A/C clutch slipping

Roy,

Thanks for your response. It is not the tension because I can see the clutch start and stop and the belt keeps turning. Also the clutch plate is 60 thousandth. When it is working right at an idle it is low side 45 high side 225 ambient about 90. I have not been able to catch the pressure when it was not working. Only quits at higher speeds or under load. I can usually start to feel it getting warm then sometimes I smell like the clutch is burning. I can slow down to 25 or 35 and it usually comes back after I turn it off and on again. The original clutch opened about six months ago. I put a second on and it slipped until the bearing burnt out. Now this one is doing the same thing but I have learned to turn it off slow down and cycle it until it works again. I have been tempted to rig up the gauges while driving on the freeway so I can catch it while it's happening.

Thanks. I will set it at, 017 and see if that helps. It only happens once in a while but being from Las Vegas in this heat it is not a good thing.
Thanks