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TROUBLESHOOTING & REPAIR |
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TROUBLESHOOTING GUIDE |
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| Observe Safety Guidelines | ||
| detailed in the beginning of this manual. | ||||
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PROBLEMS | POSSIBLE AREAS OF | RECOMMENDED |
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(SYMPTOMS) | MISADJUSTMENT(S) | COURSE OF ACTION | |||
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| FUNCTION PROBLEMS |
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Circuit breaker (5 amp) repeatedly | 1. Check or replace gun trigger | 1. | Disconnect lead #500 from the | ||
trips when the gun trigger is acti- | and leads. Make sure the trig- |
| trigger board. If the breaker still | ||
vated. | ger leads are not shorted to the |
| trips when the gun trigger is | ||
| electrode or work cables. |
| activated, the trigger board may | ||
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| be faulty. Replace |
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| 2. | Disconnect any accessory that | ||
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| may be connected to terminals | ||
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| #7 and #32A. See the Wiring | ||
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| Diagram. If the problem is | ||
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| resolved, the accessory may be | ||
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| faulty. Replace. |
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| 3. | Perform the Wire Drive Motor | ||
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| Test. |
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| 4. | The power PC board may be | ||
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| faulty. Replace. |
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Circuit breaker (5 amp) trips when | 1. Disconnect any kits that may be | 1. | Disconnect lead #620 from trig- | ||
power is applied to the | incorporated in the |
| ger board. | See | the Wiring |
trigger is NOT activated. | K319, etc.). Be sure to install |
| Diagram. | If the | problem is |
| any necessary jumper plugs. If |
| resolved, the trigger board may | ||
| the problem is resolved, the |
| be faulty. Replace. |
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| fault may be in the disconnect- | 2. | Perform the T2 Transformer | ||
| ed kit. | ||||
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| Test. |
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| 3. | Check the harness leads #32A, | ||
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| #31, and #531 for shorts or | ||
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| grounds. | See | the Wiring |
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| Diagram. |
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| 4. | The power PC board may be | ||
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| faulty. Replace. |
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CAUTION
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, con- tact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call