Lincoln Electric SVM145-B service manual Welding CV

C-7 C-7

ACCESSORIES

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CONNECTION OF THE LN-8 TO THE COMMANDER 300 USING K595 INPUT CABLE ASSEMBLY (SEE FIGURE C.4.)

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.4 shows the electrode connected for positive polarity. To change polarity, shut the welder off and reverse the electrode and work cables at the Commander 300 output terminals.

3.Connect the K595-XX Input Cable Assembly to the LN-8.

4.Connect the K595-XX to the 14-pin amphenol on the Commander 300.

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.Set the LOCAL/REMOTE switch to “REMOTE.”

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

8.Set the OUTPUT RANGE switch to “WIRE

WELDING CV.”

9.Set the WELDING TERMINALS switch to

“WELDING TERMINALS REMOTELY CON- TROLLED.”

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

11.Adjust the ARC CONTROL to the desired level (“soft” or “crisp”).

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FIGURE C.4

COMMANDER 300/LN-8 WITH K595 INPUT CABLE ASSEMBLY CONNECTION DIAGRAM

TO LN-8 INPUT

CABLE PLUG

K595 INPUT CABLE ASSEMBLY

14 PIN	+	–
AMPHENOL

TO WORK

ELECTRODE CABLE

TO WIRE FEED UNIT

COMMANDER 300