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F-171

F-171

TROUBLESHOOTING & REPAIR

INPUT RECTIFIER 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 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).

DESCRIPTION

The following procedure will aid the technician in removing the input rectifier for mainte- nance or replacement.

MATERIALS NEEDED

5 mm Allen wrench Phillips head screw driver 10 mm Open end wrench

RTV Silicone sealant (Lincoln E2861)

Dow Corning 340 Joint Compound (Lincoln E1868)

S18491 M.O.V. Assembly (if necessary)

Machine Wiring Diagram in the Electrical Diagrams section of this manual

This procedure takes approximately 45 minutes to perform.

POWER WAVE 450

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Lincoln Electric SVM112-B service manual Input Rectifier Removal and Replacement, Description