2. Rotate the valve stem cap counterclockwise with your fingers to remove the cap from the stem. Inside the stem there is a metal pin in the center. This can scope from letting air gone to receive a machine unstuck from mud or releasing air due to over inflating the tire. Letting air away of a motorcar tire is a straight forward manner. Brood over to fill the tire with the Correct size of air vigour and evaluation the air pressure periodically.
Instructions
1. Locate the valve stem on the tire you want to let air out of. The valve stem is the stem that protrudes from the rim of the tire and has a cap on the end.
Van tires and bicycle tires are pneumatic and miss a Correct size of air strength for smooth method. The exactly immensity of recommended air impulse is labelled on the sidewall of the tire. There are times that you must adjust the air impulse in the tire.3. Place the tip of a flat-head screwdriver over the top of the metal pin and press the pin inward. The air will begin to release from the tire through the valve stem.
4. Release the screwdriver from the valve stem and check the tire pressure with a pressure gauge periodically. A simple tire pressure gauge sits over the stem and indicates the amount of air pressure in the tire.
