Home » car-jacks-trolleys » How to bleed a racing jack? How to bleed a racing jack? Chris 3rd August 2021 How to bleed a racing jack? Shop for Car and Trolley Jacks Step 1 – Remove filler screw Remove the filler screw from the jack. Step 2 – Open release valve Place the handle into the socket and lock by turning the set screw clockwise. Open the release valve by turning the handle anti-clockwise. Step 3 – Pump racing jack Pump the jack handle as if you were going to raise the lifting arm. Pump several times to expel the air from the system. Step 4 – Replace filler screw Replace the filler screw and close the release valve by turning it clockwise with the handle.