Lincoln Electric IM813 RANGER 305 D (CE) - Manual (Page 21)

B-3 OPERATION B-3
4. ARC CONTROL : The ARC CONTROL dial is
active in the CV-WIRE, CC-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 weld-
ing to adjust for a soft or crisp arc. Increasing the dial 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 recommend-
ed that the ARC CONTROL be set to the minimum num-
ber without electrode sticking. Start with a setting at 0.
DOWNHILL PIPE mode: In this mode, the ARC CON-
TROL 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 preferred for root and hot passes. A softer arc is pre-
ferred for fill and cap passes where weld puddle control
and deposition ("stacking" of iron) are key to fast travel
speeds. It is recommended that the ARC CONTROL be
set initially at 0.
CV-WIRE mode: In this mode, turning the ARC CON-
TROL clock wise from –10 (soft) to +10 (crisp) changes
the arc from soft and washed-in to crisp and narrow. It
acts as an inductance/pinch control. The proper set-
ting depends on the procedure and operator prefer-
ence. Start with a setting of 0.
5. WELD OUTPUT TERMINALS WITH
FLANGE NUT: Provides a connection point for
the electrode and work cables.
6. GROUND STUD: (graphic)
Provides a connection point for connecting the
machine case to earth ground.
7. 14-PIN CONNECTOR: For attaching wire
feeder control cables to the RANGER 305D (CE).
Includes contactor closure circuit, auto-sensing
remote control circuit, and 42V power. The remote
control circuit operates the same as the 6 Pin
Amphenol.
Note: The 14-pin connector does not include 120V.
8. 6-PIN CONNECTOR: For attaching optional
remote control equipment. Includes auto-sensing
remote control circuit.
9. WELD TERMINALS CONTROL SWITCH: In
the WELD TERMINALS ON position, the output is
electrically hot all the time.
In the REMOTELY CONTROLLED position, the out-
put is controlled by a wire feeder or amptrol device,
and is electrically off until a remote switch is
depressed.
10. WIRE FEEDER VOLTMETER SWITCH:
Matches the polarity of the wire feeder voltmeter
to the polarity of the electrode.
ENGINE CONTROLS: (Figure B.2)
FIGURE B.2
11. RUN/STOP SWITCH - RUN position ener-
gizes the engine prior to starting. STOP position
stops the engine. The oil pressure interlock switch
prevents battery drain if the switch is left in the
RUN position and the engine is not operating.
12. GLOW PLUG PUSH BUTTON - When
pushed activates the glow plugs as well as the
electric fuel pump for quick starting. Glow plug
should not be activated for more then 20 seconds
continuously.
AUTO BLEED FUNCTION – Air will automatically
bleed from the fuel system by simply pushing the
GLOW PLUG BUTTON. It is generally not required
to crack open fittings in the fuel system to bleed air
from the fuel system.
13. START PUSH BUTTON - Energizes
the starter motor to crank the engine.
14. IDLER SWITCH - Has two positions as follows:
1) In the HIGH position, the engine runs at the high
idle speed controlled by the engine governor.
2) In the AUTO position, the idler operates as fol-
lows:
• When switched from HIGH to AUTO or after start-
ing the engine, the engine will operate at full speed
for approximately 12 seconds and then go to low
idle speed.
• When the electrode touches the work or power is
drawn for lights or tools (approximately 100 Watts
minimum), the engine accelerates and operates at
full speed.
• When welding ceases or the AC power load is
turned off, a fixed time delay of approximately 12
seconds starts. If the welding or AC power load is
not restarted before the end of the time delay, the
idler reduces the engine speed to low idle speed.
• The engine will automatically return to high idle
speed when there is welding load or AC power
RANGER 305D (CE)