How to deal with motor heating hot of vibratory stress relief equipment?

How to deal with motor heating hot of vibratory stress relief equipment?

Temperature is high in summer, VSR motor will be hot after long time uninterrupted operation. It is normal.
Turn off the VSR after completing tasks and cool it with a fan blowing for a while.
When room temperature is not high, but the motor is heat hot at only beginning use or use for a little period time ,
pls observed the VSR controller current ,if more than 2A, shut down and check the motor immediately.