Lincoln Electric 250 manual Welding Controls, Weld Mode Selector Switch, ARC Control

B-2 OPERATION B-2

1

2

3

4

WELDING CONTROLS:

1. OUTPUT CONTROL: The CONTROL dial provides continuous control of the welding current or welding voltage depending on the selected welding mode. This control is not active in the CC-STICK, PIPE, and CV-WIRE modes when a remote control or wire feeder with remote control is connected to either the 6 pin or 14 pin Amphenol.

2. WELD MODE SELECTOR SWITCH:

(Provides four selectable welding modes)

CV-WIRE PIPE CC-STICK TOUCH START TIG

15 14

13

12

11

10

9

8

7

6

5

CC-STICK/PIPE modes: In these modes, the ARC CONTROL knob sets the short circuit current during stick welding (arc-force). Increasing the number from - 10 to +10 increases the short circuit current and pre- vents sticking of the electrode to the plate while weld- ing. This can also increase spatter. It is recommended that the ARC CONTROL be set to the minimum num- ber without electrode sticking. Start with a setting at 0.

CV-WIRE mode: In this mode, turning the ARC CON- TROL clockwise from –10 (soft) to +10 (crisp) changes the arc from soft and washed-in to crisp and narrow. It acts as an inductance control. The proper setting depends on the procedure and operator preference. Start with a setting at 0.

3. ARC CONTROL :

The ARC CONTROL WIRE/STICK dial is active in the WIRE, STICK and PIPE modes, and has different functions in these modes. This control is not active in the TIG mode. DC PIPE mode for machines below code 10900.

4.WELD OUTPUT TERMINALS WITH FLANGE NUT:

Provides a connection point for the electrode and work cables.

RANGER 250