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F-15

 

 

 

 

 

 

F-15

 

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

 

 

 

 

 

 

 

 

 

 

 

 

WELDING PROBLEMS

 

 

 

 

 

 

The welding arc is “hot”, “spattery”,

 

 

 

10. Check all waveforms as illus-

 

“cannonballs” or “flares up”. The

 

 

 

 

trated

in

the Oscilloscope

 

engine runs normally. The auxil-

 

 

 

 

Wave forms Section.

 

iary power is normal. (Continued)

 

 

 

11. Perform

the Control Board

 

 

 

 

 

 

 

 

 

 

 

Power Supply Test.

 

 

 

 

 

 

 

Machine shuts down while arc

 

1. Check to make sure that the

1.

Check for poor connections at

 

gouging and all lamp indicators on

 

machine settings match the

 

J4 pins 1, 2, 3, 6 & 7 at the con-

 

front panel are lit. “ECL”, “ECH”,

 

weld application.

 

trol pc board. Also, perform the

 

or “CCS” appears on display as

 

2. Check to make sure the prop-

 

Exciter

Voltage

Feedback

 

machine is shutting down.

 

 

Test.

 

 

 

 

 

per carbon arc rod is being

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

used.

The maximum carbon

2.

Check for loose or faulty con-

 

 

 

arc rod for the Commander 400

 

nections or wires at the T1, T2,

 

 

 

is 5/16”.

 

 

or T3

capacitor

connection

 

 

 

3. Attempt to arc gouge at a less-

 

block and back to the capacitor

 

 

 

 

bank.

On machines equipped

 

 

 

er current, if the application will

 

 

 

 

 

with

L10953-1

Exciter

 

 

 

permit.

 

 

 

 

 

 

 

Feedback module asbly, check

 

 

 

 

 

 

 

 

 

4. If the machine shuts down

 

leads T1, T2, & T3 for faulty

 

 

 

while arc gouging in the gener-

 

connections.

 

 

 

 

al fab

tap, use the CV tap

3. Check for loose or faulty con-

 

 

 

instead. This is also an accept-

 

 

 

 

nections at leads 268, 269 &

 

 

 

able process.

 

 

 

 

 

270 from the exciter pc board

 

 

 

 

 

 

 

 

 

 

 

 

to J4 pins 1, 2 & 3 on the con-

 

 

 

 

 

 

trol board.

 

 

 

 

 

 

4. Perform the Exciter Capacitor

 

 

 

 

 

 

Bank Test.

 

 

 

 

 

 

5. Check for poor connections at

 

 

 

 

 

 

the J1 molex plug at the control

 

 

 

 

 

 

pc board. Also, perform the

 

 

 

 

 

 

Shunt Calibration Test.

 

 

 

 

 

6. Perform the Engine Throttle

 

 

 

 

 

 

Adjustment Test.

 

 

 

 

 

 

7. Check exciter waveforms as

 

 

 

 

 

 

illustrated in the Oscilloscope

 

 

 

 

 

 

Waveforms Section.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

Page 69
Image 69
Lincoln Electric SVM133-B service manual Wave forms Section, Control Board

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.