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F-48

TROUBLESHOOTING AND REPAIR

F-48

 

FAN BLADE / MOTOR REMOVAL AND REPLACEMENT PROCEDURE

(continued)

FIGURE F.22 – FAN MOUNTING BOLTS

REAR

Fan

Blade

Fan

Motor

}

 

}

Fan

 

Mounting

 

Band

 

11/32"

 

Mounting

 

Nuts

5/16" Bolts

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PROCEDURE

1.Using a 3/8” nutdriver, remove the lower right side of the case wraparound cover.

2.Perform the Output Capacitors Removal and

Replacement Procedure.

3.Using a 5/16” nutdriver, remove the four fan mounting screws from the rear of the machine. See Figure F.22.

4.Using an open end 11/32” wrench, remove the two fan motor mounting nuts and lockwashers. See Figure F.22.

5.Using a flathead screwdriver, loosen the fan blade mounting band. See Figure F.22.

6.Pry the fan blade off of the mounting shaft.

NOTE: If fan blade cracks or breaks upon removal, replace it.

7.Carefully maneuver the fan motor and fan blade out of the right side of the machine.

8.Replace the fan motor and fan blade if neces- sary.

9.Tighten the fan blade mounting band.

10.Carefully maneuver the fan assembly into its original position.

11.Replace the two 11/32” fan motor mounting nuts and lockwashers.

12.Replace the four 5/16” fan assembly mounting screws in the rear of the machine.

NOTE: Make sure the fan blade is free to rotate when all of the mounting bolts are replaced.

13.Perform the Output Capacitors Removal and

Replacement Procedure.

14.Replace the lower right case cover.

Power MIG® 215XT

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Lincoln Electric 11521 service manual Rear

11521 specifications

The Lincoln Electric 11521 is a highly regarded choice among welders and metal fabricators, known for its reliability and efficiency. This portable MIG welder excels in delivering professional-grade results, making it suitable for both beginners and experienced welders. One of the standout features of the Lincoln Electric 11521 is its user-friendly design, which facilitates ease of use and enhances the overall welding experience.

Equipped with a powerful 180 amp output, the Lincoln Electric 11521 is capable of tackling a wide range of welding applications. It operates on a standard 230-volt outlet, allowing users to work on various materials, including mild steel, stainless steel, and aluminum, with thicknesses up to 5/16 inch. This versatility is crucial for those who handle different types of projects, from automotive repairs to home improvement tasks.

The welder employs a spool gun for welding aluminum, ensuring a smooth and efficient feeding of the wire. This technology mitigates the problems commonly associated with feeding aluminum wire through a regular gun, providing a seamless experience. Additionally, the Lincoln Electric 11521 features an adjustable welding speed and voltage, enabling users to fine-tune their settings to match the specific requirements of each project. This adaptability leads to better penetration, bead shape, and overall weld quality.

Another important aspect of the Lincoln Electric 11521 is its durability. Constructed with high-quality materials, this welder is designed for tough jobs and can withstand the wear and tear associated with heavy use. The unit's compact size and lightweight design further enhance its practicality, making it easy to transport between job sites or store when not in use.

Safety is a crucial element in welding, and the Lincoln Electric 11521 does not compromise on this aspect. It features a thermal overload protection system, which prevents damage to the machine by shutting it down in case of overheating. The welder also includes a gas-saving mode that intelligently reduces the gas flow during idle times, maximizing efficiency.

In summary, the Lincoln Electric 11521 is a versatile and reliable MIG welder that caters to a wide range of welding needs. With its powerful output, user-friendly features, advanced technologies, and robust safety mechanisms, it is an excellent investment for professionals and hobbyists alike looking to achieve high-quality welds with ease.