Return to Section TOC
Return to Section TOC
Return to Section TOC
Return to Section TOC
Return to Master TOC
Return to Master TOC
Return to Master TOC
Return to Master TOC
TROUBLESHOOTING AND REPAIR |
| |||||
|
|
|
|
| ||
|
|
|
|
| ||
Observe Safety Guidelines detailed in the beginning of this manual. |
|
|
|
| ||
|
|
|
|
|
| |
PROBLEMS |
| POSSIBLE AREAS OF |
| RECOMMENDED |
| |
(SYMPTOMS) |
| MISADJUSTMENT(S) | COURSE OF ACTION | |||
|
|
|
|
|
|
|
|
| OUTPUT PROBLEMS |
|
|
|
|
Major Physical or Electrical |
| 1. Contact The Lincoln Electric | ||||
Damage is Evident. |
|
| Service Dept. | |||
|
|
| ||||
No weld output and no auxiliary | 1. Check the brushes for wear and | 1. Check for the presence of 12 | ||||
power. Engine runs normally. | proper contact to the rotor slip | VDC (at the pc board) from lead | ||||
|
| rings. | #224 to frame ground. | This is | ||
|
|
| the supply voltage to the board | |||
|
|
| and is present when the engine | |||
|
|
| is running and the S3 switch is | |||
|
|
| in the “HIGH” or “AUTO” posi- | |||
|
|
| tion. If the 12VDC is missing | |||
|
|
| check the leads, switches and | |||
|
|
| connections associated with the | |||
|
|
| lead #224. See the Wiring | |||
|
|
| Diagram. |
|
| |
|
|
| 2. Perform the Rotor Voltage | |||
|
|
| Test. |
|
|
|
|
|
| 3. If Rotor Voltage Test is normal, | |||
|
|
| then | preform | the | Rotor |
|
|
| Resistance Test. |
|
| |
|
|
| 4. If the Rotor Voltage Test is NOT | |||
|
|
| normal, perform | the Auxiliary | ||
|
|
| and | Field Winding | Voltage | |
|
|
| Test. The Printed Circuit Board | |||
|
|
| may be faulty. Replace |
| ||
|
|
|
|
|
|
|
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
