Lincoln Electric SVM134-A Manual Do Utilizador

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 1-800-833-9353.

The engine starts and runs at the
correct speed but there is no, or
very low, welder output.  The DC
auxiliary output voltage is normal.

1.  Check the welding cables for

loose or faulty connections.

2.  Check for loose or missing

brushes in the welding genera-
tor.

1.  Check the fine current control

field rheostat for resistance and
proper operation.  Normal resis-
tance is 64 ohms.  Check asso-
ciated wires for loose or faulty
connections.  See the Wiring
Diagram.

2.  Perform  the  Main Generator

3.  Check the continuity of the inter-

pole coils.  They should show
continuity from the positive
brusholders to the positive out-
put terminal and should NOT be
grounded to the generator
frame.

4.  Check the continuity of the

series coils.  They should show
continuity from the negative
brusholders, through the current
selector switch, to the negative
output terminal and should NOT
be grounded to the generator
frame.

5.  The main armature may be

faulty.  Check for grounds and/
or shorts.