Table of Contents
Advertisement
D-1
REMOVAL, INSTALLATION AND TRIMMING
INSTRUCTIONS FOR MAGNUM® LINERS
NOTE: The variation in cable lengths prevents 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 cut off length require-
ment. Liners are shipped with the jacket of the liner
extended the proper amount.
a. Remove the gas nozzle and nozzle insulator.
Loosen the set screw located in the side of the dif-
fuser with 5/64 (2.0 mm) Allen wrench (provided
with the gun or connector kit).
Note: Set screw is not found on K2951, K2952 and
K3055.
b. Remove the gas diffuser from gun.
c. Lay gun and cable out straight on a flat surface. For
all K466 except K466-3 and K466-4 Connections:
Loosen set screw located in the brass cable con-
nector at the wire feeder end of the cable using the
same 5/64 (2.0 mm) Allen wrench. Pull liner out of
cable. (REFER TO FIGURE 1 IN INSTALLATION
FOR EACH)
<OR>
For K466-3 and K466-4 CONNECTIONS:
Remove the connector cap with the wrench provid-
ed. Pull liner out of cable. If the liner is going to be
replaced with a different size liner, loosen set screw
on the connector cap and remove piece of liner
material.
d. For installation and trimming instructions for MAG-
NUM® liners see "LINER INSTALLATION" in
INSTALLATION section.
GUN TUBES AND NOzzLES
a. Replace worn contact tips as required.
b. Remove spatter from inside of gas nozzle and from
tip after each 10 minutes of arc time or as required.
c. To remove gun tube from gun, loosen socket-head
clamping screw in handle with 3/16" (4.8 mm) Allen
wrench. Remove gas nozzle and nozzle insulator
and also loosen small set screw in the diffuser using
5/64" (2.0 mm) Allen wrench.
Note: Set screw is not found on K2951, K2952 and
K3055.
MAINTENANCE
MAGNUM® & MAGNUM® PRO CURVE GUNS
NOTE: Small set screw in the diffuser must be loos-
ened, otherwise liner could be damaged when
attempting to remove gun tube. Pull gun tube out
from gun handle. To reinstall, insert the gun tube,
push in as far as possible and retighten screws.
GUN CABLES
CABLE CLEANING
Clean cable liner after using approximately 300
pounds (136 kg) of electrode. Remove the cable from
the wire feeder and lay it out straight on the floor.
Remove the contact tip from the gun. Using an air hose
and only partial pressure, gently blow out the cable
liner from the gas diffuser end.
CAUTION
Excessive pressure at the start may cause the dirt
to form a plug.
------------------------------------------------------------------------
Flex the cable over its entire length and again blow out
the cable. Repeat this procedure until no further dirt
comes out.
CABLE REPAIR (ALL K470, K471, K541
K2951, K2952 AND K3055 MODELS)
The MAGNUM® & MAGNUM® PRO CURVE 300 and
400 guns feature the use of repairable cable connec-
tors. If the cable ever gets severely damaged. it may
be cut shorter and repaired by the user. Repair cables
as follows:
GUN TUBE END REPAIR (Requires 2 S19492-2
Terminals)
a. Remove the cable liner per Removal, Installation
and Trimming Instructions.
b. Remove the gun tube per Gun Tubes and Nozzles
Section.
c. Remove three #6 screws from the gun handle, sep-
arate the two halves, and remove the cable from the
handle along with the trigger assembly.
d. Remove gun tube connector from cable by
unscrewing connector nut from gun tube connector.
If the cable inner tube is difficult to remove from the
connector assembly, carefully slit it lengthwise with
a knife up to the brass connector.
e. Uncouple the strain relief by pushing its outer hous-
ing toward the middle of the cable. Move the strain
relief and the cable boot toward the middle of the
cable, past the damaged section.
D-1
Advertisement
Table of Contents
