ques. on OBA

[krehel24]

now i know there has been a blue million post's on this, so I am sorry,But tell me if I am right.....A/C com. line from the High side to a tank, filter on the low side with some Ester and I am ready to go ??

 

[Tacoma747]

Pretty much, some have different opinions on what type of oil to use, 3 in 1 oil has done fine for me

 

[upnover]

I use 30 weight in my York. Have read where some folks use slick 50 run it, drain it and let it go. but I do think they do that ever so often.

 

[amcjeepman]

Don't forget the pressure switch on the high side.
I use mobel 1 synthetic. 5w-30

 

[StudNuts]

ester oil is what comes with them from new

 

[krehel24]

Don't forget the pressure switch on the high side.
I use mobel 1 synthetic. 5w-30

Tell me more about this pressure switch

 

[drkelly]

I think I bought this one from Northern Tool. I can't remember. It has been a while.

http://www.northerntool.com/webapp/...tDisplay?storeId=6970&productId=22938&R=22938

I bought the correct fittings and screwed the switch right into a port on the end of the tank.

Danny

 

[upnover]

The pressure switch is just a swich which has constant voltage to it. When the pressure is low it has contacts that close to allow power to run thru it, you have the compressor connected to the other side. When the pressure reaches a certain PSI the contacts open and cuts the power to the compressor. MOst cut off at 125 PSI, and back on at 90 PSI. Some have a bleeder valve or a purge valveon them. This takes the load off the compressor when it reaches cut out PSI. Others have simply one line into the switch, and the compressor will keep pressure on it. Hope this helps

 

[Rich]

Don't put anything real close to the outlet port of the compressor.. they get hot during operation...