Perform the input power and, Wiring harness test, Troubleshooting & repair – Lincoln Electric INVERTEC POWER WAVE 450 SVM112-B User Manual

Page 103: Input power and wiring harness test, Warning

INPUT POWER AND WIRING HARNESS TEST

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 elec-
trical 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 1-800-833-9353 (WELD).

TEST DESCRIPTION

This test will determine if there are any short circuits or other problems on the input power
circuit that would cause the input fuses to repeatedly blow.

MATERIALS NEEDED

Volt/Ohmmeter (Multimeter)
5/16" Nut driver
3/8" Nut driver
Input and Auxiliary Circuit Wiring Diagram – Figure F.14

WARNING

TROUBLESHOOTING & REPAIR

F-43

POWER WAVE 450