | is running; | noise |
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| sary install a soft, vibration dampening | material |
changes | when speed is |
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| (between the belt cover and the headstock casting. | ||
changed. |
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| 2. | Belt cover bent or dented and is | 2. | Remove belt cover and inspect the inside for dents, | ||
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| making contact with the motor pul- |
| bends, or indications of rubbing. Tap out the dent | |
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| ley or belt. |
| with a rubber mallet, bend back into proper shape, | |
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| or shim belt cover away from the motor pulley. | |
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