Here is a chart to help you get an idea of what the pressures should approximately be for r134a, for R-1234yf the readings will be slightly higher on both high and low sides. A general rule of thumb is, if the air becomes cold inside the car then stop added refrigerant, more will ...
SAE AS595E General Requirements for the Design and Testing of Civil Type Pressure Compensated, Variable Delivery Hydraulic Pumps SAE AMS4374A Aluminum Alloy, Extruded Profiles 8.9Zn - 2.2Cu - 2.2Mg - 0.15Zr (7136-T73511) Solution Heat Treated, Stress Relieved by Stretching, Straightened, and O...
Tubing 19Cr - 10Ni High-Pressure Hydraulic, Welded Plus Ultrasonically Tested or Seamless 2023 SAE Cold Drawn, One Eighth - Hard Temper 535 AMS5568J Steel, Corrosion- and Heat-Resistant, Welded Tubing 17Cr - 7.1Ni - 1.1Al Solution Heat Treated, Precipitation-Hardenable 2023 SAE 536 AMS5571K...
Then you record the reading on your air pressure gauge. If your tires are low then you fill air as needed by putting the air nozzle from the compressor on the valve stem for a couple seconds at a time. Make sure to check the air pressure every time you stop for filling. If your tir...