11:12. Check of serviceability of functioning and tightness of the vacuum amplifier of brakes
Check of serviceability of functioning
|
|
- Without starting the engine, several times squeeze out a pedal of a foot brake. Make sure of lack of changes in the size of the reserve course of a pedal (distance between a pedal and a floor).
- Holding a pedal of squeezed out, start the engine. If right after start the pedal slightly "fails", therefore, the vacuum amplifier of brakes works regularly.
|
|
Tightness check
|
|
- Start the engine for a couple of minutes, then muffle. Several times slowly squeeze out a pedal of a foot brake. If at first the pedal course with each squeezing is gradually reduced, however, through three-four musclemen is stabilized, tightness of assembly of the vacuum amplifier is not broken.
- Squeeze out a pedal of a foot brake at the working engine. Holding a pedal of pressed, kill the engine. If 30 seconds of keeping of the pedal pressed its reserve course later does not change, therefore, tightness of assembly of the vacuum amplifier is not broken, - in case of need check serviceability of the backpressure valve of the servo-driver of the amplifier (the purge of the valve has to be possible only in one party). On diesel models check serviceability of functioning of the vacuum pump (see the Section Replacement and check of the vacuum pump of the servo-driver of the brake amplifier (diesel models)). No violations are observed, replace the block of the servo-driver of the amplifier of brakes, - the block is not subject to recovery repair and in case of refusal has to be replaced assembled.
|
|