E-4

TROUBLESHOOTING

E-4

Observe Safety Guidelines

detailed in the beginning of this manual.

TROUBLESHOOTING GUIDE

 

 

 

 

 

 

 

 

 

 

 

PROBLEMS

 

 

POSSIBLE AREAS OF

 

 

RECOMMENDED

 

 

(SYMPTOMS)

 

 

MISADJUSTMENT(S)

 

 

COURSE OF ACTION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GAS FLOW PROBLEMS

 

 

 

 

 

Low or no gas flow when gun

 

 

1.

Check gas supply, flow regulator

 

 

 

 

 

trigger is pulled. Wire feed, weld

 

 

 

and gas hoses.

 

 

 

 

 

output and fan operate normally.

 

 

 

 

 

 

Contact your local Lincoln

 

 

 

 

 

2.

Check gun connection to

 

 

Authorized Field Service Facility.

 

 

 

 

 

 

machine for obstruction or leaky

 

 

 

 

 

 

 

 

 

seals.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PROBLEMS

 

 

POSSIBLE AREAS OF

 

 

RECOMMENDED

 

 

(SYMPTOMS)

 

 

MISADJUSTMENT(S)

 

 

COURSE OF ACTION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WELDING PROBLEMS

 

 

 

 

 

Arc is unstable – Poor starting

 

 

1. Check for correct input voltage

 

 

 

 

 

 

 

 

 

to machine – 115 vac.

 

 

 

 

 

 

 

 

2.

Check for proper electrode

 

 

 

 

 

 

 

 

 

polarity for process.

 

 

 

 

 

 

 

 

3.

Check gun tip for wear or dam-

 

 

Contact your local Lincoln

 

 

 

 

 

 

age – Replace.

 

 

Authorized Field Service Facility.

 

 

 

 

 

4.

Check for proper gas and flow

 

 

 

 

 

 

 

 

 

rate for process.

 

 

 

 

 

 

 

 

5.

Check work cable for loose or

 

 

 

 

 

 

 

 

 

faulty connections.

 

 

 

 

 

 

 

 

6.

Check gun for damage or

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

breaks.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CAUTION

If for any reason you do not understand the test procedures or are unable to Perform the tests/repairs safely, contact your

LOCAL AUTHORIZED LINCOLN ELECTRIC FIELD SERVICE FACILITY for assistance before you proceed.

SP-135 PLUS

Page 31
Image 31
Lincoln Electric IM788 manual GAS Flow Problems

IM788 specifications

The Lincoln Electric IM788 is a cutting-edge industrial welding inverter known for its advanced features and technologies that enhance productivity and efficiency in various welding applications. This machine is specifically designed to cater to the demands of high-performance environments while maintaining reliability and ease of use.

One of the standout features of the IM788 is its multi-process capability. It offers MIG, TIG, and stick welding options, making it a versatile choice for welders who work with a diverse range of materials and thicknesses. This flexibility enables operators to switch processes seamlessly without compromising on performance, thereby increasing overall productivity.

The IM788 is equipped with Lincoln Electric's exclusive Synchronized Arc Control Technology, which optimizes the arc characteristic for different materials and welding conditions. This technology helps to achieve cleaner and more precise welds, minimizing the need for post-weld finishing. Additionally, the machine offers a broad range of voltage and amperage settings, allowing for fine-tuning based on specific project requirements.

Another significant attribute of the IM788 is its built-in intelligence. The machine incorporates advanced microprocessor control, which enhances user interface capabilities and allows for easy adjustments to welding parameters. The intuitive digital display provides real-time feedback on settings and performance, enabling operators to make informed decisions and adjustments as needed.

Durability is also a key characteristic of the Lincoln Electric IM788. Its hardened metal case ensures protection against harsh working conditions, while internal components are designed to withstand heavy usage. This robust construction not only extends the machine's lifespan but also maintains consistent performance even in demanding environments.

The IM788's compact design and lightweight construction make it portable and easy to transport, allowing welders to move it effortlessly between job sites. Coupled with its energy-efficient operation, this inverter contributes to lower operational costs, making it an economical investment for both small workshops and large industrial operations.

In summary, the Lincoln Electric IM788 stands out for its multi-process capabilities, advanced welding technologies, user-friendly interface, and robust design. These features make it an ideal choice for professionals seeking a reliable and efficient welding solution. Whether for fabrication shops, construction sites, or maintenance applications, the IM788 delivers exceptional performance and versatility, solidifying its position as a leading welding inverter in the market.