a/c compressor replacement

[BiggDaddy]

Soooo,
2000 XJ with 4.0 and auto.

Compressor starts making an awful grinding noise. So I did the whole long screwdriver from the pulley to the ear thing. Everything sounds good but the a/c compressor, which is awful! It sounds the same on the back side of the compressor, so I've deduced that the whole compressor is bad. It's not just the pulley.

So I've bought a new compressor from NAPA for $200+. Now I'm not exactly sure how to replace it. Shop manual says to have it discharged (which I think I can handle, even if it does involve destroying a tiny little bit of our precious environment). Problem is the instructions say something about oil/lubrication. I'm not sure if I need to fill the compressor, and if so, what to use to do it. I'm going to have to take it to a shop to get it re-charged when I'm done, but I don't want to put it in there and ruin it during the first trip to work.

Coincidentally, I've driven about 150 miles with it grinding and sounding like it does. Not sure how long this will last before the brand new belt breaks on me. Please help....

BiggDaddy