Lincoln Electric PRO-CUT 25 SVM149-A Service Manual page 41

F-7
Observe Safety Guidelines
detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
Will only cut thin gauge material or
cutting cutting is 1/2 of what it
should be. Cuts for 3 seconds
then quits.
When nothing is described for your
problem, or you have performed
your test with no solution.
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, con-
tact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed.
Call 1-888-935-3877.
TROUBLESHOOTING & REPAIR
POSSIBLE AREAS OF
MISADJUSTMENT(S)
FUNCTION PROBLEMS
The ground lead or clamp is dis-
connected. Unit is not transferring
to cut mode.
CAUTION
PRO-CUT 25
TROUBLESHOOTING GUIDE
RECOMMENDED
COURSE OF ACTION
1. Replace or repair, clamp or
cable.
2. Clamp directly to the piece to
be cut.
3. Look for the transfer signal from
the inverter board to the control
Board per the enhanced dia-
gram.
4. Possible replacement of the
inverter board per the signal of
the enhanced diagram.
5. Possible replacement of the
Control Board per the signal of
the enhanced diagram.
6. Use the correct extension cord.
See the instruction manual.
1. Unplug and re-plug in all the
printed circuit board harness
connectors.
F-7