how to replace a clutch on the a c compressor on 1997 Chevrolet S10

when you turn on the a c the clutch doesnt engage

2 answers
There are multiple reasons for the compressor clutch not engaging, due to the complexity of the air conditioning system, and specialized equipment needed for proper diagnosis and repair, I definitely recommend you take your vehicle to a qualified repair facility.
ck frezon in a/c could be low pressure switch on drier cycling switch or clutch coil bad . u have have a tool take the nut out of center of clutch then use tool to pull clutch shoe off