| TROUBLESHOOTING | |||
|
|
|
|
|
| Observe all Safety Guidelines detailed throughout this manual | |||
|
|
|
|
|
| PROBLEMS |
| POSSIBLE | RECOMMENDED |
| (SYMPTOMS) |
| CAUSE | COURSE OF ACTION |
|
|
| TIG MODE PROBLEMS |
|
Machine output is intermittently lost. | 1. | Problem may be caused by high |
| |
Gas flow and high frequency are |
| frequency interference. Make sure |
| |
also interrupted. |
| that the machine is grounded |
| |
|
|
| properly according to the installa- |
|
|
|
| tion instructions. If there are other |
|
|
|
| high frequency sources in the |
|
|
|
| area, make certain that they are |
|
|
|
| grounded properly. |
|
|
| 2. | Check Amptrol for proper opera- |
|
|
|
| tion and loose connections. |
|
|
| 3. | Check to make sure that the input | If all recommended possible areas of |
|
|
| voltage is correct for the machine | misadjustment have been checked |
|
|
| reconnect configuration. Refer to | and the problem persists, Contact |
|
|
| Reconnect Procedure in the | your local Lincoln Authorized |
|
|
| Installation section of this report. | Field Service Facility. |
Arc “Flutters” when TIG welding. | 1. | Tungsten electrode may be too |
| |
|
|
| large in diameter for the current |
|
|
|
| setting. |
|
|
| 2. | Tungsten not “sharp” when weld- |
|
|
|
| ing in DC - mode. |
|
|
| 3. | Gas shielding may be insufficient. |
|
|
|
| Increase gas flow; reduce tung- |
|
|
|
| sten stickout beyond gas cup. |
|
|
| 4. | Check for contaminated gas or |
|
|
|
| leaks in the gas line, torch, or con- |
|
|
|
| nections. |
|
|
| 5. | If a helium blend is used as a |
|
|
|
| shielding gas, then reduce the |
|
|
|
| percentage of helium. |
|
|
|
|
| |
Arc “Pulsates” when AC TIG weld- | 1. | Make sure the gas and procedure |
| |
ing. |
| are correct for the process being |
| |
|
|
| used. |
|
|
| 2. | Micro Switch mounted on Polarity |
|
|
|
| Switch is not opening in “AC” |
|
|
|
| mode. |
|
|
|
|
|
|
|
|
|
|
|
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.