Ac/Dc Tig (Constant Current) Welding - Lincoln Electric RANGER 9 SVM 110-A Service Manual

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To Use the RANGER 9 for AC/DC TIG
(Constant Current) Welding:
1. Connect the K930-1 TIG Module to the RANGER
9. Follow the installation instructions provided
with the kit. Also be sure to follow the special
machine grounding instructions given in the man-
ual.
2. Refer to the instruction manual with the TIG mod-
ule (IM 528) for operation with a RANGER 9 and
proper machine settings.
3. Set the OUTPUT RANGE dial to the appropriate
setting for the electrode you are using. Refer to
IM -528 with the TIG module or refer to Table B.2
for AC TIG welding.
4. Set the POLARITY SWITCH to the desired polarity.
5. Do not AC TIG weld on the 250 AC range setting.
The output current may exceed the rating of the
RANGER 9.
6. Start the arc and begin welding.
NOTE: When using the RANGER 9 for AC TIG weld-
ing of aluminum, the TIG Module is to be set
for CONTINUOUS HF.
TABLE B.2 - AC TIG WELDING – TIG ELECTRODE/RANGE SETTINGS
Tungsten Diameter (inches)
1/8
3/32
1/16
Tungsten Diameter (inches)
1/8
3/32
1/16
RANGER 9
OPERATION
After you finish welding:
1. Stop the gasoline engine. See ENGINE OPERA-
TION in this section of the manual.
2. Allow the electrode and work to cool completely.
3. Remove the work clamp from the work.
Settings for Pure Tungsten
Range Switch Settings
90 or 120
45 or 90
45 or 90
Settings for 1% Thoriated Tungsten
Range Switch Settings
90, 120, or 180
45, 90, or 120
45 or 90
Appropriate Current Range
160 - 200 Amps
45 - 140 Amps
45 - 100 Amps
Appropriate Current Range
160 - 250 Amps
100 - 180 Amps
60 - 120 Amps
RANGER 9
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