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Lincoln Electric SVM187-A service manual Normal appearance, Blackened Commutator

Models: SVM187-A

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F-45

TROUBLESHOOTING AND REPAIR

F-45

WELDING GENERATOR BRUSH AND COMMUTATOR INSPECTION AND

 

SERVICE (continued)

 

 

FIGURE F.16 – GENERATOR COMPONENTS

 

 

SPRINGS

 

 

 

BRUSH HOLDER

BRUSH HOLDER PLATE

 

 

INSULATORS

 

 

 

MOUNTING SCREW

 

 

DRILL MARK

ROCKER

COMMUTATOR

BRUSHES ARMATURE

BRUSH RETAINER

PROCEDURE

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5. Examine the Commutator.

Normal appearance:

The commutator should appear smooth, and have an even brown color where the brushes ride.

Blackened Commutator:

A commutator that appears to have an even black color all around may indicate a grounded armature, shorted weld circuit, a serious overload condition, or out-of- adjustment rocker. It could also indicate the use of poor quality brushes, or brushes that have been conta- minated with oil or some other foreign substance.

•Check the rocker position. Be certain that it is aligned with or very close to the factory drill mark. See Figure 16. IMPORTANT: If the rocker position requires adjustment, do not over tighten the rocker clamping screw. This screw should be tightened to a torque of 70 to 75 Inch-Lbs. Over tightening can destroy the rocker.

•Perform the Weld Circuit Ground and Short Circuit Test.

•If the weld circuit is not grounded or shorted, and poor brush quality or contamination is suspected, replace the brushes and seat them with a commu- tator stone or sand paper.

•If brush quality or contamination is not suspected, clean the commutator by lightly stoning the sur- face.

CAUTION: Stoning the commutator involves pressing an abrasive stone against a spinning com- mutator. This procedure can be haz- ardous if done without proper training, tools and protective equipment. Consult the commutator stone manufacturer’s instructions before attempting this proce- dure.

SAE-400 SEVERE DUTY

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Lincoln Electric SVM187-A service manual Normal appearance, Blackened Commutator
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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.