Lincoln Electric SVM133-B service manual Oscilloscope

Models: SVM133-B

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F-5

 

 

 

 

 

 

 

F-5

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

 

 

 

 

 

 

 

 

 

 

 

OUTPUT PROBLEMS

 

 

 

 

 

 

“---” or “CRS” stuck on display when1. Contact

your local

Lincoln

 

1. Check for loose or faulty connec-

machine is powered up. No welding

Authorized Field Service shop.

 

tions or wires at the T1, T2, or T3

output in both stick and CV modes.

 

 

 

 

capacitor connection block and

Engine operates normally and auxil-

 

 

 

 

back to the capacitor bank. On

iary power is normal.

 

 

 

 

machines

 

equipped

with

 

 

 

 

 

L10953-1 Exciter feedback

 

 

 

 

 

Module Assembly check

leads

 

 

 

 

 

T1, T2 & T3 for faulty connec-

 

 

 

 

 

tions.

 

 

 

 

 

 

 

 

 

2. Check for loose or faulty connec-

 

 

 

 

 

tions at leads 268,269, & 270

 

 

 

 

 

from the exciter PC board to J4

 

 

 

 

 

pins 1,2, & 3 on the control

 

 

 

 

 

board.

 

 

 

 

 

 

 

 

 

3. Check the exciter waveforms as

 

 

 

 

 

illustrated

in

the Oscilloscope

 

 

 

 

 

Waveforms Section.

 

 

 

 

 

 

 

 

The welding output is low with little

1. If the remote control unit is not

 

1. Perform

the

Fine Control

or no control of output. The auxil-

connected to the machine, make

 

Potentiometer Test.

 

 

iary power is OK. The engine is

sure the

Local/Remote

switch

 

2. Perform the Stator Voltage Test.

operating normal.

(S1) is in the “Local” position.

 

 

 

 

 

 

 

 

2. If a remote control unit

is con-

 

3. Perform the SCR/Diode Bridge

 

 

Test.

 

 

 

 

 

nected, and the machine oper-

 

 

 

 

 

 

 

 

 

 

 

 

 

ates normally when the switch is

 

 

 

 

 

 

 

in the “Local” position, the

 

 

 

 

 

 

 

remote control cable or unit may

 

 

 

 

 

 

 

be faulty. Check or replace.

 

 

 

 

 

 

The machine has low welding out- 1. The engine speed may be low.

1. If the speed is low, perform the

put and low auxiliary output.

Normal high idle (no load) is

 

Engine Throttle Adjustment

 

1900 RPM.

 

 

Test.

 

 

 

 

 

 

 

 

 

2. Perform the Stator Voltage Test.

 

 

 

 

 

3. Perform the Exciter Capacitor

 

 

 

 

 

Bank Test.

 

 

 

 

 

 

 

 

 

4. The engine may have lost horse-

 

 

 

 

 

power and may need major

 

 

 

 

 

repairs.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

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.