Facebook Twitter LinkedIn YouTube Menu Search Arrow Right Arrow Left Arrow Down Arrow Up Home Arrow Next Arrow Previous RSS Icon Calendar Icon Warning Icon
EASA HIRING TECHNICAL SUPPORT SPECIALIST  LEARN MORE

Update now available for EASA Technical Manual

EASA Technical ManualAn 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 update been made to: 

  • Section 8: Bearings

DOWNLOAD FOR FREEBUY A PRINTED COPY

NOT A MEMBER? JOIN US!

Looking For A Challenging Career With Opportunities for Growth?

The electro-mechancial 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.

FIND SERVICE CENTERS NEAR YOU 

Looking for Employees?
If you're an EASA member, use this video and other resources to promote your business to potential employees.

LEARN MORE

New, Job-Specific Training Videos Now Available

 

Having trouble finding time for training? Check out the how-to videos in EASA’s new series Electric Motor Repair Tips.

Four videos are available now (with more planned in the future). 

These videos 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.

Nominate Someone For The EASA Award

EASA AwardDo you know any exceptional industry individuals? If so, nominate them for the Exceptional Achievement Service Award.

The Exceptional Achievement Service Award recognizes individuals who have provided exceptional service to the electrical apparatus sales and service industry. The award is presented at the Association convention.

Deadline: January 1, 2024

LEARN MORE & SEE PAST RECIPIENTS

SUBMIT A NOMINATION

Sean McNamara, EASA Chairman of the Board

Tech Tip: Tachometer Use

Tech Tip - Nov 2023Blake Parker
Technical Education Committee Member
Integrated Power Services, LLC

Tachometers are used to detect shaft speed for a variety of reasons; proper setup improves the quality of the measurement and ensures safe operation. Modern laser tachometers function best when the laser hits the pickup area at an angle other than straight at the centerline at 90 degrees. This is because the shaft does not reflect directly back to the laser at an angle; however, the tach pickup tape will. Pointing the laser directly at the shaft centerline at a 90 degree angle can cause reflections off the shaft thus providing noisy or inconsistent data. It is not recommended to use electrical tape to eliminate shaft reflection as it can come off due to centrifugal force and heat breaking down the adhesive in the tape. In the best case, this causes loss of signal. In the worst case, it can flail around as it comes loose and pulls things into the motor shaft. Another possible cause of erratic readings is fluorescent lighting, which generally shows up at 7200 rpm. This also may be mitigated by changing the angle of the laser so as not to pick up the light.

Tech Tip: Removing Carbon and Improving Low IR Readings in Armature

Blow out the armature with dry low-pressure [< 30 psi (200 kPa)] compressed air to remove the bulk of any dry carbon. Then immerse the armature in a drum of safety solvent. Orient it with the commutator end facing up and use a 1/8” to 1/4” (3-6 mm) pipe with a ball valve and air regulator for about 1 to 3 psi (7 to 21 kPa) to gently bubble the solvent. The agitation action will loosen and flush out the carbon.

An hour is generally long enough to thoroughly clean an armature. Then blow it dry with compressed air and repeat the IR test to ensure the carbon has been flushed out. After the carbon has been satisfactorily removed, use the pressure washer/steam cleaner to remove any residual solvent, and bake it dry.

Upcoming Events

No content

A problem occurred while loading content.

VIEW ALL EASA TRAINING EVENTS
VIEW ALL CHAPTER EVENTS
INDUSTRY-RELATED CONFERENCES
Upcoming Webinars

No content

A problem occurred while loading content.

New Resources
EASA RESOURCE LIBRARY