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TROUBLESHOOTING & REPAIR | ||||||
| Observe all Safety Guidelines detailed throughout this manual |
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| PROBLEMS |
| POSSIBLE AREAS OF |
| RECOMMENDED |
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| (SYMPTOMS) |
| MISADJUSTMENTS(S) |
| COURSE OF ACTION | |
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| TRAVEL FUNCTION PROBLEMS |
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The travel will not function with the 1. | Make sure the jumper leads #691 1. | If light 7H, located on the logic | ||||
travel switch in the “Auto” postion. | and #692 are connected properly | board, does light when the auto- | ||||
The travel operates correctly with the | to the correct pins on the logic | matic travel is active check the | ||||
travel switch in the “Hand” position. | board. See wiring diagram. | CR2 relay. Normal coil resis- | ||||
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| tance is 10,000 ohms. The con- | |
| 2. | Check the travel switch (S2) and | tacts (terminals 2 and 4) should | |||
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| associated leads for loose or | “close” when 110VDC is applied | ||
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| faulty connections. See wiring | to the relay coil (terminals 1 + | ||
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| diagram. | and 3 |
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| 3. Check light 7H located on the |
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| logic board. This light should be |
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| ON when the “Auto” travel is |
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| active. If light 7H does not light |
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| the logic board may be faulty. |
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The travel runs continuously when 1. | Make sure the jumper leads #691 | 1. | The 2CR relay may be faulty. |
the travel switch is in the “Auto” posi | and #692 are connected properly |
| The contacts (terminals 2 and 4) |
tion. | to the correct pins on the logic |
| may be stuck closed. |
| board. See wiring diagram. |
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| 2. | Check the associated leads for |
2. | Check light 7H on the logic board. |
| misconnections. See wiring dia- |
| If light 7H is always ON the logic |
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| board may be faulty. |
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CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed. Call