WATER in oil cooled pump

[Bruce Stuart]

I am changing the oil on my airblow oil cooled vacuum pump and discovered water frozen in the oil filter. I am wondering if what to do about it and if it means there is water in the rest of the system and if it will affect the vacuum and what i can do about the water

[Potters3]

There will be water thru the whole system. If there is any ice in the pump head it will break on start up. I have a 3hp airblow. Heat the pump up for a few days to completely thaw before trying to run. Drain all fluid out, change filter and oil. Mine stays in a heated room that I keep just above freezing thru the winter, a week to 10 days before I am going to need I turn the heat up to 80 to make sure it is good.

[maple flats]

Pumps and ice do not play well together. As strong as the pump is, the ice can break it.