NOTE Brake disks are not subject to grinding. At considerable wear or existence deep рисок replace disks. When replacing brake disks, replace them complete with tromozny blocks.

Install the car on the two-rack-mount elevator.

Unblock a steering wheel.

Remove forward wheels.

Fig. 6.66. Removal of fastening of a guide of blocks: 1 – fastening bolts

Turn out two bolts of fastening of a guide of blocks (fig. 6.66).

Suspend a brake bracket assembled from a guide of blocks.

Establish a micrometer for measurement of thickness of a brake disk (fig. 6.67).

Fig. 6.67. Installation of a micrometer for measurement of thickness of a brake disk: 1 – micrometer

Fig. 6.68. Points of measurement of thickness of a brake disk

Measure thickness of a brake disk one after another in four points shown in the figure 6.68 on a circle (through 90 °).

Standard thickness of forward brake disks: 22 mm (cars with the K4J engine) and 24 mm (cars with K4M, F4R engines).

If thickness is less than specified – replace disks.

Remove a guide of blocks.

Fig. 6.69. Removal of fastening of a brake disk: 1 – fastening bolts

Turn off two screws of fastening of a brake disk (fig. 6.69).

Remove a brake disk.

Check whether there is no corrosion, wear and damage on internal walls of the cylinder. If necessary replace the cylinder case. The insignificant defects caused by corrosion or foreign particles can be eliminated with grinding of a surface a small emery cloth. Check whether there is no corrosion, wear and damage on the surface of the piston, on the directing finger and its boot, and a takzhena of a surface of a brake disk. If necessary replace the corresponding component.

Clear guides of blocks and a bracket.

Installation is made as it should be, the return to removal.

Tighten the required moment:

– screws of fastening of a brake disk (15 N · l);

– bolts of fastening of a guide of blocks (105 N · м).

Before installation apply on a carving of bolts of fastening of a guide of blocks structure of FRENEBLOC (or its equivalent).

Establish wheels.

Tighten the required moment 105 N · m bolts of fastening of wheels.