I'm trying to get my A/C system working in a small farm tractor and there is some confusion on compressor oil. The tractor uses a small Harrison/Delphi model SP-10 ten piston compressor.
The plate on the side of the compressor specifies Dow Chemical UCON 244 oil which I think is a PAG100. The Dow data sheet says 100 viscosity at 40 degrees C.
The service manual for the tractor specifies PAG46.
Which one should I use????
The quantity of oil on the compressor information plate is 8 ounces which would probably fill the compressor to the top. Do I pour all 8 ounces into the compressor and will most of it leave the compressor and distribute into the rest of the system?
Thanks for any help
I would use PAG 100 and adding the 8 ounces to the compressor is fine. Juts turn the clutch hub a few times to move a little around before charging.
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