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F-33

F-33

TROUBLESHOOTING & REPAIR

PROTECTION RELAY (CR1) 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 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 216-383-2531 or 1-800-833-9353 (WELD).

TEST DESCRIPTION

This test will determine if the correct DC voltage is being applied to the coil of the relay and also if the relay contacts are functioning properly.

MATERIALS NEEDED

Volt/Ohmmeter 5/16” Nut driver 3/8” Nut driver

12VDC power supply (battery)

RANGER 10-LX

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Lincoln Electric SVM120-A service manual Protection Relay CR1 Test