AC compressor cutout

[wrooper]

I have a 1992 300te 4matic w/232k miles and my AC cuts out randomly and will start again when car is restarted.

I have searched and found lots of info for testing a Klima car but I have a MAS and no Klima [I believe]If I should have a Klima and the impressive Klima testing regimen posted by Samuil will work for me where is my Klima?

Does anyone have a testing procedure?

I am leaning toward the compressor speed sensor and have recently replaced the serpentine belt and my tensioner seems fine although from another post I tried to remove the belt [when tensioned] by hand and was able to pull it off the top pulley with two hands. Am I lacking belt tension? The owners manual belt length was 2415mm and the Gatorback belt for my car was 2420mm. Should I tension the belt further past the mark on the housing?

My AC seems to work fine in the driveway but the cooling fans only come on when car is hot,not when compresor engages and I am under the impression that the cooling fan should come on when the compressor engages

My low side pressure is 35lbs at idle and vent temps are around 40 at 2k rpm. I don't have gauges for high side pressure.

Thanks in advance