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-9

 

 

 

 

 

F-9

TROUBLESHOOTING & REPAIR

 

 

TROUBLESHOOTING GUIDE

 

 

Observe Safety Guidelines

 

 

 

detailed in the beginning of this manual.

 

 

 

 

 

 

PROBLEMS

 

POSSIBLE AREAS OF

RECOMMENDED

 

 

(SYMPTOMS)

 

MISADJUSTMENT(S)

COURSE OF ACTION

 

 

 

 

 

 

 

 

 

 

 

FUNCTION PROBLEMS

 

 

 

The engine will NOT go to high

1.

Check welding cables for loose

1. Check the reed switch (CR2) for

speed when a load is applied to the

 

or faulty connections.

proper operation.

The

reed

welding output terminals.

The

 

 

switch should close when there

engine does go to high speed when

 

 

is current flow in the welding cir-

a load is applied to the AC auxiliary

 

 

cuit.

 

 

power receptacles.

 

 

 

2. Locate the red lead connected

 

 

 

 

 

 

 

 

to the idler PC board.

While

 

 

 

 

leaving the red lead connected,

 

 

 

 

jumper the red lead to frame

 

 

 

 

ground. If the engine goes to

 

 

 

 

high speed, the fault is in the

 

 

 

 

reed switch or associated leads.

 

 

 

 

3. If the engine does NOT go to

 

 

 

 

high speed (in step 2), the idler

 

 

 

 

PC board may be faulty.

 

 

 

 

 

The engine will NOT go to high

1.

Check the auxiliary power plug

1. Check the leads associated with

speed when a load is applied to the

 

and associated leads for loose

the current transformer for loose

AC auxiliary receptacles.

The

 

or faulty connections.

or faulty connections. See the

engine does go to high speed when

2. The load may be too small. The

Wiring Diagram.

 

 

a load is applied to the welding out-

 

 

 

 

load must be above 150 watts.

2. Check the current

transformer

put terminals.

 

 

 

 

 

for “opens” in the windings.

 

 

 

 

 

 

 

 

3. The idler PC board may be

 

 

 

 

faulty. Replace.

 

 

 

 

 

 

 

 

 

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 62 Page 64
Page 63
Image 63
Lincoln Electric SVM128-A service manual Function Problems
Page 62 Page 64

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.
Top Page Image Contents