Connecting Spool Gun To Millermatic 140/180 - Miller Electric Millermatic 140 Auto−Set Owner's Manual

4-14. Connecting Spool Gun To Millermatic 140/180

.
Be sure that gun end is tight against drive assembly.
Incorrect
Gun Not Seated
.
A complete Parts List is available on-line at www.MillerWelds.com
6
1 3
4
Exposed O-rings
will cause shielding
gas leakage.
7
5
4 2
4
Correct
Gun Fully Seated
1 Drive Assembly
2 Spool Gun
3 Gun Securing Knob
4 Gun End
Loosen thumbscrew. Insert end
through opening until it bottoms
against drive assembly. Tighten
gun securing knob.
Spool gun must be inserted
completely to prevent leakage of
shielding gas.
5 Gun Trigger Plug
Insert plug into receptacle, and
tighten threaded collar.
6 Spool Gun/MIG Gun Switch
Place switch in Spool Gun position.
7 Polarity Changeover Terminal
Block
To make proper polarity connection,
see welding power source Owner's
Manual.
Close door.
804 984-A / Ref. 801 987
OM-225 311 Page 21