Lincoln Electric CLASSIC III SVM 137-A Service Manual page 26

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TO USE THE CLASSIC III OR CLASSIC
IIID FOR DC WIRE FEED WELDING
(CONSTANT VOLTAGE WITH WIRE FEED
MODULE):
1. Connect the LN-25, LN-23P, or LN-7 Wire Feeder.
Follow the installation instructions provided with
the wire feeder.
2. Set the machine for CV operation.
3. Start the engine. See Engine Operation in this
section of the manual.
4. Set the Idler Switch to "AUTO."
5. Set the CURRENT RANGE SELECTOR to a set-
ting appropriate for your wire size and wire feed
speed. See Table B.1 for recommended settings.
6. Set the VOLTAGE ADJUSTMENT to the setting
that gives the best arc characteristics for the range
selected.
7. Pull the gun trigger and begin welding.
Diameter (inches)
.035
.045
.068
OPERATION
TABLE B.1
RANGE SETTINGS FOR WIRE SIZE/SPEED
Wire Speed Range
(inches/minute)
80-110
70-130
40-90
Classic III and IIID
Appropriate Current Range
80 to 130 Amps
120 to 190 Amps
150 to 240 Amps
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