Tig Welding; Wire Welding-Cv; Arc Gouging; Auxiliary Power - Lincoln Electric RANGER 305 D Service Manual

RANGER 305D

TIG WELDING

The TOUCH START TIG setting of the MODE switch is for DC TIG
(Tungsten Inert Gas) welding. To initiate a weld, the OUTPUT control is
first set to the desired current and the tungsten is touched to the
work. During the time the tungsten is touching the work there is very
little voltage or current and, in general, no tungsten contamination.
Then the tungsten is gently lifted off the work in a rocking motion,
which establishes the arc.
The ARC CONTROL is not active in the TIG mode.
The Ranger 305D can be used in a wide variety of DC TIG welding
applications. In general the "Touch Start" feature allows contam-
ination-free starting without the use of a Hi-frequency unit. If desired,
the K930-2 TIG Module can be used with the Ranger 305D. See
Table B.2 for reference settings.
Ranger 305D settings when using the K930-2 TIG Module with an
Amptrol or Arc Start Switch:
a. Set the MODE Switch to the TOUCH START TIG setting.
b. Set the "IDLER" Switch to the "AUTO" position.
c. Set the "WELD TERMINALS" switch to the "REMOTELY
CONTROLLED" position. This will keep the solid state contactor
open and provide a "cold" electrode until the Amptrol or Arc Start
switch is pressed
When using the TIG Module, the OUTPUT control on the Ranger 305D
is used to set the maximum range of the CURRENT.

WIRE WELDING-CV

Connect a wire feeder to the RANGER 305 D according to the
instructions in INSTALLATION INSTRUCTIONS Section.
In the CV-WIRE mode, the Ranger 305D can be used with a broad
range of flux cored wire (Innershield and Outershield) electrodes and
solid wires for MIG welding (gas metal arc welding). Welding can be
finely tuned using the ARC CONTROL. Turning the ARC CONTROL
clockwise for -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 the dial set at 0.
Some recommended Innershield electrodes are: NR-311, NS-3M, NR-
203 Ni 1%, NR-204H. Recommended Outershield electrodes are :0S-
70, OS-71M.
Some recommended solid wires for MIG welding are: .035 (0.9mm),
and .045 (1.1mm), L-50 and L-56, .035 (0.9 mm) and .045 (1.1mm)
Blue Max MIG 308 LS.
For any electrodes, including those above, the procedure should be
kept within the rating of the machine.

ARC GOUGING

The RANGER 305D can be used for limited arc gouging. For optimal
performance, set the MODE switch to CC-STICK and the ARC
CONTROL to +10.
Set the OUTPUT CONTROL knob to adjust output current to the
desired level for the gouging electrode being used according to the
ratings in the following Table B.3
TABLE B.3 - CURRENT RANGE
PER ELECTRODE DIAMETER
Carbon Diameter Current Range (DC, electrode positive)
1/8"
5/32"
3/16"

AUXILIARY POWER

Be sure that any electrical equipment plugged into the generator AC
power receptacles can withstand +/- 10% voltage and a +/- 3%
frequency variation.
-----------------------------------------------------------------------
W RNING
Start the engine and set the IDLER control switch to the desired
operating mode. Full power is available regardless of the welding
control settings as long as no welding current is being drawn.
The auxiliary power of the Ranger 305D consists of two 20 amp-120
VAC (5-20R) duplex receptacles and one 50 amps 120/240 VAC (14-
50R) receptacle. The 240 VAC receptacle can be split for single-phase
120 VAC operation.
The auxiliary power capacity is 10,000 watts peak, 9,500 watts of
continuous 60 Hz, singe-phase power. The auxiliary power capacity
rating in watts is equivalent to volt-amperes at unity power factor.
The maximum permissible, 40 amps continuous current of the 240
VAC output is 42 amps maximum.
NOTE: Machines with code numbers of 11121 and higher are
equipped with GFCI duplex receptacles. If a GFCI receptacle is
"tripped", it will not reset unless it is receiving nearly full voltage
from the generator; for this reason, the engine must be running at
high RPM before resetting a GFCI.
B 8
OPERATION
75-140 Amps
90-150 Amps
200-250 Amps