6.1.10. Dismantling, check, assembly and installation of the main brake cylinder

Fig. 6.32. Main brake cylinder



Removal
Disconnect the socket of the sensor of level of brake fluid.
Disconnect brake tubes from the main brake cylinder. Establish caps on open openings.
Turn off nuts of fastening and remove the brake cylinder.

ATTENTION
Immediately delete the spilled brake fluid from the painted surfaces.

Dismantling
Uncover a tank and merge brake fluid.

Fig. 6.33. Removal of a tank


Unscrew screws of fastening of a tank and by means of the screw-driver take out a tank from consolidations of the brake cylinder (fig. 6.33).

Fig. 6.34. Removal of a lock ring


Remove a lock ring (fig. 6.34).

Fig. 6.35. Removal of a restrictive finger of primary piston


Take out a restrictive finger of primary piston, having pressed on the piston the screw-driver. Remove primary piston (fig. 6.35).

Fig. 6.36. Removal of a restrictive finger of the secondary piston


Take out a restrictive finger of the secondary piston, having pressed on the piston the screw-driver. Remove the secondary piston (fig. 6.36).

NOTE
Primary and secondary pistons are not subject to dismantling.

Check
Check a condition of a mirror of the cylinder (the tease, a rust).
Estimate degree of wear of the cylinder, replace it if necessary.

NOTE
At damage of a mirror of the cylinder replace the main brake cylinder assembled.
Wash out details of the main brake cylinder alcohol.

Assembly
At installation grease all details with pure brake fluid.

Fig. 6.37. Sequence of installation of the piston and springs


Carefully install springs and pistons in the cylinder. You watch that placement of details was correct (fig. 6.37).

Fig. 6.38. Installation of a lock ring


Press the piston the screw-driver and establish a lock ring (fig. 6.38).
Press the piston before full compression of a spring and establish a restrictive finger.
Establish consolidations of a tank.

Fig. 6.39. Tank of the main brake cylinder


Install a tank of the main brake cylinder (fig. 6.39).

Installation
Install the main brake cylinder on the vacuum amplifier of brakes.
Establish the amplifier and the cylinder on a partition of a motor compartment.
Connect brake tubes to the main brake cylinder.
Connect a vacuum hose to the amplifier.
Connect draft of the amplifier to a brake pedal.
Fill a tank of the main brake cylinder with brake fluid. Pump over the brake system.

ATTENTION
The vacuum amplifier of brakes is not subject to dismantling.