Lincoln Electric IM620-B manual Accessories Optional Accessories, K430-2 GAS Solenoid KIT

C-2	ACCESSORIES	C-2
	OPTIONAL ACCESSORIES
	WARNING	WARNING

ELECTRIC SHOCK can kill.

•Do not operate with covers removed.

•Turn off power source before installing or servicing.

•Do not touch electrically hot parts.

•Turn the input power to the welding power source off at the fuse box before working in the terminal strip.

•Only qualified personnel should install, use or service this equipment.

K430-2 GAS SOLENOID KIT

(For Codes above 10500 only)

(Factory Installed on K446 and K449 Models)

The kit permits the LN-25 to be used for Gas Metal Arc Welding (GMAW) processes with a GMA gun cable.

The kit can be used with or without a Remote Output Control option installed in the LN-25 and provides flow of shielding gas:

1.With wire feed, when the gun trigger is closed.

2.Without wire feed, when the kit’s Purge button (located beneath the gas inlet fitting) is pressed.

NOTE: Always shut off the valve at the gas cylinder before making any gas connections to the LN-25.

User must provide a supply of shielding gas, a pres- sure regulator, a flow control valve and a hose from the flow valve to the gas inlet fitting of the LN-25. Install by connecting a supply hose from the gas flow valve outlet to the 5⁄8-18 female inert gas fitting on the back panel of the LN-25 case.

The LN-25 can be used with any shielding gas recommended in the electrode’s product literature at a maximum pressure of 60 psi (4.1 bar). This may include gases such as Argon, Helium, Nitrogen and blended gasses such as Ar-He, Ar-N2, Ar-O2, Ar- CO2, CO2, Ar-CO2-O2.

CYLINDER may explode if damaged.

• Keep cylinder upright and chained to support.

•Keep cylinder away from areas where it may be damaged.

•Never lift welder with cylinder attached.

•Never allow welding electrode to touch cylinder.

•Keep cylinder away from welding or other live elec- trical circuits.

•See American National Standard Z-49.1, “Safety in Welding and Cutting” published by the American Welding Society.

See GMA Gun Cable Gas Connection.

Installation instructions (M19154) are included with the kit.

K434-1 GAS FLOW TIMER KIT

(Requires either a K431-1 Remote Output Control Kit, K460-1 Pulse Power Adapter Kit, K624-1 42V Remote Output Control Kit, or internal contactor K443-1 installed in LN-25).

The K434-1 Gas Flow Timer Kit is used with the LN-25 Gas Solenoid when the LN-25 is equipped with any of the Remote Output Control Options or internal contactor.

T h i s k i t p r o v i d e s t h e f o l l o w i n g g a s f l o w timer functions:

1.Preflow Control - Provides flow of shielding gas to the work before the arc is established. The solenoid valve is energized immediately when the gun trigger is closed, but the time delay before the wire feeder and welding output are energized is adjustable between at least 0 to 1 second.

2.Postflow Control - Provides flow of shielding gas to the work after welding is stopped. Delay of the shut off of the solenoid valve after the gun trigger is released is adjustable between at least 0.5 to 5 seconds.

Installation instructions (M17590) are included with LN-25this kit.