E-3

 

TROUBLESHOOTING

E-3

 

 

 

 

 

 

 

 

Observe all Safety Guidelines detailed throughout this manual

 

 

 

 

 

 

 

 

PROBLEMS

 

POSSIBLE

RECOMMENDED

 

 

(SYMPTOMS)

 

CAUSE

COURSE OF ACTION

 

 

 

 

 

Engine will not idle down to low

1. Idler switch in High idle position.

 

 

speed.

 

 

 

 

 

 

2.

External load on welder or auxil-

 

 

 

 

 

iary power.

 

 

 

 

3.

Faulty PC board or idler sole-

 

 

 

 

 

noid.

 

 

 

 

 

 

Engine will not go to high idle when

1. Poor work lead connection to

 

 

attempting to weld.

 

work.

 

 

 

 

2.

"Contactor" switch is in wrong

 

 

 

 

 

position.

 

 

 

 

3.

Faulty PC board. Low idle speed

 

 

 

 

 

set to low.

 

 

 

 

 

 

If all recommended possible areas

 

Engine will not go to high idle when

1. Auxiliary power load is less than

 

of misadjustment have been

 

using auxiliary power.

 

100 watts.

checked and the problem persists,

 

 

 

2.

Faulty PC board.

Contact your local Lincoln

 

 

 

Authorized Field Service Facility.

Engine does not develop full power.

1. Fuel filter clogged.

2.Fuel lift pump not working.

3.Air filter clogged.

4.Fouled spark plugs.

5.Valves out of adjustment.

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.

RANGER® 250

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Lincoln Electric IM919 manual Problems Possible Recommended

IM919 specifications

The Lincoln Electric IM919 is a highly advanced multi-process welding machine that combines versatility and efficiency, making it a go-to choice for professional welders and fabrication shops. Known for its robust design and user-friendly interface, the IM919 is engineered to perform a wide range of welding processes, including MIG, TIG, and stick, enhancing its application for various projects.

One of the standout features of the IM919 is its intuitive control panel. Designed with a clear digital display, it allows welders to easily select and adjust settings for voltage, wire feed speed, and amperage with precision. This accessibility makes it suitable for both novice and experienced users, providing a seamless experience in the welding process.

Technologically, the IM919 incorporates Lincoln Electric’s advanced welding technologies. The machine employs an inverter-based power supply, which offers a lightweight design and improved energy efficiency. This inverter technology significantly enhances arc stability, ensuring consistent weld quality across various materials, including steel, aluminum, and stainless steel. With a maximum output of around 300 amps, the IM919 is capable of handling heavier gauge materials while maintaining a compact form factor.

Additionally, the IM919 features a synergic control mode, which automatically adjusts parameters based on the selected wire type and diameter. This function aids in optimizing the welding process and minimizes trial and error, allowing for faster, more reliable results. Moreover, the machine is equipped with a powerful cooling system that prevents overheating during extended operation, thus extending its overall lifespan.

Durability and safety are paramount in the design of the IM919, as it comes with an IP23S rating, which means it is protected against water and dust ingress, making it suitable for various working environments. Enhanced safety features, such as overload protection and thermal cut-off, ensure that the welder remains operationally safe even under demanding conditions.

In summary, the Lincoln Electric IM919 is a state-of-the-art welding machine that excels in versatility, user-friendliness, and durability. With its advanced technologies and features, it stands out as an essential tool for professionals seeking quality and reliability in welding applications. Whether in a busy workshop or on a job site, the IM919 delivers outstanding performance, making it a valuable investment for anyone in the welding trade.