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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

 

 

 

 

 

 

 

 

 

 

 

FUNCTION PROBLEMS

 

 

 

 

 

 

 

The machine often "noodle welds"

1. The machine may be trying to

1.

Perform

 

the

Current

 

when running a particular process.

deliver too much power. When

 

Transducer Test.

 

 

 

The output is limited to approxi-

the average output current

2.

The Control

Board

may be

 

mately 100 amps.

exceeds 570

amps,

the

 

 

faulty.

 

 

 

 

 

 

machine will "phase back" to

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

protect itself. Adjust the proce-

 

 

 

 

 

 

 

 

dure or reduce the load to lower

 

 

 

 

 

 

 

 

the current draw from the Power

 

 

 

 

 

 

 

 

Wave 455R machine.

 

 

 

 

 

 

 

 

The machine often "noodle welds"

STT work/ Electrode sense lead

1.

Refer to sense lead route rec-

 

when running an STT process.

routing

 

 

 

ommendations section

 

 

 

 

 

 

 

2.

Perform

 

the

Current

 

 

 

 

 

 

Transducer Test.

 

 

 

 

 

 

 

 

 

 

 

The Power Wave 455R will not pro-

1. The input voltage may be too

1.

Perform

the

Output

Rectifier

 

 

duce full output.

low, limiting the output capability

 

Test.

 

 

 

 

 

 

of the machine.

Make certain

2.

Perform

the

Current Trans-

 

 

the input voltage is correct

for

 

 

 

ducer Test.

 

 

 

 

 

the machine and the reconnect

 

 

 

 

 

 

 

 

 

 

 

 

 

 

panel configuration.

 

3.

Perform the Power Board Test.

 

 

2. Make sure all three phases of

4.

The Control Board may be

 

 

input power are being applied to

 

faulty.

 

 

 

 

 

 

the machine.

 

 

5.

If using the STT output terminal,

 

 

 

 

 

 

 

3. If using the STT output terminal,

 

the STT Chopper Board may be

 

 

be aware that the STT output is

 

faulty. See the Wiring Diagram.

 

 

limited to 325 amps.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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.

POWER WAVE 455M/MSTT

Page 53
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Lincoln Electric SVM173-A service manual Function Problems

SVM173-A specifications

The Lincoln Electric SVM173-A is a highly regarded welding power supply that stands out for its advanced features, robust performance, and innovative technologies. This machine is specifically designed to meet the demands of both industrial and commercial welding applications, making it a versatile choice for professionals.

One of the main features of the SVM173-A is its high efficiency, which contributes to reduced energy costs and enhanced productivity. The device operates on a powerful DC output, ensuring stable and reliable arc performance. This is particularly beneficial when working with various materials, allowing for smooth and consistent welds.

The SVM173-A leverages Lincoln Electric's proprietary inverter technology. This innovation allows for a lighter weight and more compact design without compromising on power. The inverter technology also enables precise control of the welding parameters, which is critical for maintaining quality across different welding tasks. Additionally, the machine features a wide input voltage range, accommodating various power sources and enhancing its adaptability on job sites.

Another key characteristic of the SVM173-A is its user-friendly interface. The machine is equipped with an intuitive control panel that allows users to easily adjust settings, making it accessible for both novice and experienced welders. The digital display provides clear readouts of output parameters and error notifications, facilitating quick troubleshooting in the field.

Safety is paramount in welding operations, and the SVM173-A incorporates several protection features. These include overcurrent protection, overheating protection, and circuit protection, ensuring that the machine operates safely and efficiently under various conditions.

The SVM173-A also supports a wide range of welding processes, including MIG, TIG, and stick welding. This flexibility makes it an ideal choice for workshops that require a multi-process machine capable of handling diverse applications. Furthermore, the SVM173-A supports spool gun operation, which is particularly useful for aluminum welding, enhancing its versatility even further.

In summary, the Lincoln Electric SVM173-A is a powerful and adaptable welding machine that combines innovative technologies, user-friendly features, and robust safety mechanisms. Its high efficiency, precision control, and multi-process capabilities make it an excellent investment for professionals seeking reliable performance in demanding environments. Whether for heavy-duty industrial use or more specialized applications, the SVM173-A stands as a testament to Lincoln Electric's commitment to quality and innovation in welding solutions.