Return to Section TOC

Return to Section TOC

Return to Section TOC

Return to Section TOC

Return to Master TOC

Return to Master TOC

Return to Master TOC

Return to Master TOC

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

 

 

No welding output. The 115 VAC is

1. Make sure the polarity switch is

1. Check for loose or faulty con-

present at the receptacle. (220

in the proper position and func-

nections on the heavy current

VAC receptacle on European mod-

tioning correctly.

carrying leads. (Polarity switch,

els only).

2. One of the thermostats may be

output choke, output terminals,

 

etc.)

 

tripped. Allow the machine to

 

 

 

 

cool. The thermal light will be

2. Check for faulty connections or

 

on.

a defective thermostat. Check

 

3. Make sure the welding cables,

leads #313, #314,.#315 and

 

#316. See the Wiring Diagram.

 

torch and connections are in

 

The thermal light will be on.

 

good operating condition.

 

 

 

 

 

3. Perform the T1 Transformer

 

 

Test.

 

 

4. Perform the SCR Bridge Test.

 

 

5. Check the current control R1 for

 

 

proper operation. Normal resis-

 

 

tance is 10,000 ohms. Also

 

 

check associated leads for

 

 

loose or faulty connections.

 

 

6. 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 216- 383-2531 or 1-800-833-9353.

SQUARE WAVE TIG 275

Page 45
Image 45
Lincoln Electric SVM141-A service manual Perform the SCR Bridge Test

SVM141-A specifications

The Lincoln Electric SVM141-A is a cutting-edge solution designed for operators requiring precision, efficiency, and versatility in their welding applications. This machine is known for its compact form but robust feature set, making it an ideal choice for both professional welders and industrial applications.

One of the standout features of the SVM141-A is its advanced inverter technology. This innovation allows for a stable arc, providing consistent results even under varying conditions. The machine minimizes power consumption, making it energy-efficient without compromising performance. The inverter technology also supports a wider input voltage range, making the SVM141-A suitable for use in diverse environments and job sites.

Another key characteristic is its multi-process capability. The SVM141-A supports MIG, stick, and TIG welding processes, providing flexibility for various welding tasks. This versatility enables operators to tackle different materials, including mild steel, stainless steel, and aluminum, making it a valuable tool for numerous projects.

The user-friendly interface of the SVM141-A includes an intuitive digital display, which allows welders to adjust settings with ease. This feature is crucial for ensuring the right configurations for specific welding tasks, reducing the chances of errors and enhancing the overall finish of welds.

Safety is also a priority with the Lincoln Electric SVM141-A. It comes with built-in safety features such as overheat protection and automatic shutdown, ensuring operator safety and equipment longevity. The machine's lightweight design enhances portability, allowing it to be used in various workspaces with ease.

Durability is another hallmark of the SVM141-A. Constructed with high-quality materials, the machine is designed to withstand the rigors of demanding work environments. This ensures reliability over time, providing consistent performance even under heavy use.

In summary, the Lincoln Electric SVM141-A is a versatile, efficient, and user-friendly welding machine that appeals to a wide range of users. Its advanced inverter technology, multi-process capabilities, safety features, and durable construction make it a strong contender in the welding market, suitable for both professionals and hobbyists alike. Whether it’s for light fabrication, repairs, or industrial welding tasks, the SVM141-A meets diverse needs with precision and reliability.