I was able to unscrew the Schrader core. But the tool fails to grip the valve and the valve gets stuck in the ball valve. As someone else mentioned: pressure pushes the valve out until it hits the ball valve and then the freon flows past the stuck valve. I can't remove the tool now because I can't screw the old valve back in.
VIVOHOME 220LB HVAC Electronic Digital Refrigerant Charging Weight Scale β High Precision with Protective Case
9 Review
π UView 560000 Combustion Leak Tester: A Reliable Tool for Efficient Diagnosis
9 Review
π¬οΈ UView Airlift Cooling Checker 550000
9 Review
Lichamp Automotive R1234YF Installer Standard
9 Review