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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

 

 

 

 

 

Low or no constant voltage (CV)

1.

Make sure the wire feeder, con-

1. Perform the Range Switch

 

welding output. Constant current

 

trol cable and welding cables are

Test.

 

 

 

 

(CC) and the auxiliary power are

 

connected correctly.

 

2. Check for poor

connections at

 

operating normally.

 

 

 

 

2.

Make sure the range switch is in

J21 pins 1 & 4 at the CV daugh-

 

 

 

 

 

the correct position.

 

ter board. This is CVSCR gate

 

 

3. Check the heavy current carry-

drive output.

Will not

affect

 

 

welding in the

general

fab or

 

 

 

ing cables associated

with the

 

 

 

pipe taps.

 

 

 

 

 

 

CV output terminal. See the

 

 

 

 

 

 

 

 

 

 

 

 

 

Wiring Diagram.

 

3. Check for poor connections

 

 

 

 

 

along lead #208 at the negative

 

 

 

 

 

CV output stud and at the J21

 

 

 

 

 

pin 6 molex plug at the CV

 

 

 

 

 

daughter board. This is CV volt-

 

 

 

 

 

age feedback input. Will not

 

 

 

 

 

affect welding in the general fab

 

 

 

 

 

or pipe taps.

 

 

 

 

 

 

 

 

4. Perform the Control Board

 

 

 

 

 

Power Supply Test.

 

 

 

 

 

 

 

 

 

The machine powers down within

1.

Contact your local

Lincoln

1. Check to make sure that the

 

seconds of power up and all lamp

 

Authorized Field Service Shop.

machine has an L10953-1

 

indicators on the front panel are lit.

 

 

 

Exciter Feedback Module Asbly.

 

“ECL”, “ECH”, or “CSS” appears

on

 

 

2. Check for loose or faulty con-

 

display as machine is shutting

 

 

 

 

 

 

 

nections or wires at the T1, T2 or

 

down.

 

 

 

T3 capacitor connection

block

 

 

 

 

 

and back to the capacitor bank.

 

 

 

 

 

On machines

equipped with

 

 

 

 

 

L10953-1 Exciter Feedback

 

 

 

 

 

Module Asbly check leads T1,

 

 

 

 

 

T2 and T3 for fault connections.

 

 

 

 

 

3. Check for loose or faulty con-

 

 

 

 

 

nections at leads 268, 269, &

 

 

 

 

 

270 from the exciter PC Board to

 

 

 

 

 

J4 pins 1, 2 & 3 on the control

 

 

 

 

 

board.

 

 

 

 

 

 

 

 

4. If possible check exciter wave-

 

 

 

 

 

forms as illustrated in the

 

 

 

 

 

Oscilloscope

Waveforms

 

 

 

 

 

Section.

 

 

 

 

 

 

 

 

5. If possible perform the Exciter

 

 

 

 

 

Voltage Feedback Test.

 

 

 

 

 

 

 

 

 

 

 

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 1- 800-833-9353 (WELD).

Commander 400

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Lincoln Electric SVM133-B service manual Oscilloscope Waveforms Section
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SVM133-B specifications

The Lincoln Electric SVM133-B is an innovative welding machine designed to meet the diverse needs of welders and fabrication shops. This versatile equipment combines state-of-the-art technology with user-friendly features, making it ideal for both novice and professional welders.

One of the main features of the SVM133-B is its advanced inverter technology. This allows for a more efficient power delivery, which translates into reduced energy consumption and lower operational costs. The machine is capable of delivering optimal welding performance across a range of materials, from thin sheets to heavier sections, making it suitable for various applications in industries such as automotive, construction, and repair.

The SVM133-B supports multiple welding processes, including MIG, stick, and TIG welding. This flexibility ensures that users can adapt to various job requirements without needing multiple machines. The intuitive control panel allows users to switch between modes effortlessly, providing a seamless welding experience.

Another notable characteristic of the SVM133-B is its compact and lightweight design. Weighing significantly less than traditional welding machines, it is highly portable, making it easy to transport to different job sites. Additionally, its rugged construction ensures durability, allowing it to withstand tough working conditions.

The SVM133-B is equipped with advanced safety features, such as overheat and overload protection, which safeguard both the machine and the user during operation. It also includes a digital display that provides real-time feedback on settings, voltage, and amperage, which enhances precision and control during welding tasks.

Lincoln Electric has prioritized ease of use in the SVM133-B, with quick setup guides and clear instructions. This user-centric approach not only facilitates a smoother learning curve for beginners but also optimizes the workflow for experienced welders, enabling them to maximize productivity.

One of the standout features is the capability to weld aluminum with ease, thanks to its spool gun compatibility. This feature sets the SVM133-B apart from many competitors, providing added value for users who require flexibility in their welding projects.

In summary, the Lincoln Electric SVM133-B stands out in the welding machine market due to its inverter technology, multi-process capabilities, portability, and robust safety measures. It embodies the perfect blend of innovation and practicality, making it a top choice for welders looking to enhance their skills and productivity across a wide array of applications. Whether for professional use or hobbyist projects, the SVM133-B offers a reliable solution for high-quality welding tasks.
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