Tighten the parking brake and block back wheels an emphasis.

Weaken nuts of fastening of a forward wheel. Lift a forward part of the car and establish it on support. Remove a forward wheel. Screw nuts of fastening of a wheel on hairpins, having enclosed under them thick washers, for disk fixing for the period of check.

Fig. 11.20. An arrangement of bolts of fastening of a bracket of a support of a forward brake to a rotary fist

Remove a support of a forward brake, without disconnecting from it a brake hose. A soft wire tie up a support to a forward rack. Turn out two bolts of fastening of a bracket of a support to a rotary fist (fig. 11.20) . Do not lose directing brake shoes.

Slowly rotating a brake disk, visually check its condition from two parties. Wear of a brake disk from blocks should be in admissible limits. If there are cracks on a disk, the disk is subject to replacement.

Fig. 11.21. Check of palpation of a brake disk

The indicator of hour type check palpation of a brake disk. The indicator of hour type fix in any convenient place and, rotating a brake disk, define its palpation at distance of 12 mm from external edge (fig. 11.21) . Before check of palpation of a brake disk be convinced that the bearing of a nave is in a good condition.

Check a brake disk on lack of cracks, especially round openings under bolts of fastening of a wheel, and also on lack of excessive wear or mechanical damages. In need of replacement at least one of disks replace both disks with axes.

Fig. 11.22. Measurement of thickness of a brake disk with micrometer use

Measure thickness of a brake disk (fig. 11.22) . Value of the minimum admissible thickness of a brake disk is beaten out on disk inside. For measurement of thickness of a brake disk it is recommended to use a micrometer.