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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 and

 

Fields in this section.

associated leads and connec-

 

3. Check for loose or missing

tions. See the Wiring Diagram.

 

 

 

brushes in the exciter alternator

3. Perform the Alternator Rotor

 

and welding generator.

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.

SA-250

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Lincoln Electric SVM128-A Troubleshooting Guide, Observe Safety Guidelines, Detailed in the beginning of this manual

SVM128-A specifications

The Lincoln Electric SVM128-A is a cutting-edge welding machine designed to meet the demands of both professional welders and DIY enthusiasts. This versatile welding power source brings together advanced technology and robust design, making it a reliable choice for various welding applications.

One of the standout features of the SVM128-A is its capability to perform multiple welding processes. It supports MIG, TIG, and stick welding, allowing users to tackle a wide range of projects with ease. This multi-functionality makes it ideal for professionals working in different industries, as well as for hobbyists who enjoy diverse welding tasks.

The SVM128-A is equipped with inverter technology, which enhances its performance by providing a more stable arc and improved energy efficiency. This technological advancement contributes to lower operational costs and allows for a more consistent weld quality across different materials and thicknesses. Additionally, the inverter technology enables the machine to be lightweight and portable, making it convenient for jobs that require mobility.

Another prominent characteristic of the SVM128-A is its user-friendly interface. The machine features intuitive controls and a digital display that allows operators to easily set the desired welding parameters. This simplified setup helps reduce the learning curve for new users while also offering precise control for experienced professionals.

The Lincoln Electric SVM128-A is designed with durability in mind. Its robust construction ensures that it can withstand the rigors of frequent use in demanding environments. The machine is also equipped with various safety features, including thermal overload protection and a duty cycle rating that prevents overheating, ultimately extending its lifespan.

For optimal performance, the SVM128-A provides adjustable output options, allowing users to customize the welding parameters based on their specific needs. This flexibility makes it suitable for welding various metals, including steel, aluminum, and stainless steel.

In summary, the Lincoln Electric SVM128-A combines versatility, advanced technology, and a user-friendly design. With its capability to perform multiple welding processes, lightweight construction, and durable features, it stands out as an excellent option for anyone looking to achieve high-quality welds. Whether for professional or personal use, the SVM128-A is poised to deliver reliable performance and exceptional results.