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F-7

 

 

 

 

 

 

 

F-7

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

 

 

 

 

 

No welding output in either CV or

 

1.

Contact

your local Lincoln

1.

Check for loose or faulty con-

stick modes. Also no auxiliary

 

 

Authorized Field Service Shop.

 

nections or wires at the T1, T2 or

power. Engine operates normally.

 

 

 

 

 

T3 capacitor

connection block

 

 

 

 

 

 

and back to the capacitor bank.

 

 

 

 

 

 

On machines equipped with

 

 

 

 

 

 

L10953-1 Exciter feedback mod-

 

 

 

 

 

 

ule asbly check leads T1, T2 and

 

 

 

 

 

 

T3 for faulty connections. See

 

 

 

 

 

 

the Wiring Diagram.

 

 

 

 

 

 

2.

Perform the Exciter Capacitor

 

 

 

 

 

 

Bank Test.

 

 

 

 

 

 

 

3.

Check for a short across the

 

 

 

 

 

 

weld bridge plates.

 

 

 

 

 

 

4.

Disconnect leads 3, 5 & 6 from

 

 

 

 

 

 

the terminal block located inside

 

 

 

 

 

 

the right hand side of the control

 

 

 

 

 

 

box. Check for a short across

 

 

 

 

 

 

each

115v

and

115V/230V

 

 

 

 

 

 

receptacle.

 

 

 

 

 

 

 

5.

Check fro shorts or opens in the

 

 

 

 

 

 

stator by performing the Stator

 

 

 

 

 

 

Resistance Test.

 

 

 

 

 

 

6.

Perform the

Control Board

 

 

 

 

 

 

Power Supply Test.

 

No auxiliary power at receptacles.

 

1.

Check the circuit breakers CB1

1.

Check the GFCI receptacles and

The engine operates normally and

 

 

thru CB4. Reset if tripped.

 

associated wires for loose or

the welding output is normal.

 

2.

Check

the GFCI receptacles.

 

faulty

connections.

See the

 

 

 

Wiring Diagram.

 

 

 

 

Reset if tripped.

 

 

 

 

 

 

 

 

 

 

 

 

3. Check for loose or faulty plugs at

2.

Check the continuity of leads #3,

 

 

 

#5, #5A and #6 from the exciter

 

 

 

the power receptacles.

 

 

 

 

 

windings to their respective tie

 

 

 

 

 

 

 

 

 

 

 

 

points. See the Wiring Diagram.

 

 

 

 

 

3.

Perform the Stator Voltage 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 Resistance Test

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.