Air Conditioner Cool on and off on 1994 Jeep Grand Cherokee

I have bought and replaced the Compressor and the Accumulator. My Jeep A/C cooling is very low or sometimes no cooling. So I don't what could be the problem. If the AC is off it only blows hot air.

Asked by for the 1994 Jeep Grand Cherokee
What are the low and high side pressures? How much refrigerant and what type of refrigerant did you add?