Reasons for Unqualified Unbalance Rate of the First Axle
1 Answers
The main reason for the unqualified unbalance rate of the first axle is the issue with the maximum difference in the process difference between the first and second axles. It is likely that the brake calipers of these two wheels are problematic and not sensitive enough. When lightly pressing the brake, the two wheels on the right side hardly generate any braking force, but when pressing fully, the data appears normal. Below is additional information: Inspection Reasons: The first axle uses disc brakes. Check the friction disc and friction device, as well as the master cylinder and wheel cylinders. Adjust the braking without requiring lock-up, but the braking force on the left and right wheels must be balanced. Otherwise, the braking force may pass, but the unbalance rate will not, leading to an overall failure. Main Reasons: The unbalance of the first axle means the braking force deviation between the two wheels of the first axle is too large, exceeding the reasonable range. Normally, the braking rate of the first axle should be greater than 60%, with a deviation less than 24%. Process Difference During Braking: The process difference during braking of the first axle is currently the standard for the unbalance rate in vehicle annual inspections, calculated as the larger value minus the smaller value. Excluding the maximum braking force of the first axle, the braking rate of the first axle is 60%, with an unbalance rate of 24%; the braking rate of the second axle is 60%, with an unbalance rate of 30%.
