Check of thickness of brake slips

Brake overlays of forward disk brakes wear out quicker, than back drum brakes. However it is expedient to control, at regular check, brake overlays of all 4 wheels.


1. To mark the provision of a forward wheel concerning a nave with paint in order that the balanced wheel could be established in former situation. To weaken wheel bolts.
2. To install the car on supports, to remove a forward wheel. If slips rather new, check it is possible to make only on one forward wheel. In this case the right forward wheel is removed. Owing to approximately identical wear, it is possible to make the conclusion about thickness of slips and other forward wheel.
3. To check approximately thickness of slips together with a metal plate, behind, through a brake support. In doubtful cases to remove brake shoes and to check thickness (a) a caliper. In the drawing the external brake shoe is shown. To check an internal slip (on a reverse side of a brake disk) in the same way.
4. The limit of wear of forward brake slips is reached if thickness of a brake slip (together with a plate) makes 7 mm.


1. To install the car on supports.
2. To remove a stopper (it is specified by an arrow) on a back brake support and to light in an opening a pocket small lamp. The limit of wear is reached if the slip in this place has thickness of 1,0 mm (without block). In doubtful cases to remove the brake drum and to measure slip thickness. When checking thickness of slips to pay attention to lack of brake fluid or oil on brake slips. In this case immediately to replace brake slips.
3. If the limit of wear is reached, to replace slips. To replace overlays of all bridge at once.

1 mm of wear of brake slips corresponds to about 1000 km of a run, and under adverse conditions of driving. Usually slips last for a long time. At a thickness of overlays of forward disk brakes about 10,0 mm (together with a plate) they are enough still, at least, for 3000 km of a run.