Lincoln Electric IM612 RANGER 8 + DIESEL - Manual (Page 22)

B-7 OPERATION B-7
RANGER 8+ DIESEL
WELDING PROCESS
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. Set the
“RANGE” switch to a setting that is equal to or slightly
greater than the desired welding current. (The
“RANGE” dial marking indicates the maximum current
for that range). Fine adjustment of the welding current
is made by adjusting the output “CONTROL” or
remote control. For best arc stability, use settings
5 through 10.
The RANGER 8+ DIESEL can be used with a broad
range of AC and DC stick electrodes. See “Welding
Tips 1” included with the machine for electrodes with-
in the rating of this unit and recommended welding
currents of each.
TIG (CONSTANT CURRENT) WELDING
The K930-2 TIG Module installed on a RANGER 8+
DIESEL provides high frequency and shielding gas
control for AC and DC GTAW (TIG) welding process-
es. The TIG Module allows full range output control.
Afterflow time is adjustable from 0 to 55 seconds.
When using the RANGER 8+ DIESEL for AC TIG
welding of aluminum, the following settings and elec-
trodes are recommended:
WIRE FEED WELDING PROCESSES
(CONSTANT VOLTAGE)
The only Innershield ® electrode recommended for use
with the RANGER 8+ DIESEL is NR
®
-211-MP. The
electrode sizes and welding ranges that can be used
with the RANGER 8+ DIESEL are shown in the follow-
ing table:
SETTINGS FOR PURE TUNGSTEN
TUNGSTEN RANGE SWITCH APPROXIMATE
DIAMETER (in.) SETTINGS CURRENT RANGE
1/8 70, 90, or 125 80 - 150 Amps
3/32 50, 70, or 90 45 - 130 Amps
1/16 50, or 70 40 - 80 Amps
SETTINGS FOR 1% THORIATED TUNGSTEN
TUNGSTEN RANGE SWITCH APPROXIMATE
DIAMETER (in.) SETTINGS CURRENT RANGE
1/8 70, 90, 125, or 175 80 - 225 Amps
3/32 50, 70, 90, or 125 50 - 180 Amps
1/16 50, 70, or 90 45 - 120 Amps
The K930-1 TIG Module should be used with the
RANGER 8+ DIESEL on high idle to maintain satisfac-
tory operation. It can be used in the AUTO position
but the delay going to low idle after welding is ceased
will be increased if the AFTERFLOW CONTROL is set
above 10 seconds
The RANGER 8+ DIESEL is recommended for limited
“MIG” welding (GMAW - gas metal arc welding). The
recommended electrodes are .030” and .035” L-50
and L-56. They must be used with a blended shield-
ing gas such as C25 (75% Argon - 25% CO
2
). The
welding ranges that can be used with the RANGER 8+
DIESEL are shown in the following table:
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