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TROUBLESHOOTING & REPAIR
F-9 F-9
RANGER 9 RANGER 9
TROUBLESHOOTING GUIDE Observe Safety Guidelines
detailed in the beginning of this manual.
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, con-
tact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call
216-383-2531 or 1-800-833-9353.
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENT(S)
RECOMMENDED
COURSE OF ACTION
OUTPUT PROBLEMS
No constant voltage (CV) welding
output. Constant current (CC) and
the auxiliary power are operating
normally.
1. Make sure the Range switch
(S2) is in the proper position
(CV) and “seated” correctly.
2. Make sure the wire feeder and
welding cables are connected
correctly.
1. Check the operation of the
Range switch (S2) and check
the associated wires for loose
or faulty connections. See
Wiring Diagram.
2. Check for continuity from leads
C1, C2, and C3 to lead W1
located in the main stator. See
Wiring Diagram.
The constant voltage (CV) welding
output is low or unstable.
Constant current (CC) and the aux-
iliary power are operating normally.
1. Make sure the Range switch
(S2) is in the proper position
(CV) and “seated” correctly.
2. Make sure the wire feeder and
welding cables are connected
correctly.
1. Check the operation of the
Range switch (S2) and check
the associated wires for loose
or faulty connections. See
Wiring Diagram.
2. The capacitor bank (C2, C3, C4,
C5) may be faulty. Check or
replace.