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OM-1581 Page 28
4-12. Gun Controls
1 Trigger
Press trigger to energize welding
power source contactor (if applica-
ble), start shielding gas flow, and
begin wire feed.
For shielding gas preflow and post-
flow, partially press trigger before
and partially release after welding.
2 Wire Speed Control
Use control to adjust wire feed
speed. The numbers around the
control are for reference only.
Ref. 802 536
1
2
4-13. Shielding Gas
3
1 Shielding Gas Cylinder
2 Valve
3 Gun Trigger
Open valve on cylinder just before
welding.
Gun trigger turns weld output and
gas flows on and off (see Section
4-12).
Close valve on cylinder when
finished welding.
sb5.1 6/92 – S-0621-C / Ref. 802 536
1
2
4-14. Coolant Supply For Water-Cooled Models Only
1 Coolant Supply
See Section 3-17 for coolant
guidelines.
Turn On coolant supply before
welding.
Turn Off coolant supply when
finished welding.
Ref. 150 755-A
1
4-15. Sequence Of Gas Metal Arc Welding (GMAW) – Continuous Or Spot
Begin Welding
ssb6.1* 9/92
Install &
Connect
Equipment
Put On
Personal Safety
Equipment
Set Controls
Turn On Gas
And Water (If
Applicable)
Turn On Feeder
And Welding
Power Source