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Installation of (KP44 and KP44N series liners)
a. Lay the gun and cable straight on a flat surface.
b. Make sure that the set screw in the connector end
is backed out so as not to damage liner or liner
bushing. Remove and save the gas nozzle, nozzle
insulator, and gas diffuser from the end of the gun
tube assembly.
c. Insert a new untrimmed liner into the connector end
of the cable. Be sure the liner bushing is stenciled
appropriately for the wire size being used.
d. "#(@C=:?6CD$"2?5$"
Before fully seating the liner bushing, it will be nec-
essary to trim the liner’s inner tube flush with the
liner bushing using a sharp blade. After trimming,
remove any burrs from inner tube and insure that
the opening is fully open.
For all K466 connector kits except K466-3 and
K466-4, tighten the set screw in the cable connec-
tor.
or
For K466-3 and K466-4, screw in the connector cap
provided in the kit until it seats on the face of the
bushing. Then insert the appropriate piece of liner
material into the connector cap and tighten the set
screw. Three pieces of liner material are included in
these connector kits to help guide the electrode
through the connector cap. The piece with the
smallest inner diameter is designed for .045” (1.2
mm) maximum diameter electrode. The next largest
diameter is for 1/16” (1.6 mm) maximum diameter
electrode. The largest diameter piece of liner mate-
rial is for 5/64” (2.0 mm) maximum diameter elec-
trode.
e. Be sure the cable is straight and then trim the liner
to the length shown in Figure B.1 (a gauge is includ-
ed on the wrench provided with the connection kit
for gauging the cut-off length on 250, 350, 450 and
550 amp gun tubes). Remove any burrs from the
end of the liner.
f. Replace the Insulator 250, 350, 450 and 550.
g. Screw the gas diffuser onto the end of the gun tube
and tighten.
h. Replace the nozzle insulator and gas nozzle.
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1. Lay the gun out straight on a flat surface and
remove the gas nozzle.
A. For all K466 except K466-3 and K466-4 connec-
tions, back out the set screw in the connector end
with a 5/64 (2.0 mm) Allen wrench.
B. For all K466-3 and K466-4 connections: Remove
the connector cap.
C. Back out the set screw in the diffuser for guns
that have a set screw in the diffuser.
2. Remove the liner and insert a new untrimmed liner
into the connector end of the cable. Check that the
coils of the spring liner can be seen through the
holes in the gas diffuser.
A. For all K466-3 and K466-4 connections: If the
liner is going to be replaced with a different size
liner, loosen the set screw on the connector cap
and replace the liner material with the correct
size.
3. Mark the liner 3/16" (5 mm) from the end of the liner
guide or connector. Pull the liner partially out and
cut off the liner at the mark using a sharp knife.
4. Screw the brass liner nipple onto the liner and fully
seat the liner busing into the liner guide or the con-
nector.
A. For connector kits, except K466-3 and K466-4,
tighten the set screw in the cable connector.
B. For K466-3 and K466-4, screw in the connector
cap.
5. Replace the Insulator.
6. Screw the gas diffuser onto the end of the gun tube
and tighten.
7. Replace the nozzle insulator and gas nozzle.
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