Trouble |
| Cause |
| What To Do |
|
|
|
| |
Output control not functioning on | 1. Output Control switch in wrong | 1. | Place switch in “Remote”. | |
“Remote” control. |
| position. |
|
|
| 2. | Faulty Output Control switch. | 2. | Check and replace if found faulty. |
| 3. | Faulty remote control poten- | 3. | Check and replace if found faulty. |
|
| tiometer. |
|
|
| 4. | Leads or connections open in | 4. | Check all leads and connections, |
|
| control circuit. |
| internal or remote, for continuity; |
|
|
|
| repair if necessary. |
| 5. | Faulty Control PC Board. | 5. | Replace. See Procedure for |
|
|
|
| Replacing PC Boards. |
|
|
|
| |
Poor arc striking with semiautomatic | 1. Poor work connection. | 1. | Work connection must be ade- | |
or automatic wire feeders. |
|
|
| quate for application. |
| 2. | Improper procedures. | 2. | Adjust procedures for improved |
|
|
|
| starting. |
| 3. | Defective Control PC Board. | 3. | Replace. See Procedure for |
|
|
|
| Replacing PC Boards. |
|
|
|
| |
Poor arc characteristics. | 1. Defective Control PC Board. | 1. | Replace. See Procedure for | |
|
|
|
| Replacing PC Boards. |
| 2. | Capacitor(s) in output circuit | 2. | Replace entire bank of capaci- |
|
| failed. A failure is indicated if the |
| tors. Do not replace individual |
|
| small vent plug on top of a |
| capacitors. |
|
| capacitor is raised or blown out. |
|
|
|
|
|
| WARNING: The liquid electrolyte |
|
|
|
| in these capacitors is toxic. Avoid |
|
|
|
| contact with any portion of your |
|
|
|
| body. Clean up vented electrolyte |
|
|
|
| using rubber gloves and a water |
|
|
|
| dampened cloth. Any electrolyte |
|
|
|
| which gets on skin, clean with |
|
|
|
| soap and water. |
|
|
|
|
|
– 25 –
