Lincoln Electric MAGNUM 300FM - Manual (Page 12)

MAGNUM® FAST-MATE™
REMOVAL, INSTALLATION AND
TRIMMING INSTRUCTIONS FOR
MAGNUM® LINERS FEEDING STEEL
WIRE
(KP1933, KP1936 and KP1955 series 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 anoth-
er gun, unless it can meet the liner cut off length
requirement. Liners are shipped with the jacket of the
liner extended the proper amount.
a. Lay the gun and cable straight on a flat surface.
b. Remove and save the gas nozzle and nozzle insu-
lator. Make sure that the set screw in the gas dif-
fuser is backed out so as not to damage the liner.
Use the 5/64” (2.0 mm) Allen wrench provided.
Remove and save the gas diffuser from the end of
the gun tube assembly. Remove and save the liner
nut from connector end.
c. Remove old liner and 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. Before installing the gas diffuser, fully seat the liner
bushing in the connector end and install the liner nut
and finger tighten.
e. Be sure the cable is straight and then trim the liner
to the length shown in Figure E.1 (a gauge is includ-
ed on the wrench provided with the connection kit
for gauging the cut-off length. Remove any burrs
from the end of the liner.
f. Screw the gas diffuser onto the end of the gun tube
and tighten with the wrench provided.
g. Tighten the set screw in the side of the gas diffuser
against the cable liner using the Allen wrench pro-
vided.
This screw should only be gently tightened.
Overtightening will split or collapse the liner and
cause poor wire feeding.
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h. Replace the nozzle insulator and gas nozzle.
CAUTION
LINER ASSEMBLY (LINER BUSHING-
TO BE TIGHTLY SEATED)
LINER NUT
GAS DIFFUSER
NOZZLE INSULATOR
GAS NOZZLE
LINER TRIM-
LENGTH-
9/16" (14.3 mm)
Figure E.1
INSTALLATION AND TRIMMING
INSTRUCTIONS FOR MAGNUM® LINERS
FEEDING ALUMINUM WIRE
(KP1958 series liners)
1. Lay the gun out straight on a flat surface and
remove the gas nozzle and nozzle insulator.
A. Remove the liner nut from the connector end of
the cable.
B. 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.
3. Mark the liner 3/16" (5 mm) from the end of the liner
guide. 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.
A. Replace the liner nut and finger tighten.
5. For guns with a diffuser set screw, tighten the set
screw in the side of the gas diffuser against the
cable liner using the Allen wrench provided.
MAINTENANCE D-1 D-1