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F-23TROUBLESHOOTING AND REPAIRF-23

POWER BOARD TEST

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 1-888-935-3877.

TEST DESCRIPTION

This test will help determine if the power board is receiving the correct voltages and also if the power board is regulating and producing the correct DC voltages.

MATERIALS NEEDED

Volt-Ohmmeter

3/8” Nut Driver

Wiring Diagram

POWER WAVE 355M/405M

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Image 69
Lincoln Electric 355M, 405M service manual 23TROUBLESHOOTING and REPAIRF-23, Power Board Test