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 fixing of a disk 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 (
). Do not lose guides of brake shoes.
Slowly rotating a brake disk, visually check its state from two parties. Wear of a brake disk from blocks has to be in admissible limits. If there are cracks on a disk, the disk is subject to replacement.
Fig. 11.21. Check of a beating of a brake disk
The indicator of hour type check a beating of a brake disk. Fix the indicator of hour type in any convenient place and, rotating a brake disk, define its beating at distance of 12 mm from an outer edge (
). Before check of a beating of a brake disk be convinced that the hug bearing is in good shape.
Check a brake disk for lack of cracks, especially around openings under bolts of fastening of a wheel, and also for lack of excessive wear or mechanical damages. In need of replacement at least of one of disks replace both disks with axes.
Fig. 11.22. Measurement of thickness of a brake disk with use of a micrometer
Measure thickness of a brake disk (
). 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.