Miller Electric XR W User Manual download pdf (Page 34)

OM-1581 Page 30

6-2. Changing Or Cleaning Gun Drive Roll

Turn Off wire feeder and welding

power source.

1 Top Cover

2 Pressure Roll Assembly

Cut off wire where it enters

pressure roll assembly area.

3 Setscrew

4 Current Pick-Up Tab

This tab helps prevent burnback

caused by welding arcs inside the

contact tip. This tab may be re-

moved to provide an insulated drive

roll. (If tab is removed, a smaller di-

ameter contact tip is recom-

mended. See options in Parts List.)

Lightly grease top of tab before rein-

stalling.

5 Drive Roll

Use wire brush to clean drive roll.

Install drive roll with desired groove

down, and turn drive roll so one

setscrew faces flat side of shaft.

6 Bearing

7 Liner

Line up drive roll groove with bear-

ing groove and liner opening.

Tighten setscrews.

If changing drive roll in feeder,

proceed to Section 6-3.

Thread welding wire through gun,

and adjust drive roll pressure, if

necessary (see Section 4-15).

Close and secure pressure roll

assembly. Reinstall top cover.

Ref. 151 599-F

Tools Needed:

5/64 in

2

67

1

5

3

4

1 ... 33 34 35 ... 60

Comments to this Manuals

No comments