9f7e9f0f Check of back brake shoes

1. Record forward wheels, lift a back part of the car, record on supports and remove back wheels.
2. Control of thickness of a brake shoe can be carried out through a support. If the brake overlay of a block is worn-out to minimum admissible thickness, then replace all four blocks in a set.
3. For complete control remove and carefully clear brake shoes. It is at the same time possible to check action of a support and both parties of a brake disk.