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TROUBLESHOOTING & REPAIR | ||||||
TROUBLESHOOTING GUIDE |
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| Observe Safety Guidelines | |||
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| detailed in the beginning of this manual. | |||
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PROBLEMS |
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| POSSIBLE AREAS OF |
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(SYMPTOMS) |
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| MISADJUSTMENT(S) |
| COURSE OF ACTION |
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| TIG MODE PROBLEMS |
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Machine output is intermittently lost. | 1. | The problem may be caused by | 1. | Check for loose or faulty connec- | ||
Gas flow and high frequency are |
| high frequency interference. |
| tion on the leads between the |
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also interrupted. |
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| Make sure that the machine is |
| remote receptacle and plug J5 |
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| grounded properly according to |
| on the control board. See wiring | |
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| the installation instructions. If |
| diagram. |
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| there are other high frequency |
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| sources in the area, make certain | 2. Check the plugs on the control | ||
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| that they are grounded properly. |
| board for loose connections. |
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| 2. | Make sure the Amptrol is operat- | 3. | The control board may be faulty. | |
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| ing properly. |
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| 3. Check to make sure that the |
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| input voltage is correct for the |
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| machine reconnect configuration. |
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| Refer to Reconnect Procedure |
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| in the Installation section of this |
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| manual. |
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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
