4-9. Adjusting MIG Weld Puddle Consistency

Y Stop engine.

Stabilizer DC-Z is factory connected to suit most MIG (Wire Welding) applications.

To change MIG weld puddle consis- tency, proceed as follows:

Remove lower front panel and side panel.

Starting from center of DC-Z, the three leads 79 will be referred to as inner, middle, and outer.

1 Stabilizer DC-Z

2 Inner Lead 79

3 Middle Lead 79

4 Outer Lead 79

5 Wire (CV) Weld Output

Terminal

Middle lead 79 is connected to Wire (CV) weld terminal at the factory. Disconnect middle lead 79 from terminal.

To wet out weld puddle:

Remove insulation sleeve from in- ner lead 79. Connect inner lead 79 to Wire (CV) terminal, reusing hardware.

To stiffen weld puddle:

Remove insulation sleeve from out- er lead 79. Connect outer lead 79 to Wire (CV) terminal, reusing hardware.

Slide sleeves over unused leads 79, and secure with cable ties. Reinstall panels.

1

4 3 2

5

79

Tools Needed:

3/8, 7/16 in

ST-801 944-C / Ref. ST-189 925-A

OM-486 Page 17

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Miller Electric 251 NT Adjusting MIG Weld Puddle Consistency, Stop engine, To wet out weld puddle, To stiffen weld puddle
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251 NT specifications

The Miller Electric 251 NT is a highly regarded multi-process welding machine known for its versatility and advanced features, making it an ideal choice for professionals in various industries. With its robust construction and user-friendly interface, the 251 NT provides an efficient solution for MIG, TIG, and Stick welding applications.

One of the main features of the Miller Electric 251 NT is its impressive output range, which allows for welding on a variety of materials and thicknesses. It delivers up to 250 amps of power, enabling users to tackle both thin and thick metals with ease. Additionally, the machine is equipped with an Auto-Set feature, which automatically adjusts the welding settings according to the material thickness and type. This eliminates the guesswork, significantly enhancing productivity and reducing setup time.

Another noteworthy aspect of the Miller Electric 251 NT is its inverter technology. This advanced technology provides a compact, lightweight design without compromising performance. Inverter technology allows for greater energy efficiency, resulting in reduced operational costs over time. The 251 NT also features a Duty Cycle of 60% at 250 amps, which means it can handle demanding tasks while maintaining optimal performance.

The Miller Electric 251 NT is designed with user convenience in mind. The intuitive digital display offers clear visibility of the settings, allowing welders to make quick adjustments. Furthermore, the machine includes a built-in memory function to store frequently used parameters, enhancing workflow efficiency.

Safety is a key component of the 251 NT's design. It comes equipped with various safety features, including overload protection and a thermal overload warning system. These features ensure that the machine operates within safe limits, minimizing the risk of damage and ensuring longevity.

In terms of portability, the Miller Electric 251 NT's lightweight design and integrated handle make it easy to transport between job sites. The durable housing protects the internal components, making it suitable for rigorous use in demanding environments.

Overall, the Miller Electric 251 NT offers a combination of power, flexibility, and ease of use, making it a top choice for welders looking to enhance their capabilities across multiple welding processes. Whether in a professional shop or on a construction site, the 251 NT stands out as a reliable and efficient welding solution.
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