Checking the efficiency of the braking system (Focus 2)

It is advisable to check the efficiency of the brake system on special brake stands (similar to those used by the State Traffic Safety Inspectorate during the annual technical inspection of cars). In extreme cases, an approximate comprehensive assessment of the brake system can be performed on a flat horizontal area closed to traffic. It is desirable that the area be evenly covered with a thin layer of sand.

The check described below can only be carried out on cars that are not equipped with ABS. If your car is equipped with an anti-lock system, it is better to contact a service station.

With the car unloaded (only the driver in the car), accelerate in first gear to a speed of approximately 15 km/h. Press the brake pedal sharply to lock the wheels and do not release it until the car comes to a complete stop.

Get out of the car and inspect the brake marks left by the car's wheels. If the brake marks of the front wheels are slightly longer than the rear ones, and the length of the marks on the left and right are the same, then the brake system is in good working order. Otherwise, repair the system.



Fig. 4.4. Checking the efficiency of the braking system

NOTE: The following relationships must be observed (Fig. 4.4):

• L lion lane = L right. lane.
• L lion rear = L right. rear.
• L per. > L rear.

WARNING: Do not overuse this rating as it is associated with increased one-sided tire wear.