1. The manual adjustment arm is the adjustment arm for manually adjusting the brake gap. It is the most common adjustment arm currently used. It has the advantage of being cheap and easy to maintain, but it also has some shortcomings. Because the brake arm is controlled by the hand to adjust the brake gap, it is easy to appear a large error due to the experience of the person, which seriously affects the driving safety. Moreover, the operator needs to be drilled under the car to adjust, which is very troublesome.
2. Automatic adjustment arm: The braking force is stable and safer. Easy to maintain. The automatic adjustment arm is more suitable for use on trucks equipped with ABS systems than the manual adjustment arm, which can maximize the advantages of the ABS system.