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Jerry,
I've done this on all of my 240's, all 4 of them and yes, you need to remove the bracket's, it just makes the job easier.
On the alternator side, take it all out of the car. Easy, nothing much more to be said, though others will chime in.
On the driver's side, I've found that if you remove the MAF, intake tubing to the throttle body, air filter box that you have way more room to get it out.
If memory serves me correctly I also removed the drives engine mount as that gained me more access to all the bolts.
You will have to remove just 4 bolts for the compressor, and then suspend it so that you don't damage the piping. I failed to do this on my first one and it weakened the ac return line and it finally snapped at a later date, so please do your best to suspend it. You will also have to suspend the power steering pump, but that is not as big of a deal as the compressor.
Once the compressor is out of the way, you will see the 2 bolts that hide behind it.
One thing that I've started doing with my cars, if at all possible, is to go the PNP and remove the part that I want to work on. In this case going to the PNP and removing the power steering pump/ac compressor bracket, then cleaning it up and installing said bushings in it so that when I'm finally doing the replacement, I'm spending less time replacing and all I'm doing now is a swap. This works for most things, however, mind the year of car that you pull things from.
I had a spare one of these lying around 2 years ago when I did this procedure on my 93. Well I get it in and the compressor won't line up at all. I'm like what the heck??? So I pull it out and compare it to the one I pulled out. Sure enough, when Volvo switched to 134a, they changed the compressor and how it sits in this bracket so they made a new one.
So what should have been a quick job turned into a much longer job. There was much cursing that day!
So I know I'm probably glossing over a lot of stuff, but you seem like the kind of guy who can figure it out, and if need be, post back question's when you get stuck, so let us know what other questions you have and we'll answer them.
Matt
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1989 - 245, 1990 - 245, 1991 - 245, and 1993 - 245
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