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F-8

 

 

 

F-8

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

 

 

 

 

 

 

 

 

ENGINE PROBLEMS

 

 

 

Engine will not idle down to low

1.

Make sure the Idler switch (S4)

1.

Perform the Idler Solenoid Test.

speed. Machine has normal weld

 

is in the “AUTO” position.

2.

Make sure the control board

and auxiliary power.

 

 

2.

Make sure there is not an exter-

 

mounting/grounding screws are

 

 

 

 

nal load on either the weld ter-

 

tight.

 

 

minals or the auxiliary recepta-

3. Check leads #226, #227, #237 &

 

 

cles.

 

 

 

#254 for loose or faulty connec-

 

 

 

 

 

3.

Check for mechanical restriction

 

tions. See the Wiring Diagram.

 

 

in the solenoid linkage.

4. Check solenoid waveforms as

 

 

 

 

 

 

 

illustrated in the Oscilloscope

 

 

 

 

Waveforms Section.

 

 

 

5. Check to make sure that leads

 

 

 

 

#227 & #232 at the B1 & B3 ter-

 

 

 

 

minals on the control board are

 

 

 

 

not swapped. See the Wiring

 

 

 

 

Diagram.

 

 

 

 

Engine will not go to high idle when

1. Make sure the welding cables

1. Check the current sensing toroid

attempting to weld or use auxiliary

 

and connections are tight.

 

for loose or faulty connections.

power. Output is normal when Idler

NOTE: The automatic idler may

 

CV models only. See the Wiring

switch is in the “HIGH” position.

 

Diagram.

Automatic idle function works prop-

 

not function if the auxiliary

 

 

 

 

power is loaded to less

2.

Make sure the toroid and lead

erly when the auxiliary power is

 

 

than 150 watts.

 

assembly are assembled cor-

loaded.

 

 

 

 

 

rectly. CV models only. See the

 

 

 

 

 

 

 

 

Wiring Diagram.

 

 

 

3. Check the shunt and associated

 

 

 

 

leads for loose or faulty connec-

 

 

 

 

tions. Stick models only.

 

 

 

4. The control board may be faulty.

 

 

 

 

 

 

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 Engine Problems

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.