An update to EASA's most comprehensive technical resource is now available for FREE to association members. Reviewed by EASA's Technical Services Committee and revised by staff, important updates have been made to: 

• Section 2: AC Machines
• Section 12: Tech Notes

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Adjusting End Play on Vertical Pump Motors

This new video walks through the steps to adjust and set end play on a typical vertical hollow shaft pump motor. Proper end play adjustment is important to keep the lower bearing from supporting the weight of the rotor and to allow for thermal growth within the motor. The motor in this video has a thrust bearing in the top and a standard ball-type guide bearing in the bottom, which is typical of vertical pump motors. There are other bearing arrangements with somewhat different procedures for setting end play, but here we’ll be working with the most common arrangement and procedure. 

This video and four others can be found now and in the future as separate entries in the Resource Library, on the new Training Video Library page and on the technical support information page. These videos are also available to the public as a special playlist on EASA's YouTube channel.

The electro-mechanical repair industry offers exciting and varied job opportunities for employees that want to be part of an industry that's essential to everyday life. Watch the video to learn about the opportunities available to you.

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After rewinding a two-speed two-winding motor, on rare occasions the low speed will run fine, but the high speed will not. This may be because it locks into a cusp at a speed below the low speed of the motor. Check the stator slot-rotor bar combination to see if a cusp is indicated. If so, drive the shaft above the RPM of the low-speed winding, and energize the high speed. If it runs fine, the high-speed cusp occurring below the RPM of the low speed is deliberate. It likely is done to prevent end users from damaging equipment by trying to skip the low speed and starting on the high speed.

Jan Schmidlkofer
Management Services Committee Chair
K&N an Impel Company

I have fun conversations with our mechanic applicants because they are interested candidates who ask several questions. Why? Because our company advertises a career path that includes apprenticeship training. Although the starting pay seems pretty low, they can see what a potential career with us looks like within 18 months to four years. In essence, we promise to train employees for their lifetime career. What about those who want to move up the ranks within the organization? Our apprenticeship steps describe what advanced skills are available for them to learn after the journey level milestones are met. No matter the experience level of the applicant, the description of career training, advancement and wage progression make for much richer conversations with that individual! An added bonus is EASA’s Electromechanical Repair Technician (ERT) Certificate, which only makes this promise easier to explain and honor.