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C-10 C-10
RANGER 9 RANGER 9
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CONNECTION OF THE LN-742 TO THE
RANGER 9 (SEE FIGURE C.7.)
1. Shut the welder off.
2. Connect the electrode cable from the LN-742 to
the “ELECTRODE” terminal of the welder. Connect
the work cable to the “TO WORK” terminal of hte
welder.
NOTE: Welding cable must be sized for current and
duty cycle of application.
3. Connect the K592 Control Cable to the 14 pin
amphenol on the RANGER 9 and the input cable
plug on the LN-742.
4. Set the welder “polarity” switch to the desired
polarity, either DC (-) or DC (+).
5. Set the “RANGE” switch to the “WIRE FEED” posi-
tion.
6. Place the “IDLER” switch in the “AUTO” or “HIGH”
position as desired.
Any increase of the high idle engine RPM by changing
the governor setting or overriding the throttle linkage
will cause an increase in the AC auxiliary volage. If this
voltage goes over 140 volts, wire feeder control cir-
cuits may be damaged. The engine governor setting
is preset at the factory — do not adjust above RPM
specifications listed in this manual.
7. Place the WELDING TERMINALS switch in the
“REMOTELY CONTROLLED” position.
8. Adjust wire feed speed at the LN-742 and set the
welding voltage with the output “CONTROL” to a
CV (constant voltage) position at the welder.
NOTE: If optional remote control is used, place the
output control switch in the “CONTROL
REMOTE” position.
FIGURE C.7
RANGER 9/LN-742 CONNECTION DIAGRAM
CAUTION