TROUBLESHOOTING AND REPAIR | ||
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Observe Safety Guidelines detailed in the beginning of this manual.
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PROBLEMS
(SYMPTOMS)
Low weld output and low auxiliary output.
POSSIBLE AREAS OF
MISADJUSTMENT(S)
OUTPUT PROBLEMS
1.The generator brushes may be worn. See the Maintenance Section of this manual or contact your local Lincoln Electric Authorized Field Service Facility.
2.The engine RPM may be low.
RECOMMENDED
COURSE OF ACTION
1.Perform the Rotor Voltage Test.
2.If the rotor voltage is low, the field capacitor (C1) or bridge (D2) may be faulty. Test or replace.
3.Check the rheostat (R1). Normal resistance is 3.3 ohm. See the Rheostat Removal and Replacement Procedure.
4.The rotor may be faulty. Per- form the Rotor Resistance Test.
5.The engine RPM may be low. Perform the Engine Throttle Adjustment Test.
6.If engine idle RPM is okay, the engine may have lost horse- power and be in need of major repair.
7.Perform Field Diode Test.
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CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed. Call