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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

 

 

 

 

No welding output but wire feeds

1. Check the input voltage at the

1. Check for loose or broken con-

normally when gun trigger is pulled.

machine. Input voltage must

nections at the output terminals,

 

match the rating plate and the

the choke and all heavy current

 

reconnect panel.

carrying leads. See the Machine

 

 

Schematic.

 

 

 

2. The gun may be faulty. Check for

 

 

 

 

 

continuity.

2. Make sure that the transformer

 

 

secondary

leads are

securely

 

3. Check continuity through the

connected to the Output Rectifier

 

work lead.

assembly.

 

 

 

 

 

3. Check for OCV at output studs

 

 

when trigger is pulled. If OCV is

 

 

present, the gun may be faulty.

 

 

Replace.

 

 

 

 

 

4. Check for 57VAC at the input of

 

 

output rectifier. If reading is not

 

 

correct

Perform

Main

 

 

Transformer Tests. If you mea-

 

 

sure approximately

57 VAC,

 

 

check for 80VDC at the output of

 

 

the output rectifier. If reading is

 

 

not correct perform the Output

 

 

Rectifier

Assembly

Tests. If

 

 

80VDC

is there

Perform

 

 

Chopper Board Test.

 

 

 

 

5. Check for 15VDC input to the

 

 

Control Board at leads 12J4

 

 

(412) to 10J4 (410), -15VDC at

 

 

leads 11J4 (411) to 10J4 (410),

 

 

5VDC at leads 8J4 (408) to 10J4

 

 

(410). If missing a voltage check

 

 

wiring back to Digital Power

 

 

Supply PCB. If voltage is ok, the

 

 

Control Board may be faulty.

 

 

Replace.

 

 

 

 

 

 

 

 

 

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call 1-800-833-9353.

POWER MIG 300

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Image 49
Lincoln Electric SVM160-B service manual Output Problems
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SVM160-B specifications

The Lincoln Electric SVM160-B is a standout model in the realm of portable arc welders, designed specifically for light to medium-duty welding tasks. As part of Lincoln Electric’s renowned line of welding equipment, the SVM160-B combines efficiency with durability, catering to both professional welders and hobbyists alike.

One of the primary features of the SVM160-B is its lightweight and compact design. Weighing in at just around 60 pounds, it offers excellent portability, allowing users to easily transport the unit to various job sites. This mobility is enhanced by an integrated handle and a rugged construction, making it suitable for both indoor and outdoor applications.

The SVM160-B utilizes advanced inverter technology, which significantly enhances its performance capabilities. This technology not only contributes to the welder's energy efficiency but also allows for a more stable arc, reducing spatter and resulting in cleaner welds. The machine can operate on both 120V and 240V power sources, providing flexibility for users to adapt to different settings and requirements.

Among its key characteristics, the SVM160-B features a welding output range that accommodates various welding needs, allowing users to achieve welds from 20 to 160 amps. This versatility makes it ideal for welding different materials, including mild steel, stainless steel, and aluminum. Furthermore, the unit supports a range of welding processes, including MIG, stick, and TIG welding, enhancing its adaptability for various projects.

Another highlight of the SVM160-B is its user-friendly interface. The control panel is designed to facilitate ease of use, with clearly marked dials and indicators that enable quick adjustments of settings. This intuitive design ensures that both novice and experienced users can operate the machine efficiently and effectively.

Safety features are also a crucial aspect of the SVM160-B. It comes equipped with thermal overload protection, which prevents the unit from overheating during extended use. This built-in safeguard extends the welder's lifespan and enhances user safety.

In summary, the Lincoln Electric SVM160-B is a versatile, portable welder that combines advanced technology with user-friendly features, making it an excellent choice for a wide range of welding applications. Its lightweight design, inverter technology, and robust safety features make it a reliable option for both professionals and enthusiasts. Whether tackling small repairs or larger projects, the SVM160-B stands ready to deliver quality results.
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