Press a brake pedal some times at the idle engine to create in cavities of the vacuum amplifier the identical pressure close to atmospheric pressure.
Press a pedal of a brake prior to the beginning of notable resistance and measure distance which there has taken place a brake pedal (fig. 11.46
). The Free wheeling of a pedal of a brake should be in limits of 1-6 mm.
If the free wheeling of a pedal of a brake differs from demanded value, check up distance And (fig. 11.45
) between a carving part of the case of the switch and the terminator of a course of a pedal of a brake.