Lincoln Electric SVM128-A service manual Connection of the LN-25 to, Unused Lead Individually

C-6 C-6

ACCESSORIES

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CONNECTION OF THE LN-25 TO THE

SA-250 WITH K623-1 WIRE FEED MODULE USING K867 UNIVERSAL ADAPTER (SEE FIGURE C.3.)

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 “CV-” terminal of the welder.

NOTE: Welding cable must be sized for current and duty cycle of application.

NOTE: Figure C.3 shows the electrode connected for positive polarity. To change polarity, shut the welder off and reverse the electrode and work cables at the SA-250 output terminals. Reverse the LN-25 polarity switch.

3.Connect the K867 Universal adapter to the K433 cable and the 14 pin amphenol of the SA-250 as indicated in Figure C.3. Mount the K433 to the welder according to instructions included with the K433 kit.

4.Connect the K432-L cable to the LN-25 equipped with the K431-1 remote output control kit.

5.Place the IDLER switch in the “HIGH” position.

CAUTION

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 circuits may be damaged. The engine governor set- ting is preset at the factory — do not adjust above RPM specifications listed in this manual.

6. Adjust wire feed speed and voltage at the LN-25.

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FIGURE C.3

SA-250/LN-25 CONNECTION DIAGRAM

	SPARE
14 PIN	82	Insulate Each
AMPHENOL	81	Unused Lead
	42
		Individually	K433
	41
	21
+	31	31
CV-	32	32	K432-"L" CABLE
	2	2
	4	4
	GND	GND
K867 UNIVERSAL	75	75
ADAPTER PLUG
TO	76	76	LN-25 WIRE FEEDER
	77	77
WORK			WITH K431 OPTION
	Splice Leads and Insulate

ELECTRODE CABLE

SA-250