The link didn't work for me just now either, but I found it again.
That link says depending on which compressor is used, it takes between 3 to 5 oz of oil.
According to the pictures I must have the SD series. My Jeep isn't here at the moment - wife has it today - so I can't look at the serial plate to see which one I used on mine.
It must be enough oil - it's lasted over 4 years and filled lots of tires, not just mine but others too. Every time I've checked the crankcase oil it's never been down or low, so apparently it doesn't use any from there. The oil in the top end gets blown out a little at a time. It's only lubricating the reed flapper valve and helps seal the pistons (no rings on them, just a tight fit in the bore.)
I'll find another link too. I downloaded complete rebuild instructions once from the net, I'll try to find it.
I get them from shops and the local dealer that they took off - for free. They replace them when a seal leaks a slow leak, losing refrigerant. But for OBA a slow leak doesn't matter.
I have had a couple that did not pump - I took off the endplate (cylinder head) to access the reed flapper valve. Every time it was a piece of grit trapped under the reed. After cleaning and reassembling they worked fine.
They come with either V belts or Serp belts. You could run a longer Serp on the engine, or, I make a double pulley. I get another alternator Serp pulley, use a lathe to hog out the center of one of them, then weld that one onto the one on the alternator - carefully so as not to create runout. That way you can access the inner pulley to tighten it by reaching through the center.
Then I use a short belt to drive it.
I've installed maybe 5 or 6 so far, always the same way. They've all been in service for quite a while now, no problems.
I went with the Sanden/Mitshbishi because of 3 reasons, small- fits nicely in the room I had, easy to mount, and I had one left over from an AC job.
Here's a link to the repair manual.
pirate4x4.com/.../Sanden SD compressorservice manual.pdf
pg 13 shows how to make your own dipsick.
pg 18 shows the filler hole.
I did a search on Yahoo “Sanden compressor repair manual.” There's lots more info there.
I've been happy with it. And IF you are eliminating your AC - it's a real easy way to go since you already have one mounted and turning.
Adding it to something that already has AC that's to be kept it needs to have a mount built for it. There's 4 long bolts that go through the case on most of them - good place to hook to the new mounts you make.