How to Read Tire Pressure Parameters?
1 Answers
You can use a tire pressure gauge to check the specific values of tire pressure. Here is the correct method for using a tire pressure gauge: 1. The central line of the pressure measurement port forms a 90°-180° angle with the axis of the gauge body. The scale is a rectangular prism, with a range of 0.07Wpa-0.4Wpa. Before reading, gently tap the instrument's casing or surface glass with your finger to eliminate friction in the transmission mechanism. 2. When observing, the pointer should overlap with the mirrored pointer. The value indicated by the pointer at this time is the pressure reading, accurate to one decimal place. Read the temperature value on the pressure gauge, also precise to one decimal place. 3. Align and press the measurement end slot of the pressure gauge with the tire valve stem. The pointer on the tire pressure gauge will deflect, and the indicated value is the inflation pressure of the tire. Alternatively, the gauge's indicator rod may be pushed out by the pressure, displaying the inflation pressure. The greater the internal pressure, the more the pointer deflects. Here is additional information: 1. Inner scale values: psi (pounds per square inch); outer scale values: kgf/cm² (engineering atmosphere) = 1.033 standard atmospheres = 1.02 bar. 2. For passenger car tires, the pressure is generally between 2.0 and 2.5 bar, not exceeding 3.5 bar. 3. For light truck tires, typically 6-ply, the pressure is between 3.0 and 3.5 bar; for 8-ply tires, between 4.0 and 4.5 bar; and for 10-ply tires, not exceeding 5.5 bar. 4. For trailer tires, the pressure generally does not exceed 4.2 bar.
