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TO USE THE SA-250 FOR DC WIRE FEED
WELDING (CONSTANT VOLTAGE WITH
WIRE FEED MODULE):
1. Connect the LN-25 or LN-7 Wire Feeder. Follow
the installation instructions provided with the wire
feeder.
2. Set the machine for CV operation.
3. Start the diesel 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.
OPERATION
B-11 B-11
SA-250
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TABLE B.1
RANGE SETTINGS FOR WIRE SIZE/SPEED
Diameter (inches) Wire Speed Range Appropriate Current Range
(inches/minute)
.035 80-110 75 to 120 Amps
.045 70-130 120 to 170 Amps
.068 40-90 125 to 210 Amps