Troubleshooting Guide; Control Transformer Voltage Test - Lincoln Electric Idealarc DC600 9773MSP Service Manual

F-4
Observe Safety Guidelines
detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
Major Physical or
Damage is Evident
The Machine is dead- The Input
contactor does not operate.
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 216-383-2531 or 1-800-833-9353.
IDEALARC DC-600
TROUBLESHOOTING & REPAIR
POSSIBLE AREAS OF
MISADJUSTMENT(S)
OUTPUT PROBLEMS
Electrical Contact the Lincoln Electric Service
Dept. (216) 383-2531 or 1-800-833-
9353 (WELD)
1. Check for blown or missing
fuses in input lines.
2. Check the three- phase input
line voltage at the machine.
The input voltage must match
the rating plate and reconnect
panel.
CAUTION

TROUBLESHOOTING GUIDE

RECOMMENDED
COURSE OF ACTION
1. The ON/OFF PUSHBUTTON
(S1) may be faulty - Check for
proper operation. See wiring
diagram.
2. The Control Transformer (T2)
may be faulty.
Control Transformer Test.
3. The primary or secondary
thermostats may be open.
Check or replace. Also check
the associated wiring.
wiring diagram.
4. The pilot relay (CR2) may be
faulty. Check or replace. See
wiring diagram.
5. The input contactor coil may
be open. See wiring diagram.
6. The Control board may be
faulty.- Replace.
Perform the
See