Lincoln Electric R3R-500, R3R-300 service manual Main Transformer T1 Voltage Test, Description

Models: R3R-500 R3R-300

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F-19

F-19

TROUBLESHOOTING & REPAIR

MAIN TRANSFORMER (T1) VOLTAGE 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 216-383-2531 or 1-800-833-9353 (WELD).

DESCRIPTION

This test will determine if the correct voltages are being applied to the primary windings of the Main Transformer (T1) and induced on the secondary winding, auxiliary windings, and phase angle windings.

MATERIALS NEEDED

Volt/Ohmmeter (Multimeter) 5/16” Nut driver

IDEALARC R3R Wiring Diagrams (See the Electrical Diagrams section of this manual.)

This procedure takes approximately 25 minutes to perform.

IDEALARC R3R

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Lincoln Electric R3R-500, R3R-300 service manual Main Transformer T1 Voltage Test, Description