MAINTENANCE
Flex the cable over its entire length and again blow
out the cable. Repeat this procedure until no further
dirt comes out. If this has been done and feed prob-
lems are experienced, try liner replacement, and refer
to trouble shooting section on rough wire feeding.
LINER REMOVAL AND REPLACE-
MENT
NOTE: Changing the liner for a different wire size
requires replacement of the gas diffuser per Table D.1
to properly secure the different liner.
LINER
REMOVAL,
INSTALLATION
AND TRIMMING INSTRUCTIONS FOR
MAGNUM 250L
NOTE: The variation in cable lengths prevents the
interchangeability of liners between guns. 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. Liners are shipped with the
jacket of the liner extended the proper amount.
1.
Remove the gas nozzle and nozzle insulator, if
used, to locate the set screw in the gas diffuser
which is used to hold the old liner in place.
Loosen the set screw with a 5/64" (2.0 mm) Allen
wrench.
2.
Remove the gas diffuser from the gun tube.
3.
Lay the gun and cable out straight on a flat sur-
face. Loosen the set screw located in the brass
connector at the feeder end of the cable and pull
the liner out of the cable.
No. de Parte
No. de Parte del
del Difusor de
Número de
Tamaño Grabado
Difusor de Gas
Gas de la
Diámetro de
Parte de la
en el extremo del
de la Tobera Fija
Tobera ajustable
Electrodos Utilizados
Guía
CilindrodelaGuía
(grabado)
(grabado)
.025-.030" Steel
KP1934-2
.030 (0.8 mm)
KP2026-3
KP2026-2
(0.6-0.8 mm)
.035-.045" Steel
KP1934-1
.045 (1.2 mm)
KP2026-3
KP2026-1B1
(0.9-1.2 mm)
3/64" Aluminum
KP1955-1
3/64" (1.2 mm)
KP2026-3
KP2026-1B1
(1.2 mm)
TABLE D.1
Diameter of
Electrode Used
Replace
ment
Line
Part
Number
Size
Stencilled on
End of liner
Bushing
Fixed Nozzle
Gas Diffuser
Part No. (and
stencil)
Adjustable
nozzle Gas
Diffuser
Part No.
(and
Stencil)