of polarity required by the electrode. Connect the
work lead to the other terminal. Welding cable
must be sized for current and duty cycle of the
application.

3. 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.

4. Set the voltmeter switch to the electrode polarity

chosen.

5. Set “CONTROL SELECT” to “REMOTE”.

6. Set the “MODE” to the “CV-WIRE” position.

7. Set “WELD TERMINALS SELECT” to the

“REMOTE” position.

8. Set the “ARC CONTROL” to the “O” position and

then adjust to suit.

9. Connect the K432 remote control cable to the LN-

25.

10. Connect the K876 adapter to the K432 and to the

24/42VAC 14-pin amphenol located at the rear of
the V350-PRO.

11. Adjust the wire feed speed and voltage at the LN-

25.

NOTE: See Figure C.4 for connection Using K867
adapter.

T O
W O R K

1 4 P I N ( 2 4 / 4 2 V A C )
A M P H E N O L

E L E C T R O D E C A B L E
T O L N - 2 5

K 4 3 2 R E M O T E
C O N T R O L C A B L E

I N V E R T E C
P O W E R S O U R C E

L N - 2 5 W I T H
K 4 3 1 O P T I O N

6 P I N A M P H E N O L

K 8 7 6 A D A P T E R

NOTE: Illustration shows electrode connected for positive polarity.

Figure C.3 LN-25 with K431 Remote Option to the V350-PRO

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