D-2

MAINTENANCE

D-2

 

 

 

Replace brushes when they wear within 1/4” of the pigtail. A complete set of replacement brushes should be kept on hand. Lincoln brushes have a curved face to fit the commutator. Have an experienced mainte- nance man seat these brushes by lightly stoning the commutator as the armature rotates at full speed until contact is made across the full face of the brushes. After stoning, blow out the dust with low pressure air.

To seat slip ring brushes, position the brushes in place. Then slide one end of a piece of fine sandpaper between slip rings and brushes with the coarse side against the brushes. With slight additional finger pres- sure on top of the brushes, pull the sandpaper around the circumference of the rings - in direction of rotation only - until brushes seat properly. In addition, stone slip ring with a fine stone. Brushes must be seated 100%.

Arcing or excessive exciter brush wear indicates a possible misaligned shaft. Have an authorized Field Service Shop check and realign the shaft.

IDLER MAINTENANCE

CAuTION

before doing electrical work on the idler printed circuit board, disconnect the battery.

------------------------------------------------------------------------

When installing a new battery or using a jumper bat- tery to start the engine, be sure the battery polarity is connected properly. The correct polarity is negative ground. Damage to the engine alternator and the printed circuit board can result from incorrect connec- tion.

1.Proper operation of the idler requires good ground- ing of the printed circuit board, reed switch, and battery.

2.Idler solenoid is activated for low idle.

3.If desired, the welder can be used without automat- ic idling by setting the “Idler” switch to the “High” position.

NAMEPLATES

Whenever routine maintenance is performed on this machine - or at least yearly - inspect all nameplates and labels for legibility. Replace those which are no longer clear. Refer to the parts list for the replace- ment item number.

PuRGING AIR FROM FuEL SYSTEM (PERKINS 404D-22 ENGINE)

WARNING

Keep fuel clear of open flames or arcs, allow engine to cool before working on the fuel system. Wipe up any spilled fuel and do not start engine until fumes clear.

------------------------------------------------------------------------

If the engine is running rough and you suspect air has been trapped in the fuel system, (e.g. the engine was allowed to run out of fuel) perform the following steps using qualified personnel:

1.Loosen by two or three turns, the vent screw (Figure D.1) on the fuel inlet connection.

Vent Screw

Priming

Lever

FIGuRE D.1

2.Operate the electric fuel pump by turning the “Ignition” switch “ON” until fuel, free of air, flows from the vent point. Tighten the vent screw.

3.Contact your Perkins Engine repair facility if prob- lems persist.

CLASSIC® 300D PERKINS

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Lincoln Electric 11572 manual PuRGING AIR from FuEL System Perkins 404D-22 Engine, Vent Screw Priming Lever
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11572 specifications

Lincoln Electric 11572 is a high-performance welding machine that has garnered attention in the industry for its reliability and innovative technologies. Primarily designed for MIG welding, this unit stands out due to its combination of portability, ease of use, and superior welding capabilities. It caters to both professional welders and DIY enthusiasts, making it a versatile option for a variety of welding tasks.

One of the key features of the Lincoln Electric 11572 is its compact design. Weighing in at just over 30 pounds, it is lightweight enough for easy transportation, allowing users to take it to job sites or different workshop locations without hassle. Despite its portable nature, it does not compromise on performance, providing a robust output that is capable of handling a range of materials, including mild steel, stainless steel, and aluminum.

The machine is equipped with a variable voltage control, which allows users to adjust the output to suit different welding thicknesses and types. This flexibility aids in achieving optimal welds, ensuring a good balance between penetration and bead aesthetics. Furthermore, the Lincoln Electric 11572 features a built-in contactor safety switch which enhances user safety by preventing wire feeding when the torch trigger is not activated.

Technology plays a vital role in the Lincoln Electric 11572’s performance. The unit utilizes the company's proprietary welding technology, which ensures a stable arc and reduces spatter for cleaner welds. The efficient wire feed system works seamlessly to maintain a smooth and consistent feed, reducing the risk of jams and enhancing overall productivity.

Additionally, the machine comes equipped with a user-friendly interface, including easy-to-read settings and controls. This makes it accessible for welders of all skill levels, from beginners to experienced professionals. The welder's versatility is further amplified by its ability to handle gas or gasless welding, depending on the user's preference and project requirements.

In conclusion, the Lincoln Electric 11572 is a dependable solid MIG welder that offers a blend of portability, safety, and advanced welding technology. Its robust features and user-centric design make it an excellent choice for a wide range of applications, enabling users to achieve high-quality results with ease. Whether for industrial use or personal projects, this welding machine promises to deliver performance that meets and exceeds expectations.
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