Lincoln Electric RANGER 225 GXT Service Manual page 48

F-8
Observe Safety Guidelines detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
No DC welding output.
welding output and auxiliary
power is normal.
No AC welding output.
welding output and auxiliary
power is normal.
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.
TROUBLESHOOTING AND REPAIR
POSSIBLE AREAS OF
MISADJUSTMENT(S)
OUTPUT PROBLEMS
AC 1. Make sure the Polarity Switch
(S2) is in the proper position
and is "seated" correctly.
2. Make sure the electrode and
polarity are correct for the
process being used.
DC 1. Make sure the Polarity Switch
(S2) is in the proper position and
is "seated" correctly.
2. Make sure the electrode is
correct for the process being
used.
3. Make sure the welding cables
are not coiled or too long.
CAUTION
RANGER® 225 GXT
RECOMMENDED
COURSE OF ACTION
1. Perform the Output Bridge
Test.
2. Check the Choke (L1), the
Polarity switch (S2)
associated wires for loose or
faulty connections. Check the
choke winding for continuity
and test to be sure it is NOT
grounded with the choke iron.
1. Check the operation of the
Polarity Switch (S2).
check the associated wires for
loose or faulty connections.
See Wiring Diagram.
2. Check for continuity from lead
"S2" to lead "E" located in the
main stator. See Wiring
Diagram.
F-8
and
Also