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TROUBLESHOOTING GUIDE - Observe Safety Guidelines detailed in the beginning of this manual.
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 1-888-935-3877.
CAUTION
TROUBLESHOOTING AND REPAIR
F-8 F-8
POWERARC® 5500
OUTPUT PROBLEMS
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENTS(S)
RECOMMENDED
COURSE OF ACTION
Low weld output and low auxiliary
output.
1. Perform the Rotor Voltage Test.
2. If the rotor voltage is low, the field
capacitor (C1) or bridge (D1) may
be faulty. Test or replace.
3. Check the rheostat (R1). Normal
resistance is 3.3 ohm.
4. The rotor may be faulty. Per form
the Rotor Resistance Test.
5. The engine RPM may be low.
Perform the Engine Throttle
Adjust ment Test.
6. If engine idle RPM is okay, the
engine may have lost horsepow-
er and be in need of major repair.
1. The generator brushes may be
worn. See the Maintenance sec-
tion of this manual or contact
your local Lincoln Electric
Authorized Field Service Facility.
2. The engine RPM may be low.
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