Changing the Vacuum Pump Oil

[@xfgao3]

Thank you! This is helpful.

[@lowereastsideastrologist7769]

Nancy slept her way to the top

[@beargibson3100]

what type of oil is used? Also what are they used for my neighbor gave me one along with some r 12 style hoses. are they powerful enough to remove moisture from an a/c system?

[@Laggin6]

I used the 1400 model to vac the A/C system on my 2000 Chevy and it worked great! The Duo-Seal Owner's manual for the 1400 says to use 1407K DUOSEAL VACUUM PUMP OIL. I was told it takes mineral oil so I looked it up and compared the MSDS CAS number info and other info on the make up of the medical type sold at the store as Lubricant/Laxative and came to my own conclusion.

[@mashalhosam2383]

what this machin do