![](/images/new-backgrounds/1311104/311104115x1.webp)
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 & REPAIR |
| ||||||||||
|
|
| |||||||||
| TROUBLESHOOTING GUIDE - Observe all Safety Guidelines detailed throughout this manual |
| |||||||||
|
|
|
|
|
|
| |||||
| PROBLEMS | POSSIBLE AREAS OF |
|
| RECOMMENDED |
| |||||
| (SYMPTOMS) | MISADJUSTMENTS(S) |
|
| COURSE OF ACTION |
| |||||
|
|
|
|
|
|
|
| ||||
|
| WIRE FEEDING PROBLEMS |
|
|
|
|
| ||||
|
|
|
|
|
|
|
|
|
|
|
|
No control of wire feed speed. | 1. The | wire | feed | speed | control | 1. | The Wire Speed Control poten- | ||||
Other machine functions are nor- | may | be dirty. | Rotate | several |
| tiometer may be faulty. | Check | ||||
mal. |
| times and check if problem is |
| or | replace. | See | Wiring | ||||
|
| resolved. |
|
|
|
| Diagram. |
|
| ||
|
|
|
|
|
|
| 2. | Perform the Wire Drive Motor | |||
|
|
|
|
|
|
|
| and Tach Feedback test. | |||
|
|
|
|
|
|
| 3. | The control board may be faulty. | |||
|
|
|
|
|
|
|
| Replace. |
|
| |
|
| 1. If the drive rolls are turning then |
|
|
|
|
| ||||
There is no wire feed when gun trig- | check for a mechanical restric- | 1. | Perform the Wire Drive Motor | ||||||||
ger is pulled. Normal open circuit | tion in the wire feed path. |
| and Tach Feedback Test. | ||||||||
voltage is present. |
|
|
|
|
|
|
|
|
|
| |
|
| 2. The gun liner may be clogged. | 2. The Wire Feed Control poten- | ||||||||
|
| Check or Replace. |
|
| tiometer may be faulty. | Check | |||||
|
|
|
|
|
|
|
| or | replace. | See | Wiring |
|
| 3. If the drive rolls are NOT turning |
| Diagram. |
|
| |||||
|
| when the gun trigger is pulled |
|
|
|
|
| ||||
|
| then contact your local Lincoln | 3. The control board may be faulty. | ||||||||
|
| Electric | Authorized | Field |
| Replace. |
|
| |||
|
| Service Facility. |
|
|
|
|
|
|
| ||
|
|
|
|
|
|
|
|
|
|
|
|
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, con- tact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed call 216-