Electrical Testing
Tip of the Week: Avoid Stressful Motor Starting stalkerstudent/iStock/Thinkstock

Tip of the Week: Avoid Stressful Motor Starting

When carrying out preventive maintenance, avoid starting a motor under maximum load.

Sometimes when Preventive Maintenance (PM) or Predictive Maintenance (PdM) must be done on a motor, it’s not running. So the maintenance tech must start the motor and run it to complete the maintenance task (or come back later, which often isn’t a good option).

PM work is intended to extend the life of the motor, but the choices made when starting the motor can put it under life-shortening stress. PdM work allows you to predict failure and schedule repairs or replacement, but the choices made when starting the motor could put a “failing” motor firmly into the “failed” category.

One of the most important things to do is avoid starting the motor under maximum load. If you can avoid any load at all, even better. For example, don’t start:

• An air compressor motor in its high-demand loading phase.

• A pump motor if the pump it drives is dead-headed.

• A mixer if the tank is full of slurry, unless that just can’t be avoided.

• A grinder if the feeder chute has material in it.

TAGS: Motors
Hide comments

Comments

  • Allowed HTML tags: <em> <strong> <blockquote> <br> <p>

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.
Publish