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OM-1594 Page 29
5-3. Gun Controls
1 Trigger
Press trigger to energize welding
power source contactor (if
applicable), start shielding gas flow,
and begin wire feed.
Switches inside the wire feeder can
be set to provide timed shielding
gas preflow and postflow when
trigger is pressed and released
(see Section 4-16). When this fea-
ture is turned Off, no preflow or
postflow is provided for the welding
operation.
2 Wire Speed Control
Use control to fine adjust wire feed
speed set on wire feeder Weld
Speed control. The numbers
around the control are for reference
only.
1
2
1
2
Ref. 151 666-A
5-4. Shielding Gas
sb5.1 6/92 – S-0621-C / Ref. 151 666-A
1 Shielding Gas Cylinder
2 Valve
3 Gun Trigger
Open valve on cylinder just before
welding.
Gun trigger turns weld output and
gas flow on and off (see Section
5-3).
Close valve on cylinder when
finished welding.
3
1
2
3
5-5. Coolant Supply For Water-Cooled Models Only
Ref. 150 755-A
1 Coolant Supply
See Section 4-4 for coolant
guidelines.
Turn On coolant supply before
welding.
Turn Off coolant supply when
finished welding.
1