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SNUBBER AND BLEEDER RESISTOR 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 the eight snubber resistors and two bleeder resistors are of the
proper value and their associated leads intact.
MATERIALS NEEDED
Volt/Ohmmeter (Multimeter)
5/16" Nut driver
3/8" Nut driver
Snubber and Bleeder Resistor Wiring Diagram – Figure F.25
WARNING
TROUBLESHOOTING & REPAIR
F-75 F-75
POWER WAVE 450
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This procedure takes approximately 30 minutes to perform.