You don't have to start a new question. Just respond to the old one.
It's going to be difficult for me to do anything for you besides advise you to let a professional look at it. The compressor is a large unit driven by the belts but if you can't identify it, any other instructions will be futile.
This is a generic view of a set of pulleys and one of them would be a compressor but every engine varies.
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