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Lincoln Electric SVM187-A service manual Rotor Replacement

Models: SVM187-A

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F-79

TROUBLESHOOTING AND REPAIR

F-79

ALTERNATOR ROTOR REMOVAL AND REPLACEMENT (continued)

Rotor Replacement:

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1.Clean and inspect the armature shaft, the exciter rotor and slip rings. Replace the rotor if it is dam- aged, or if the slip rings are excessively worn.

2.Carefully slide the rotor onto the armature shaft.

NOTE: It is recommended that a new sleeve collar, washer and locking nut be used when installing the exciter rotor.

3.Install the sleeve collar; if necessary, carefully tap the collar into place. Be careful that the collar is not damaged or deformed.

4.Install the washer, then the locking nut. Gently tighten the nut and check that the rotor is fully seat- ed and turning concentric on the shaft.

5.Torque the nut to 175 Ft-Lbs.

6.Bend the washer down to lock the nut in place.

7.Check the rotor air gap. At the smallest point, the gap should be wide enough to allow a .016 thick, ½” wide feeler gage to pass between the rotor and sta- tor.

8.Check the slip rings, brushes and brush holder assembly. These parts must be clean and undam- aged.

9.Mount the brush holder bracket assembly to the exciter stator frame using the screws and nuts that had been removed earlier. The brushes should ride as close as possible to the center of each slip ring. If necessary gently bend the brush holder bracket to adjust the position.

10.Use a long strip is 180-grit sandpaper to seat the exciter brushes. Place the sandpaper strip between the slip rings and the brushes with the abrasive side against the brushes. Pull the sand- paper around the circumference of the slip rings in the direction of rotation only. Repeat this proce- dure until the brushes are contoured to match the radius of the slip rings.

11.Attach the wires to the brush terminals. Proper polarity is important

NOTE: On this machine, and all other Lincoln Electric DC generator machines, the black exciter lead is positive, and the red lead is negative.

12.If necessary, secure the lower front panel.

13.Install the exciter covers and batteries. Reconnect the battery cables; connect the positive cables first, followed by the negative cables.

14.Close the side doors if the work on the machine is finished.

SAE-400 SEVERE DUTY

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Lincoln Electric SVM187-A service manual Rotor Replacement
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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.