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C-5 C-5
RANGER 250
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CONNECTION OF THE LN-25 TO THE
RANGER 250 WITH 42 VOLT REMOTE
OUTPUT CONTROL MODULE
(SEE FIGURE C.3.)
1. Shut the welder off.
2. Connect the electrode cable from the K626-XX
Input Cable Assembly to the “-” terminal of the
welder and to the LN-25 Wire Feeder. Connect the
work cable to the “+” terminal of the welder.
NOTE: Figure C.3 shows the electrode connected for
negative polarity. To change polarity, shut the welder
off and reverse the electrode and work cables at the
Ranger 250 output terminals.
NOTE: Welding cable must be sized for current and
duty cycle of application.
3. Connect the input cable from the K626-XX Input
Cable Assembly to the 14-pin amphenol on the
Ranger 250 and the input cable plug on the LN-25.
4. Set the “VOLTMETER” switch to “+” or “-” depend-
ing on the polarity chosen.
5. Set the “MODE” switch to the “CV-WIRE” position.
6. Place the “IDLER” switch to 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 voltage. 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 spec-
ifications listed in this manual.
7. Place the “WELD TERMINALS” switch in the
“REMOTELY CONTROLLED” position.
8. Adjust wire feed speed and voltage at the LN-25.
9. Set the ARC control to “0” initially and adjust to suit.
FIGURE C.3 – RANGER 250/LN-25 WITH
42 VOLT REMOTE OUTPUT CONTROL MODULE CONNECTION DIAGRAM
CAUTION
-
+–