Contact TIP and GAS Nozzle Installation

A-3	INSTALLATION	A-3

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 inter- nal wiring.

•Insulate yourself from the work and ground.

•Always wear dry insulating gloves.

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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.

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.

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.

MAGNUM® 400 FM DUAL PROCEDURE GUNS

IM647-A specifications

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