Robinair 34288NI, 75 degrees, fan clutch will hold a shop rag up, didn't have a helper to check 1500rpm, the low wasn't higher I guess (just had the appearance with the different scaling of gauges). Do pressure switches go bad ever requiring more pressure?

Also I only got .5oz of oil from the recovery, I tried adding more to the compressor but it wouldn't take any. I have the Cummins and the ac compressor sits at the bottom of the engine, meaning where the seal was leaking was the low point of the system. Thought I might have lost some oil and from th...

1999 Dodge Ram, thanks for the help with this. Ac had been great since I changed the pump 10yrs ago until this spring. Quits working, top it off with a can at home and it keeps going. Finally got worse and I put some dye in it and lost pressure within 24 hrs. But I found the seals on the compressor ...