Automotive Air Conditioning Information Forum (Archives)

rschmitt2 on Sat June 18, 2011 9:47 AM

I have been using my Mastercool 1.5CFM 90061 vacuum pump for years without problems. Always kept the oil to the full line and changed the oil after each use. But when I used it today, it pulls a good vacuum but apparently overheats after an hour or so and shuts down. Any ideas on what I need to do?

TRB on Sat June 18, 2011 12:50 PM

First off an hour on the pump is plenty of enough time to do what is needed. If you are concerned about the operation. Call Mastercool on Monday.

Mastercool.

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