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D-4
MAINTENANCE
WELD-PAK 100
CHANGING LINER
NOTICE: The variation in cable lengths pre-
vents the interchangeability of liners. Once
a liner has been cut for a particular gun, it
should not be installed in another gun
unless it can meet the liner cutoff length
requirement. Refer to Figure D.2.
1. Remove the gas nozzle from the gun by
unscrewing counter-clockwise.
2. Remove the existing contact tip from the
gun by unscrewing counter-clockwise.
3. Remove the gas diffuser from the gun
tube by unscrewing counter-clockwise.
4. Lay the gun and cable out straight on a
flat surface. Loosen the set screw located
in the brass connector at the wire feeder
end of the cable. Pull the liner out of the
cable.
5. Insert a new untrimmed liner into the con-
nector end of the cable. Be sure the liner
bushing is stenciled appropriately for the
wire size being used.
6. Fully seat the liner bushing into the con-
nector. Tighten the set screw on the
brass cable connector. At this time, the
gas diffuser should not be installed onto
the end of the gun tube.
7. With the gas nozzle and diffuser removed
from the gun tube, be sure the cable is
straight, and then trim the liner to the
length shown in the Figure D.2. Remove
any burrs from the end of the liner.
8. Screw the gas diffuser onto the end of
the gun tube and securely tighten.
9. Replace the contact tip and nozzle.
1-1/4 (31.8 mm)
Liner Trim Length
Gas Diffuser
Gas Nozzle or
Gasless Nozzle
Set Screw Brass Cable
Connector
Liner Assembly
(Liner bushing to be sealed tight
against brass cable connector)
FIGURE D.2
Liner trim length