Return to Section TOC

Return to Section TOC

Return to Section TOC

Return to Section TOC

Return to Master TOC

Return to Master TOC

Return to Master TOC

Return to Master TOC

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

 

mally. The auxiliary output remains

machine will normally lose

 

Adjustment rheostat for resis-

 

constant. The engine is operating

some output as the components

 

tance

and proper operation.

 

correctly.

get heated.

 

Normal resistance is 64 ohms.

 

 

2. Check for loose, worn, dirty, or

 

Check

associated wires for

 

 

 

loose

or

faulty connections.

 

 

poorly seated DC generator

 

 

 

 

See the Wiring Diagram.

 

 

brushes.

 

 

 

 

 

 

 

 

 

 

 

 

3. The armature commutator may

2.

Perform

the

Field

Shunt

 

 

 

Winding Test.

 

 

 

 

need cleaned.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4. Check for loose or faulty weld-

3.

Check

the

Current

Range

 

 

 

Selector switch and contacts for

 

 

ing cables.

 

 

 

 

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.

SA-250

Page 60
Image 60
Lincoln Electric SVM128-A service manual Field Shunt Winding Test

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.