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F-4

 

 

 

 

F-4

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 engine starts and runs at cor-

1.

Check the 15 amp fuse located

1. Check the “flashing” diode and

rect speed, but there is no, or very

 

on the inside of the front control

associated

leads connected

low, welder output voltage. There

 

panel.

 

between the generator brushes

is no AC auxiliary output voltage.

2. If the welder output is zero volts,

and the exciter alternator brush-

 

es.

 

 

 

the fields may need to be

 

 

 

 

 

 

 

flashed.

See Flashing the

2. Check the field diode bridge

 

 

Fields in this section.

and associated leads and con-

 

3.

Check for

loose or missing

nections.

See the Wiring

 

Diagram.

 

 

 

brushes in the exciter alternator

 

 

 

 

 

 

 

and welding generator.

3. Perform the Alternator Rotor

 

 

 

 

Test.

 

 

 

 

 

4. Check for “opens” or shorted

 

 

 

 

turns in the alternator stator

 

 

 

 

windings. The coils must NOT

 

 

 

 

be grounded to the stator lami-

 

 

 

 

nation.

 

 

 

 

 

 

 

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 Troubleshooting Guide, Observe Safety Guidelines, Detailed in the beginning of this manual

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.