Miller Electric XR W Gun Controls, Shielding Gas, Coolant Supply For Water-Cooled Models Only

5-12. Gun Controls

1 Gun 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.

1

2

Ref. 151 666-E

5-13. Shielding Gas

2

1

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 5-12).

3	Close valve on cylinder when
	finished welding.

sb5.1 6/92 − S-0621-C / Ref. 151 666-E

5-14. Coolant Supply For Water-Cooled Models Only

	1	Coolant Supply
	See	Section 4-16for coolant
1	guidelines.
	Turn On coolant supply before
	welding.
	Turn Off coolant supply when
	finished welding.

Ref. 150 755-A

5-15. Sequence Of Gas Metal Arc Welding (GMAW) − Continuous Or Spot

Install &	Put On		Turn On Gas	Turn On Feeder	Begin Welding
Connect	Personal Safety	Set Controls	And Water (If	And Welding
Equipment	Equipment		Applicable)	Power Source
					ssb6.1* 9/92

OM-1581 Page 28