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OM-1581 Page 33
5-6. Changing Gun Contact Tip And Liner
Turn Off wire feeder and welding
power source.
Remove top cover and open pres-
sure roll assembly as shown in
Section 5-4.
1 Contact Tip Wrench
Insert wrench into nozzle over
contact tip.
2 Compression Nut
Loosen nut. Pull out contact tip.
3 Contact Tip
4 Nozzle
Pull wire out nozzle and liner should
slide out. If necessary, tilt nozzle
down to remove liner.
Close pressure roll assembly.
Reinstall top cover.
Install new liner and contact tip over
wire. Cut off wire at end of contact
tip.
Tighten nut just until contact tip is
secure. Overtightening nut will
damage adapter.
150 437
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4
Tools Needed:
5-7. Removing Contact Tip Adapter In Air-Cooled Models
Turn Off wire feeder and welding
power source.
1 Nozzle Extension
Remove as shown.
2 Contact Tip
3 Compression Nut
To remove, see Section 5-6.
4 Liner
5 Contact Tip Adapter
6 Washer
7 Extension Adapter
8 Setscrew
Loosen setscrew and remove
adapter. Install new adapter and
tighten setscrew. Reinstall liner,
contact tip, compression nut, and
nozzle.
150 430-B
Tools Needed:
5/64, 3/32 in
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