Filter
Top Products
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
The output control unit, also known as a variable reactor, functions like a very high cur-
rent, highly specialized rheostat. It works together with the series coils in the generator to
regulate the weld output and the weld output volt/amp curve. See the theory of operation
section of this manual for a more complete description.
This procedure should be performed if a visual inspection of the unit indicates excessive
wear, dirt, or damage. It should also be performed if the output control unit fails a ground
test, or if called for in the dead short, first step, or open reactor tests. It should also be
done if the weld output is low or erratic, and the auxiliary output is normal.
MATERIALS NEEDED
Miscellaneous Hand Tools
400 to 600 Grit sand paper
Ohm meter
OUTPUT CONTROL UNIT (VARIABLE REACTOR)
INSPECTION AND SERVICE PROCEDURE
TROUBLESHOOTING AND REPAIR
F-59 F-59
SAE-400 SEVERE DUTY
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC
Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC
WARNING