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OPERATION

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WELDING CONTROLS:

1. OUTPUT CONTROL: The CONTROL dial provides continuous control of the welding current or welding voltage depending on the selected welding mode. This control is not active in the CC-STICK, DOWN HILL PIPE, and CV-WIRE modes when a remote control or wire feeder with remote control is connected to either the 6 pin or 14 pin Amphenol.

2. WELD MODE SELECTOR SWITCH:

(Provides four selectable welding modes)

CV-WIRE DOWN HILL PIPE CC-STICK TOUCH START TIG

3. ARC CONTROL :

The ARC CONTROL WIRE/STICK dial is active in the WIRE, STICK and DOWN HILL PIPE modes, and has different functions in these modes. This control is not active in the TIG mode.

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CC-STICK mode: In this mode, the ARC CONTROL dial sets the short circuit current (arc-force) during stick weld- ing to adjust for a soft or crisp arc. Increasing the number from -10(soft) to +10(crisp) increases the short circuit cur- rent and prevents sticking of the electrode to the plate while welding. This can also increase spatter. It is recom- mended that the ARC CONTROL be set to the minimum number without electrode sticking. Start with a setting at 0.

DOWNHILL PIPE MODE: In this mode, the ARC CON- TROL dial sets the short circuit current (arc force) during stick welding to adjust for a soft or a more forceful digging arc (crisp). Increasing the number from -10(soft) to +10(crisp) increases the short circuit current which results in a more forceful digging arc. Typically a forceful digging arc is preferred for root and hot passes. A softer arc is pre- ferred for fill and cap passes where weld puddle control and deposition (“stacking” of iron) are key to fast travel speeds. It is recommended that the ARC CONTROL be set initially at 0.

CV-WIRE mode: In this mode, turning the ARC CONTROL clockwise from –10 (soft) to +10 (crisp) changes the arc from soft and washed-in to crisp and narrow. It acts as an inductance control. The proper setting depends on the pro- cedure and operator preference. Start with a setting at 0.

RANGER® 250

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Lincoln Electric IM919 manual Welding Controls, Weld Mode Selector Switch, ARC Control
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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.
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