Return to Master TOC
Return to Master TOC
Return to Master TOC
Return to Master TOC
TROUBLESHOOTING AND REPAIR |
POWER FEED
Observe all Safety Guidelines detailed throughout this manual.
PROBLEMS | POSSIBLE AREAS OF | RECOMMENDED | |||
(SYMPTOMS) | MISADJUSTMENT(S) | COURSE OF ACTION | |||
|
|
|
|
| |
|
| FUNCTION PROBLEMS |
|
| |
|
|
|
| ||
Major physical or electrical dam- | 1. Contact your local authorized | 1. | Contact the Lincoln Electric | ||
age is evident when the sheet | Lincoln Electric Field Service |
| Service Department, | ||
metal cover(s) are removed. | Facility for technical assistance. |
| 2531 or | ||
|
|
|
|
| (WELD). |
|
|
|
| ||
No wire feed, solenoid or arc volt- | 1. The gun trigger may be faulty. | 1. | Check the continuity of leads | ||
age. | The STATUS LEDs are | Check or replace. |
| #556 and #557 from the gun | |
steady green. |
|
|
| trigger receptacle to plug J5 | |
|
| 2. Make certain the Control Box is |
| pins #11 and #12. See wire | |
|
| configured for a wire feeding |
| drive wiring diagram. | |
|
| mode. |
|
|
|
|
|
|
| 2. | The wire drive control board |
|
| 3. Check option panel connec- |
| may be faulty. | |
|
| tions and switch(s) for proper |
|
| |
|
| operation. | 3. | The Control Box control board | |
|
|
|
|
| may be faulty. |
|
|
|
| ||
No control of wire feed speed. All | 1. Check for a mechanical restric- | 1. | Perform the Tach Feedback | ||
STATUS LEDs are steady green. | tion in the wire feed path. |
| Test. | ||
The preset wire feed speed is |
|
|
|
| |
adjustable on the Control Box. |
|
| 2. | The wire drive control board | |
|
|
|
|
| may be faulty. |
|
|
|
| ||
No welding arc voltage when the | 1. The power source may unable | 1. | Make certain the Power Wave | ||
gun trigger is activated. The wire | to produce welding output due |
| 455 power source is function- | ||
feeds normally and the gas sole- | to a thermal fault or other mal- |
| ing correctly. | ||
noid | functions properly. The | function. Check STATUS LED |
|
| |
STATUS LEDs are steady green | on Power Wave 455 machine. | 2. | The wire drive control board | ||
on the wire drive unit and the | See | Power Wave 455 |
| may be faulty. | |
Contol Box. | Troubleshooting. |
|
| ||
|
|
|
| 3. | The Control Box control board |
|
|
|
|
| may be faulty. |
|
|
|
| ||
The wire feed speed does not | 1. The run in and weld wire feed | 1. | Perform the Current Trans- | ||
change when welding current is | speeds may be set to the same |
| ducer Test. | ||
established. The WFS stays at the | value. | Set run in speed to a |
|
| |
value that gives best starting | 2. | If the run in wire feed speed | |||
are steady green. | results. |
|
| cannot be adjusted, perform the | |
|
|
|
|
| Tach Feedback Test and also |
|
|
|
|
| the Drive Motor Test. |
|
|
|
| 3. | The wire drive control board |
|
|
|
|
| may be faulty. |
|
|
|
|
|
|
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
