Lincoln Electric SVM150-A service manual Accessories

9. Set the ARC control to “0” initially and adjust to suit.

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.

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

4. Set the “MODE” switch to the “CV-WIRE” position.

CONNECTION OF THE LN-25 TO THE RANGER 250 “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 250 output terminals.

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

C-4

Return to Section TOC

Return to Section TOC

Return to Section TOC

Return to Section TOC

Return to Master TOC

Return to Master TOC

Return to Master TOC

Return to Master TOC

C-4

ACCESSORIES

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.

CAUTION

If you are using an LN-25 without an internal contactor, the electrode will be “HOT” when the Ranger 250 is started.

7. Place the “WELD TERMINALS” switch in the “WELD TERMINALS ON” position.

FIGURE C.2 – RANGER 250/LN-25 ACROSS THE ARC CONNECTION DIAGRAM

- -

+–

RANGER 250