TOC
TOC
|
| TROUBLESHOOTING & REPAIR | |
Observe Safety Guidelines | TROUBLESHOOTING GUIDE | ||
detailed in the beginning of this manual. |
| ||
PROBLEMS (SYMPTOMS)
The ammeter displays a very high value (greater than 316 amps) when the machine is not loaded. Machine may have low or no out- put.
POSSIBLE AREAS OF MISADJUSTMENT(S)
OUTPUT PROBLEMS
None.
RECOMMENDED COURSE OF ACTION
1.The shunt leads (#221 and #222) may be loose or open. Check the red and white twist- ed pair from the shunt to the control board. Refer to wiring diagram.
2.The Control board may be faulty. If the shunt leads have continuity (zero ohms) to the control board, pins 1J7 and 2J7, then replace the control board. See pin locations in Figure F.1 at end of this Guide.
Return to Section TOC
Return to Master TOC
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
