Lincoln Electric SVM187-A service manual Figure F.20 Brush & Spring Winding Insulated Wedge

Models: SVM187-A

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F-61

TROUBLESHOOTING AND REPAIR

F-61

OUTPUT CONTROL UNIT (VARIABLE REACTOR)

INSPECTION AND SERVICE PROCEDURE (continued)

FIGURE F.20 – BRUSH & SPRING

WINDING

INSULATED

WEDGE

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PROCEDURE (continued)

Servicing the continuous control unit:

8.Clean the continuous output control unit by using low pressure air to remove any excess dust and dirt. If the unit is greasy or oily, a more thorough clean- ing will be required. The unit must be clean and completely dry before continuing.

9.Ground test the unit by testing the resistance between the following points:

Chassis ground to winding

Chassis ground to the insulated steel wedge (at the bottom of continuous output control inside diameter)

Insulated steel wedge to the winding. See Figure F.20.

The resistance should be very high, 500,000 (500k) Ohms min.

If the resistance is too low, disconnect the remaining connection cable and look for any connection with chassis ground, including any buildup of conductive dirt contacting the winding. Repeat the above resistance tests. If the low resistance is determined to be within the continuous output control unit, it will need to be replaced.

Use very fine, 400 to 600 grit sand paper or a cylinder hone to clean away any dirt, oxidation, or minor arc pit- ting from the output control bore.

SAE-400 SEVERE DUTY

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Lincoln Electric SVM187-A Figure F.20 Brush & Spring Winding Insulated Wedge, Servicing the continuous control unit

SVM187-A specifications

The Lincoln Electric SVM187-A is a cutting-edge welding machine designed for professional welders and industrial applications. Known for its reliability and performance, it stands out in the competitive welding equipment market. This versatile machine is structured to handle various welding processes, making it a popular choice among users.

One of the primary features of the SVM187-A is its multifunctional capabilities. It supports MIG, TIG, and Stick welding, allowing users to switch between different welding techniques seamlessly. This flexibility makes it suitable for diverse applications, whether working on automotive repairs, metal fabrication, or construction projects. Additionally, the machine is equipped with a robust power output, ranging from low to high amperage settings, enabling users to tackle a wide array of materials, including mild steel, stainless steel, and aluminum.

The SVM187-A incorporates advanced inverter technology, which ensures increased efficiency and reduced energy consumption. This technology leads to a more compact design, making the unit portable and easy to transport. The lightweight construction of the machine does not compromise its durability; it is built with high-quality materials to withstand the rigors of a professional workshop.

Another notable characteristic of the SVM187-A is its user-friendly interface. The intuitive control panel includes digital displays for precise settings adjustments, ensuring accuracy during operation. Beginners and seasoned welders alike can benefit from the clear and straightforward design, reducing training time and enhancing productivity.

Safety features are paramount in the SVM187-A's design. The machine is equipped with thermal overload protection, ensuring that it operates within a safe temperature range to prevent damage and promote longevity. Additionally, it features automatic voltage regulation, which maintains a stable arc even under varying input voltage conditions.

In summary, the Lincoln Electric SVM187-A is a versatile, efficient, and user-friendly welding machine suited for both professional and industrial applications. Its multifunctionality, inverter technology, and robust safety features set it apart from competitors, making it a reliable choice for welders seeking to elevate their craftsmanship while ensuring safety and efficiency. This machine represents the innovation and quality that Lincoln Electric is renowned for in the welding industry.