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OM-227 398 Page 14
5-3. Shielding Gas
Ref. 151 666-F / 804 545-B
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
5-1).
Close valve on cylinder when
finished welding.
3
1
2
5-4. Coolant Supply For Water-Cooled Models Only
Ref. 150 755-A
1 Coolant Supply
2 Coolant “In”
3 Coolant “Out”
See table below for coolant
guidelines.
Turn On coolant supply before
welding.
Turn Off coolant supply when
finished welding.
1
MILLER Low
Conductivity Coolant
No. 043 810**
MILLER Aluminum Protecting
Coolant No. 043 809**;
Distilled Or Deionized Water OK
Above 32° F (0° C)
GTAW Or Where
HF* Is Used
GMAW Or Where Coolant
Contacts Aluminum Parts Or
Where HF* Not Used
Application
*HF: High Frequency Current
**MILLER coolants protect to -37° F (-38°C) and resist algae growth.
Coolant
3
2