Fig. 11.41. A gap between a pusher (2) of the vacuum amplifier of brakes and the piston (1) of the main brake cylinder: X = 0 mm
Before installation of the new main brake cylinder check a gap between a pusher of the vacuum amplifier and the piston of the main brake cylinder (see
). If necessary adjust pusher length.
Before installation of the main brake cylinder fill in in it brake fluid and remove air for what fix the main brake cylinder in a vice and close exhaust outlets of the main brake cylinder carving traffic jams.
Fill in pure brake fluid in a tank.
Turn out one stopper and, moving the piston in the main brake cylinder, squeeze out from it air.
Before an otpuskaniye of the piston screw into place a carving stopper.
Repeat operation on removal of air until the opening does not come out only pure brake fluid without vials of air. Repeat operation on removal of air from the main brake cylinder on the second exhaust outlet.
Install the main brake cylinder with new laying on hairpins of the vacuum amplifier of brakes and fix by nuts, having tightened them at this stage by hand.
Turn out carving traffic jams from the main brake cylinder and on their place establish brake tubes.
Finally tighten nuts of fastening of the main brake cylinder.
Fill in brake fluid in a compensation tank of the brake system.
Connect the electric socket to the sensor of level of brake fluid.
Fig. 11.36. Removal of air from the main brake cylinder
Remove the air from the main brake cylinder which got there at installation of brake tubes. Sharply press a brake pedal, turn off half way a nut of fastening of a brake tube to the main brake cylinder at the pressed pedal (
). Continuing to press a pedal, force out the liquid which is in system together with air. After the pedal reaches extreme forward situation and the effluence of liquid will stop, wrap a nut of fastening of a brake tube. Repeat these operations, the air outlet from the main brake cylinder will not stop yet.