8.5. Prorolling of a hydrodrive of brake system

Hydrodrive of brakes pump over for removal from it air which has got at filling of a hydrodrive by a liquid after its replacement or after repair of knots of a hydrodrive, connected with its depressurization.

Signs of hit of air in a hydrodrive are:

– By unitary pressing a pedal – increase in a course of a pedal, its "softness";

– By numerous pressing a pedal – gradual reduction of a course of a pedal with simultaneous increase in its "rigidity". Before hydrodrive prorolling it is necessary to find out and eliminate the depressurization reason.

GOOD ADVICE If hydrodrive prorolling is connected with repair of any one contour, serviceability of other contour prorolling only a repaired contour is admissible is thus obviously known.

Actions at hydrodrive prorolling completely the same, as at replacement of a brake liquid («Replacement of a brake liquid» see). Distinction that criterion of end of prorolling of the working cylinder is the termination of an exit of vials of air from a hose, instead of occurrence of a fresh brake liquid.