Lincoln Electric IM831 RANGER 3 PHASE - Manual (Page 19)

B-3 OPERATION B-3
WELDING PROCESS
For any electrodes the procedures should be kept
within the rating of the machine. For electrode infor-
mation see the appropriate Lincoln publication.
STICK (CONSTANT CURRENT) WELDING
Connect welding cables to the "TO WORK ” and
"ELECTRODE ” studs. Start the engine. Set the
"Polarity ” switch to the desired polarity. The “ RANGE ”
switch markings indicate the maximum current for that
range as well as the typical electrode size for that
range. The
“ OUTPUT ” Control provides fine adjust-
ment of the welding current within the select range.
For maximum output within a selected range set the
“ OUTPUT ” Control at 10. For minimum output within a
selected range set the “ OUTPUT ” Control at 5. ( “ OUT-
PUT ” Control settings below 5 may reduce arc stabili-
ty) For best overall welding performance set the
“ RANGE ” Switch to the lowest setting and the OUT-
PUT ” Control near the maximum to achieve the
desired welding current.
RANGE SETTING TYPICAL CURRENT RANGE
ELECTRODE SIZE
The RANGER 3 PHASE can be used with a broad
range of AC and DC stick electrodes. See
“ Welding
Tips 1 ” included with the RANGER 3 PHASE for elec-
trodes within the rating of this unit and recommended
welding currents of each.
TIG (CONSTANT CURRENT) WELDING
The K930-[ ] TIG Module installed on a RANGER 3
PHASE provides high frequency and shielding gas
control for AC and DC GTAW (TIG) welding process-
es. The TIG Module allows full range output control.
After flow time is adjustable from 0 to 55 seconds.
When using the RANGER 3 PHASE for AC TIG weld-
ing of aluminum, the following settings and electrodes
are recommended:
The K930-[ ] TIG Module should be used with the
RANGER 3 PHASE on high idle to maintain satisfac-
tory operation. It can be used in the AUTO position
but the delay going to flow idle after welding is ceased
will be increased if the AFTER FLOW CONTROL is
set above 10 seconds.
WIRE FEED WELDING PROCESSES
(CONSTANT VOLTAGE)
The Innershield
® electrode recommended for use with
the RANGER 3 PHASE is NR ® -212-MP. The elec-
trode sizes and welding ranges that can be used with
the RANGER 3 PHASE are shown in the following
table:
The RANGER 3 PHASE is recommended for limited
“ MIG ” welding (GMAW - gas metal arc welding). The
recommended electrodes are.030 ” and .035 ” SuperArc
L-50 and L-56. They must be used with a blended
shielding gas such as C25 (75% Argon - 25% CO
2
).
The welding ranges that can be used with the
RANGER 3 PHASE are shown in the following table:
ARC GOUGING
The RANGER 3 PHASE can be used for limited arc
gouging.
Set the Range switch to adjust output current to the
desired level for the gouging electrode being used
according to the ratings in the following table:
RANGER 3 PHASE
Diameter Wire Speed Approximate
(in.) Range In./Min. Current Range
.035 80 - 110 75A to 120A
.045 70 - 130 120A to 170A
.068 40 - 90 125A to 210A
Diameter Wire Speed Approximate
(in.) Range In./Min. Current Range
.030 80 - 110 75A to 120A
.035 70 - 130 120A to 170A
SETTINGS FOR PURE TUNGSTEN
TUNGSTEN RANGE SWITCH APPROXIMATE
DIAMETER (in.) SETTINGS CURRENT RANGE
1/8 90 or 145 80 - 150 Amps
3/32 90 or 145 45 - 130 Amps
1/16 90
40 - 80 Amps
SETTINGS FOR 1% THORIATED TUNGSTEN
TUNGSTEN RANGE SWITCH APPROXIMATE
DIAMETER (in.) SETTINGS CURRENT RANGE
1/8 90, 145, or 210 80 - 225 Amps
3/32 90 or 145 50 - 180 Amps
1/16 90 or 145 45 - 120 Amps
CARBON DIAMETER (in) CURRENT RANGE (DC, electrode positive)
1/8 30 - 60 Amps
5/32 90 - 150 Amps
3/16 150 - 250 Amps
90 MAX.
125 MAX.
210(DC)/225(AC)
MAX.
3/32
1/8
5/32
50 TO 90 AMPS
70 TO 145 AMPS
120 TO 210(DC),
225(AC) AMPS