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Read this entire installation section before you
start installation.
SAFETY PRECAUTIONS
WARNING
ELECTRIC SHOCK can kill.
• Do not touch electrically live parts
such as output terminals or
nal wiring.
• Insulate yourself from the work and
ground.
• Always wear dry insulating gloves.
------------------------------------------------------------------------
Only qualified personnel should install, use or
service this equipment.
The K575 and K1723 Magnum® FM guns are factory
installed with a Fast-Mate (European style) wire feed-
er connector for "all-in-one" GMAW feeder connection.
A single connector attaches welding current, wire
liner, shielding gas, and trigger control leads to the
feeder. An optional K489-7 Magnum® Fast-Mate
Adapter is available for use with Lincoln -10 Series
wire feeders. An optional K573-1 Magnum® Fast-
Mate Adapter is available for use with the LN-9
equipped with a dual procedure kit.
NOTE: These guns are shipped with a factory
installed liner. To change the liner in these models, or
to install special liners for use with aluminum wire see
the section on liner removal instructions in the
MAINTENANCE section.
CONTACT TIP AND GAS NOZZLE
INSTALLATION
a) Choose the correct size contact tip for the elec-
trode being used (wire size is stenciled on the side
of the contact tip) and screw it snugly into the gas
diffuser.
b) Be sure the nozzle insulator is fully screwed onto
the gun tube and does not block the gas holes in
the diffuser.
NOTE: Insulator is not required when using the
optional fixed gas nozzles.
c) Slip the appropriate gas nozzle onto the nozzle
insulator. Adjustable gas nozzles are available with
a .62" (15.9 mm) or .50" (12.7 mm) I.D., and in both
standard (flush) and recessed design, for the 300
and 400 amp guns. The proper nozzle should be
selected based on the welding application.
Different length fixed nozzles are also available to
fit 300 and 400 amp gun tubes to allow either spray
or short-circuiting transfer welding.
INSTALLATION
inter-
MAGNUM® 400 FM DUAL PROCEDURE GUNS
Choose the gas nozzle as appropriate for the
GMAW process to be used. Typically, the contact
tip end should be flush to .12" (3 mm) extended for
the short-circuiting transfer process and .12" (3
mm) recessed for spray transfer and for the
Outershield
®
(FCAW) process.
CONNECTION TO FAST-MATE
COMPATIBLE FEEDERS
FM model gun cable assemblies will connect easily to
any Lincoln feeder equipped with a European style
gun connector and which has dual procedure capabili-
ties. An optional K489-7 Magnum® Fast-Mate Adapter
is available for use with Lincoln -10 Series wire feed-
ers. An optional K573-1 Magnum® Fast-Mate Adapter
is available for use with the LN-9 equipped with a dual
procedure kit. The guns may also connect to any non
Lincoln wire feeder that has a 4 pin Euro connector
that is compatible with the Lincoln 4 pin Fast-Mate
connector.
1) Check that the feeder outgoing guide, as well as
the drive roll, are appropriate for the electrode size
being used. When using a Fast-Mate Adapter Kit,
be certain that the adapter guide tube is also prop-
erly sized.
2) Align and fully engage the brass connector end of
the gun cable into the mating connector on the out-
going side of the feeder wire drive. Secure the
cable connection by snugging the Fast-Mate con-
nector collar nut.
INSTALLATION OF THE K489-7 AND
K573-1 FAST-MATE™ ADAPTER
KITS
For K489-7 refer to M17806 installation instructions
that are sent with the kit.
For K573-1 refer to S19389 installation instructions
that are sent with the kit.
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