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F-9

TROUBLESHOOTING AND REPAIR

 

 

F-9

 

 

 

 

 

 

 

 

 

 

 

 

 

Observe Safety Guidelines detailed in the beginning of this manual.

 

 

 

 

 

 

 

 

 

 

 

 

PROBLEMS

 

 

POSSIBLE AREAS OF

 

RECOMMENDED

 

(SYMPTOMS)

 

 

MISADJUSTMENT(S)

 

COURSE OF ACTION

 

 

 

 

 

 

 

 

 

 

 

 

WELDING PROBLEMS

 

 

 

 

 

Poor arc striking with electrode

1.

Make sure the settings for wire

1. The output capacitors may be faulty.

sticking or blasting off.

 

 

feed speed and voltage are cor-

Check for loose connections at the

 

 

 

rect for the process being used.

capacitors.

Also check for leaky

 

 

 

 

capacitors. Replace if necessary.

 

 

2.

Make certain the gas shielding is

 

 

 

 

 

 

 

 

correct for the process being

WARNING: The liquid electrolyte in

 

 

 

used.

these

capacitors

is toxic.

Avoid

 

 

 

 

contact with any portion of your

 

 

3.

Make sure the machine’s recon-

body.

 

 

 

 

 

 

 

nect panel is configured properly

 

 

 

 

 

 

 

 

for the input voltage being

2. Perform

the

Output

Bridge

 

 

 

applied.

Rectifier Test.

 

 

 

 

 

 

The arc is unstable and or “hunting”

1.

Check for a worn or melted con-

1. Check for loose or faulty connections

 

 

 

tact tip.

at the output terminals, choke, out-

 

 

 

 

put

capacitors,

output

selector

 

 

2.

Check for loose or faulty connec-

switch, output contactor, and all

 

 

 

tions on the work and gun cables.

heavy current carrying leads. See

 

 

 

 

the Wiring Diagram.

 

3.Make sure the electrode polarity is

correct for the welding process 2. Check the output selector switch for

being used.

proper operation and good connec-

 

tions.

 

 

 

4. Check for rusted or dirty electrode

 

 

 

 

wire.

3. The output capacitors may be faulty.

 

Check for loose connections at the

5. Make sure the machine’s settings

capacitors.

Also

check

for leaky

and shielding gas are correct for

capacitors. Replace if necessary.

the process being used.

 

 

 

 

 

WARNING: The liquid electrolyte in

 

these capacitors is toxic. Avoid con-

 

tact with any portion of your body.

 

4. Perform

the

Output

Bridge

 

Rectifier Test.

 

 

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed. Call 1-888-935-3877.

Power MIG® 215XT

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Image 47
Lincoln Electric 11521 service manual Welding Problems, Body
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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.
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