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F-85

F-85

TROUBLESHOOTING & REPAIR

POWER MODULE/OUTPUT RECTIFIER BRIDGE ASSEMBLY

REMOVAL AND REPLACEMENT

WARNING

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 1-800-833-9353 (WELD).

TEST DESCRIPTION

This procedure will aid the technician in the removal and replacement of the power mod- ule/output rectifier bridge assembly. Once the assembly is removed, the power module PC boards and output rectifier bridge diodes can be accessed for removal and replace- ment.

MATERIALS NEEDED

3/8" Wrench

7/16" Wrench

1/2" Wrench

This procedure should take approximately 80 minutes to perform.

COMMANDER 300

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Lincoln Electric SVM145-B service manual Test Description