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F-6

 

 

 

 

F-6

 

TROUBLESHOOTING & REPAIR

 

 

 

 

 

Observe Safety Guidelines

 

TROUBLESHOOTING GUIDE

 

detailed in the beginning of this manual.

 

 

 

 

 

 

 

 

 

 

 

 

 

PROBLEMS

POSSIBLE AREAS OF

RECOMMENDED

 

 

 

 

(SYMPTOMS)

MISADJUSTMENT(S)

COURSE OF ACTION

 

 

 

 

 

 

 

 

 

 

 

 

OUTPUT PROBLEMS

 

 

 

 

 

 

The welding output varies abnor-

1. May be a normal condition. The

1. Check the Fine Current Adjust-

 

mally. The auxiliary output remains

machine will normally lose

ment rheostat for resistance

 

constant. The engine is operating

some output as the components

and proper operation.

Normal

 

correctly.

get heated.

resistance is 64 ohms. Check

 

 

2. Check for loose, worn, dirty, or

associated wires for

loose

or

 

 

faulty connections.

See

the

 

 

poorly seated DC generator

 

 

Wiring Diagram.

 

 

 

 

 

brushes.

 

 

 

 

 

 

 

 

 

 

 

 

3. The armature commutator may

2. Perform the Shunt Field Wind-

 

 

ing Test.

 

 

 

 

 

need cleaned.

 

 

 

 

 

 

 

 

 

 

 

 

4. Check for loose or faulty weld-

3. Check

the Current

Range

 

 

Selector

Switch and

contacts

 

 

ing cables.

 

 

for proper operation.

 

 

 

 

 

 

 

 

 

 

 

 

4. While the machine is loaded,

 

 

 

check the interpole and series

 

 

 

coils for signs of “arcing.” This

 

 

 

condition would point to shorted

 

 

 

turns in the “arcing” coil.

 

 

 

 

 

5. The main armature may be

 

 

 

faulty. Check for grounds.

 

 

 

 

 

 

 

 

 

 

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, con- tact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call 216-383-2531 or 1-800-833-9353.

CLASSIC II

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Lincoln Electric SVM125-A service manual Perform the Shunt Field Wind

SVM125-A specifications

The Lincoln Electric SVM125-A is a versatile and highly efficient welding machine that has gained significant recognition in the welding industry. Designed for both professionals and enthusiasts, this machine combines advanced technology with user-friendly features to deliver outstanding performance in a range of welding applications.

One of the standout features of the SVM125-A is its Inverter Technology. This cutting-edge technology allows for lightweight and compact design, making the machine highly portable. The inverter technology also provides a steady arc, which is crucial for achieving clean, high-quality welds. With a duty cycle of 125 amps at a 60% duty cycle, this welding machine can handle a variety of materials and thicknesses, from thin sheet metal to heavier structural components.

The SVM125-A supports multiple welding processes, including MIG, stick, and TIG welding. This versatility makes it an ideal choice for diverse welding tasks, whether you're working in a fabrication shop, doing repair work, or engaged in hobbyist projects. The machine features easy switch functionality, allowing users to quickly shift between welding processes without complicated setup.

Another notable characteristic is the machine's user-friendly interface. The intuitive control panel includes clear indicators and knobs that allow for easy adjustments of voltage and wire feed speed. This design is especially helpful for novice welders, providing them with the confidence to make adjustments as needed and ensuring optimal weld quality.

Safety is also a priority with the SVM125-A. The machine is equipped with thermal overload protection, which automatically shuts it down in case of overheating, preventing damage to the unit and ensuring operator safety. Additionally, the machine features a robust construction that emphasizes durability, making it suitable for demanding work environments.

Portability is enhanced through its lightweight design, and the built-in carrying handle makes it easy to transport from one job site to another. The SVM125-A is also compatible with a variety of welding accessories, further increasing its adaptability and functionality.

In conclusion, the Lincoln Electric SVM125-A stands out as a well-rounded welding machine that integrates advanced technology with user-friendly features. Its versatility in welding processes, robust design, and emphasis on safety and usability make it a valuable tool for welders at all skill levels. Whether for professional use or personal projects, the SVM125-A is a reliable choice that delivers exceptional performance and quality.