D-2

MAINTENANCE

D-2

 

 

 

CAUTION

This screw should only be gently tightened. Overtightening will split or collapse the liner and cause poor wire feeding.

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6. Replace the nozzle insulator and gas nozzle.

GUN TUBES AND NOZZLES

a.Replace worn contact tips as required.

b.Remove spatter from inside of gas nozzle and from tip after each 10 minutes of arc time or as required.

c.To remove gun tube from gun, loosen socket-head clamping screw in handle with 3/16” (4.8 mm) Allen wrench. Remove gas nozzle and nozzle insulator and also loosen small set screw in the diffuser using 5/64” (2.0 mm) Allen wrench.

NOTE: Small set screw in the diffuser must be loosened, otherwise liner could be damaged when attempting to remove gun tube.

Pull gun tube out from gun handle. To reinstall, insert the gun tube, push in as far as possible and retighten screws.

GUN CABLES

CABLE CLEANING

Clean cable liner after using approximately 300 pounds (136 kg) of electrode. Remove the cable from the wire feeder and lay it out straight on the floor. Remove the contact tip from the gun. Using an air hose and only partial pressure, gently blow out the cable liner from the gas diffuser end.

CAUTION

Excessive pressure at the start may cause the dirt to form a plug.

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Flex the cable over its entire length and again blow out the cable. Repeat this procedure until no further dirt comes out.

CABLE REPAIR FOR K575 & K1723

MODELS

Magnum® 400 Dual Procedure guns and cables fea- ture the use of repairable cable connectors. If the cable ever gets severely damaged, it may be cut shorter and repaired by the user.

GUN TUBE END CABLE REPAIR FOR K575 AND K1723 (Requires 4 #S8053-169 Terminals for K575 or 2 #S19492-2 terminals for K1723)

a)Remove the cable liner per previous instructions.

b)Remove the gun tube per previous instructions.

c)Remove the #6 screws from the gun handle, sepa- rate the two halves, and remove the cable from the handle along with the trigger assembly for the K575 guns. Before removing the trigger assembly, carefully note trigger lead wiring as it will be impor- tant to reconnect these properly. For the K1723 also remove the rocker switch.

MAGNUM® 400 FM DUAL PROCEDURE GUNS

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Lincoln Electric IM647-A manual GUN Tubes and Nozzles, GUN Cables
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IM647-A specifications

The Lincoln Electric IM647-A is a notable welding machine that epitomizes precision, performance, and innovation in the welding industry. Designed for professionals and industries requiring high-quality welding solutions, this machine combines advanced technology with user-friendly features to enhance productivity and output quality.

One of the key features of the IM647-A is its multi-process capabilities. It accommodates MIG, TIG, Stick, and flux-cored welding, providing versatility for various applications and materials. This flexibility makes it an ideal choice for fabricators, maintenance facilities, and production shops needing a reliable machine for diverse welding tasks.

The IM647-A is equipped with Lincoln Electric’s advanced inverter technology which allows for a more compact design without sacrificing power. This technology provides a high-duty cycle, ensuring the machine can handle extended periods of use. The inverter system also contributes to better arc stability and control, resulting in cleaner welds and reduced spatter.

Another notable characteristic is the machine's intuitive interface. The user-friendly controls enable welders to quickly set parameters and make adjustments based on their needs. The digital display offers clear readouts of voltage and amperage, allowing welders to monitor their performance effectively. This ease of use is essential for both seasoned professionals and beginners.

Safety features are incorporated into the design of the IM647-A, including thermal overload protection and a robust housing that ensures durability while protecting internal components. These features are crucial for maintaining the integrity of the machine even in demanding work environments.

Additionally, the Lincoln Electric IM647-A is compatible with Lincoln’s extensive range of welding accessories and equipment, further enhancing its functionality. With its compact design, the machine is also lightweight, making it easy to transport between job sites without compromising on capability.

Overall, with its multi-process versatility, advanced inverter technology, user-friendly interface, and robust safety features, the Lincoln Electric IM647-A stands out as a superior choice for professionals seeking efficiency and reliability in their welding operations. It continues to set a benchmark in the welding industry, combining quality and innovation to meet the evolving needs of welders.
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