Lincoln Electric SVM150-A service manual Terminals Remotely Controlled

C-8 C-8

ACCESSORIES

Return to Section TOC

Return to Section TOC

CONNECTION OF THE LN-8 TO THE RANGER 250 USING K595 CONTROL CABLE (SEE FIGURE C.6.)

NOTE: If your LN-8 comes equipped with a K291 or K404 input cable, refer to CONNECTION OF THE LN- 7 Using K867 UNIVERSAL ADAPTER, rather than this discussion, to connect your Ranger 250 for wire feed welding.

1.Shut the welder off.

2.Connect the electrode cable from the LN-8 to the “+” terminal of the welder. Connect the work cable to the “-” terminal of the welder.

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

NOTE: Figure C.6 shows the electrode connected for positive polarity. To change polarity, shut the welder off and reverse the electrode and work cables at the Ranger 250 output terminals.

3.Connect the K595-XX Control Cable to the LN-8.

4.Connect the K595-XX to the 14-pin amphenol on the Ranger 250.

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

CAUTION

An 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.

6.Set the “VOLTMETER” switch to “+” or “-” depend- ing on the polarity chosen.

7.Set the “MODE” switch to “CV-WIRE.”

8.Set the “WELD TERMINALS” switch to “WELD

TERMINALS REMOTELY CONTROLLED.”

9.Adjust wire feed speed and voltage at the LN-8.

10.Adjust the “ARC” control to “0” initially and adjust to suit.

Return to Section TOC

Return to Section TOC

Return to Master TOC

Return to Master TOC

Return to Master TOC

Return to Master TOC

FIGURE C.6 – RANGER 250/LN-8 WITH K595 CONTROL CABLE CONNECTION DIAGRAM

TO LN-8 INPUT

CABLE PLUG

K595 CONTROL CABLE

14 PIN
-	+	–
AMPHENOL

TO WORK

ELECTRODE CABLE

TO WIRE FEED UNIT

RANGER 250