Lincoln Electric RANGER 250 LPG IM931 - Manual (Page 20)

B-2 OPERATION B-2
WELDING CONTROLS:
1. OUTPUT CONTROL: The CONTROL dial pro-
vides continuous control of the welding current or weld-
ing voltage depending on the selected welding mode.
This control is not active in the CC-STICK, DOWNHILL
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
DOWNHILL PIPE
CC-STICK
TOUCH START TIG
3. ARC CONTROL :
The ARC CONTROL WIRE/STICK dial is active in the
WIRE, STICK and DOWNHILL PIPE modes, and has
different functions in these modes. This control is not
active in the TIG mode.
CC-STICK mode: In this mode, the ARC CONTROL dial
sets the short circuit current (arc-force) during stick welding
to adjust for a soft or crisp arc. Increasing the number from -
10(soft) to +10(crisp) increases the short circuit current and
prevents sticking of the electrode to the plate while welding.
This can also increase spatter. It is recommended that the
ARC CONTROL be set to the minimum number without
electrode sticking. Start with a setting at 0.
DOWNHILL PIPE MODE: In this mode, the ARC CONTROL
dial sets the short circuit current (arc force) during stick
welding to adjust for a soft or a more forceful digging arc
(crisp). Increasing the number from -10(soft) to +10(crisp)
increases the short circuit current which results in a more
forceful digging arc. Typically a forceful digging arc is pre-
ferred for root and hot passes. A softer arc is preferred for fill
and cap passes where weld puddle control and deposition
(“stacking” of iron) are key to fast travel speeds. It is recom-
mended that the ARC CONTROL be set initially at 0.
CV-WIRE mode: In this mode, turning the ARC CONTROL
clockwise from –10 (soft) to +10 (crisp) changes the arc from
soft and washed-in to crisp and narrow. It acts as an induc-
tance control. The proper setting depends on the procedure
and operator preference. Start with a setting at 0.
RANGER 250 LPG
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9
6
3
8
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7
10
11
12
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14
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