Welding Process - Lincoln Electric RANGER 3PHASE SVM207-A Service Manual

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WELDING PROCESS

For any electrodes the procedures should be kept with-
in the rating of the machine. For electrode information
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 "OUT-
PUT" 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
ELECTRODE SIZE
3/32
90 MAX.
125 MAX. 1/8
210(DC)/225(AC) 5/32
MAX.
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 processes.
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:
SETTINGS FOR PURE TUNGSTEN
TUNGSTEN RANGE SWITCH
DIAMETER (in.) SETTINGS
1/8 90 or 145
3/32 90 or 145
1/16 90
OPERATION
TUNGSTEN
DIAMETER (in.)
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
the RANGER 3 PHASE is NR
sizes and welding ranges that can be used with the
RANGER ® 3 PHASE are shown in the following table:
CURRENT RANGE
50 TO 90 AMPS
70 TO 145 AMPS
120 TO 210(DC),
The RANGER® 3 PHASE is recommended for limited
225(AC) AMPS
"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
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:
APPROXIMATE
CURRENT RANGE
CARBON DIAMETER (in)
80 - 150 Amps
45 - 130 Amps
40 - 80 Amps
RANGER® 3 PHASE
SETTINGS FOR 1% THORIATED TUNGSTEN
RANGE SWITCH
SETTINGS
1/8 90, 145, or 210
3/32 90 or 145
1/16 90 or 145
®
electrode recommended for use with
Diameter Wire Speed
(in.) Range In./Min.
.035 80 - 110
.045 70 - 130
.068 40 - 90
Diameter Wire Speed
(in.) Range In./Min.
.030 80 - 110
.035 70 - 130
CURRENT RANGE (DC, electrode positive)
1/8
5/32
3/16
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APPROXIMATE
CURRENT RANGE
80 - 225 Amps
50 - 180 Amps
45 - 120 Amps
®
-212-MP. The electrode
Approximate
Current Range
75A to 120A
120A to 170A
125A to 210A
).
2
Approximate
Current Range
75A to 120A
120A to 170A
30 - 60 Amps
90 - 150 Amps
200 - 250 Amps