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F-5

TROUBLESHOOTING & REPAIR

F-5

TROUBLESHOOTING GUIDE

 

 

 

Observe Safety Guidelines

 

 

 

detailed in the beginning of this manual.

 

 

 

 

 

 

 

PROBLEMS

 

POSSIBLE AREAS OF

 

RECOMMENDED

 

 

(SYMPTOMS)

 

MISADJUSTMENT(S)

 

COURSE OF ACTION

 

 

 

 

 

 

 

 

 

 

 

 

FEEDING PROBLEMS

 

 

 

 

 

 

 

 

 

 

 

Major physical or electrical dam-

Contact Lincoln Electric Service

 

 

 

 

age is observed when cover wrap-

Department (1-888-935-3877)

 

 

 

 

 

around is removed.

 

 

 

 

 

 

 

 

 

 

 

Machine is dead — no output —

Power Switch must be in ON posi-

Check continuity of 3-amp slow

no fan — no display.

 

tion.

 

blow fuse located on reconnect

 

 

 

 

panel.

 

 

 

 

Check input voltage.

 

1. Check Power Switch (S1).

 

 

If machine is set for single-phase

2. Look for loose or broken wires

 

 

operation, inspect to assure that

 

between Power Switch and

 

 

WHITE and BLACK leads of the

 

Input Rectifier (component

 

 

Power Cord are connected properly

 

D13).

 

 

 

 

and RED lead is not connected and

3. Check for broken leads to pri

 

 

is insulated.

 

 

 

 

 

 

mary of Auxiliary Transformer

 

 

Check that input voltage set-up

 

T1.

 

 

 

 

switch and jumper A (the reconnect,

4.

Possible open primary coil of

 

 

auxiliary jumper) are in proper posi-

 

 

tion for input voltage being used.

 

Auxiliary Transformer T1.

 

 

 

 

 

 

No output but fan operates and the

Output Terminal Switch or Remote

1.

See Output Pilot Circuit test.

meter display is on.

 

Trigger MUST be in ON position.

2. See Thermal Protection AC

 

 

 

 

 

 

Local/Remote Switch must be in

 

Trigger Circuit test.

 

 

 

 

LOCAL position unless remote con-

3.

See Overvoltage Protection

 

 

trol device is attached to remote

 

 

receptacle.

 

 

DC Trigger Circuit test.

 

 

 

 

If machine has not been used for a

4.

See Capacitor Balance

test

 

 

long time and is connected for

380

5.

See Switch PC Board test.

 

 

VAC or higher, Capacitors may

 

 

need “conditioning.” See Input

6.

See Power Board test

 

 

 

 

Filter Capacitor Conditioning

in

 

 

 

 

this section

 

7. Look for broken or loose con-

 

 

 

 

 

 

 

 

 

nections on high current-carry-

 

 

 

 

 

ing parts of machine (i.e.,

 

 

 

 

 

choke, output bridges,

output

 

 

 

 

 

studs, main transformer.

 

 

 

 

 

 

 

 

 

 

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 1-888-935-3877.

V300-PRO

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Lincoln Electric SVM105-B service manual Feeding Problems, Department
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SVM105-B specifications

The Lincoln Electric SVM105-B is a state-of-the-art welding machine that represents a leap forward in welding technology, designed for both professionals and enthusiasts in the welding industry. This versatile machine combines robust performance with user-friendly features, making it suitable for a wide range of welding applications.

One of the key features of the SVM105-B is its advanced inverter technology. This allows for a lightweight design without compromising on power output. The inverter technology ensures a stable arc and precise control, enabling consistent weld quality across various materials, including mild steel, stainless steel, and aluminum. This feature is particularly beneficial for users who demand exceptional performance in both thin and thick materials.

The SVM105-B also boasts an impressive output range, typically between 10A to 105A, allowing for adaptability to different welding tasks. Its ability to seamlessly switch between DC and AC modes makes it an ideal choice for professionals working in diverse environments, facilitating operations such as TIG and stick welding. This versatility is further enhanced by its compatibility with various electrode types, ensuring a more efficient and effective welding process.

User safety and comfort have not been overlooked in the design of the SVM105-B. Equipped with an efficient cooling system, this machine effectively manages heat during prolonged use, ensuring durability and longevity. Additionally, its intuitive digital display provides real-time feedback on settings, making it easier for users to monitor parameters and make necessary adjustments on the fly.

The SVM105-B is built with portability in mind. Its compact and lightweight design makes it easy to transport, enabling welders to bring their equipment to job sites without hassle. Furthermore, the machine features sturdy handles that contribute to its ease of maneuverability, supporting the demands of both inside workshops and outdoor projects.

Moreover, Lincoln Electric places a strong emphasis on quality and reliability, and the SVM105-B is a testament to this commitment. The machine is constructed from durable materials designed to withstand the rigors of daily use, ensuring it remains a staple in any welder's toolkit for years to come.

In conclusion, the Lincoln Electric SVM105-B stands out with its combination of advanced inverter technology, versatile output, user-friendly interface, and robust construction. Whether for professional or hobbyist use, this welding machine meets a wide array of welding needs while providing excellent performance and durability.
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