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Service and repair should be performed by only Lincoln Electric factory trained personnel.
Unauthorized repairs performed on this equipment may result in danger to the technician
or machine operator and will invalidate your factory warranty. For your safety and to avoid
electrical shock, please observe all safety notes and precautions detailed throughout this
manual.
If for any reason you do not understand the test procedures or are unable to perform the
test/repairs safely, contact the Lincoln Electric Service Department for electrical trou-
bleshooting assistance before you proceed. Call 1-888-935-3877.
TEST DESCRIPTION
This procedure checks for grounded components in the weld circuit. It also checks for a
short circuit condition between the positive and negative components of the weld circuit.
This test cannot detect a short circuit within the armature or a turn to turn short circuit with-
in a coil or coil set.
IMPORTANT: The machine must be clean and completely dry before this test is done.
.
MATERIALS NEEDED
Miscellaneous hand tools
Ohm meter or Multimeter
Wiring diagram
WELD CIRCUIT GROUND AND SHORT CIRCUIT TEST
TROUBLESHOOTING AND REPAIR
F-47 F-47
SAE-400 SEVERE DUTY
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WARNING