A/C compressor question

[ScottH]

Hey guys, just picked up a cherry 76 which runs great. Only problem so far is when you run the a/c the compress squeals whenever it runs. I recall someone telling me that the bearings dry up after a while on them. I was wondering if anyone can tell me if this is true and if so can it be fixed fairly cheaply or will compressor have to be replace?

As always any help or info is greatly appreciated.

Thanks!