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TROUBLESHOOTING AND REPAIR |
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Troubleshooting Guide – See Wiring Diagrams for location of specified |
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| Observe Safety Guidelines | |||
components. See Wiring Diagrams for troubleshooting of specific circuits. | 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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FUNCTIONAL PROBLEMS (Continued) |
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When the gun trigger is pulled there | 1. Check the shielding gas source | 1. When the gun trigger is pulled | |||||
IS wire feed and arc voltage but | for proper connections and |
| check for the presence of 115 | ||||
there is NOT any gas flow. | pressures. |
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| VAC at leads #7 and #32A. If | |||
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| 115 VAC is present and the gas | |||
| 2. Check for kinked or loose gas |
| solenoid does not activate then | ||||
| hose connections. |
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| the solenoid may be defective. | |||
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| Replace per Gas Solenoid and | |||
| 3. If a timer kit is used, unplug |
| Connections | Replacement | |||
| J104 from the control PC board |
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| and install the jumper plug. See |
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| wiring diagram. If the problem is | 2. If the 115 VAC is NOT present | |||||
| solved then the timer kit may be |
| at #7 and #32A then perform | ||||
| defective. |
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| the Control Relay Test. | |||
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| 3. The | control board may be | |||
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| faulty. Replace per the Control | |||
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| PC | Board | Replacement | |
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| procedure. |
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Meter kit does not function. | 1. Ensure lead #567 is connected | 1. | Check | meter | kit cable | ||
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| connector in the control box for | ||||
| wire drive compartment. |
| a tight connection. | ||||
| 2. Check lead #21 for proper | 2. | For digital meter kit: ensure | ||||
| connection. See | Connection |
| wires #508 and #509 are | |||
| Diagrams in the | Installation |
| connected on the control PC | |||
| Section. |
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| board. |
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| 3. Perform | the Trigger Trans- | |||
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| former Test. |
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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
