Ford Escape AC clutch

2005 vintage. Does the system need to be evacuated and recharged to replace the AC clutch. Or is it just a remove and replace without messing with the R134. The wife's AC quit and it looks like the clutch took a dive, it looks pretty shredded, but the system is still has pressure.

another Todd

Thread starter
Lakeside CA and Lake Havasu City AZ
Upon disassembly, found the coil had overheated and was destroyed along with the clutch. I think I will replace the compressor which comes with the clutch, accumulator, and orifice tube as a 3 piece kit that is only about $25 (plus freon and oil) more than just the clutch components. I will also test for voltage drop at the coil when reassembled. Since the compressor did not fail, I should not need to flush out the system, just replace the parts, evacuate, and refill.