Replacing Or Cleaning Gun Drive Roll Bearing In Pistol-Grip Guns; Replacing Head Tube Liner In Pistol-Grip Guns - Miller Electric XR Control Owner's Manual

7-7. Replacing Or Cleaning Gun Drive Roll Bearing In Pistol-Grip Guns

Tools Needed:

7-8. Replacing Head Tube Liner In Pistol-Grip Guns

4
Tool Needed:
5/32 in
OM-1594 Page 36
1
5
2
3
4
Turn Off wire feeder and welding
power source.
1
2
3
4
Remove as shown.
Use a wire brush to clean bearing.
Reinstall with washers, and tighten
screw.
Close pressure roll assembly.
Reinstall top cover.
4
2
3
.
The standard head tube liner will
accommodate wire diameters from
.030-1/16 wire size.
When changing wire size, change
control box drive roll and idler (see
Section 7-1), gun drive roll (see
Sections 7-2 and 7-6).
1
2
3
1
Loosen clamp screws and remove
clamp.
4
Remove head tube from gun.
5
Pull liner out of head tube.
Insert new liner into head tube and
reinstall head tube onto gun.
.
Top Cover
Pressure Roll Assembly
Screw
Pressure Roll
Ref. 151 599−F
Turn OFF coolant supply
before removing head tube on
water-cooled gun.
Cover
Screw
Clamp
Head Tube
Liner
A twisting motion may be need-
ed to feed liner thru head tube.
Ref. 803 917-A