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CONNECTION OF THE LN-25 TO THE
RANGER 305D “ACROSS THE ARC”
(SEE FIGURE C.2.)
1. Shut the welder off.
2. Connect the electrode cable from the LN-25 to the
“-” terminal of the welder. Connect the work cable
to the “+” terminal of the welder.
NOTE: Figure C.2 shows the electrode connected for
negative polarity. To change polarity, shut the welder
off and reverse the electrode and work cables at the
Ranger 305D output terminals.
NOTE: Welding cable must be sized for current and
duty cycle of application.
3. Set the “VOLTMETER” switch to “+” or “-” depend-
ing on the polarity chosen.
4. Set the “MODE” switch to the “CV-WIRE” position.
5. Attach the single lead from the LN-25 control box
to the work using the spring clip on the end of the
lead. This is only a control lead - it carries no
welding current.
6. Place the “IDLER” switch in the “AUTO” or “HIGH”
position as desired.
If you are using an LN-25 without an internal contac-
tor, the electrode will be “HOT” when the Ranger
305D is started.
------------------------------------------------------------------------
7. Place the “WELD TERMINALS” switch in the
“WELD TERMINALS ON” position.
8. Adjust wire feed speed at the LN-25 and adjust the
welding voltage with the output “CONTROL” at the
LN-25 if optional remote control kit is used.
9. Set the ARC control to “0” initially and adjust to
suit.
ACCESSORIES
C-4 C-4
RANGER 305D
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CAUTION
+
-
TO WORK
14-PIN
AMPHENOL
6-PIN
AMPHENOL
OPTIONAL K444-1
REMOTE CONTROL
ELECTRODE CABLE
LN-25
WIRE FEEDER
TO WORK
WORK CLIP LEAD
FIGURE C.2 - Ranger 305D/LN-25 ACROSS THE ARC CONNECTION DIAGRAM