At work brake pads the brake dust which contains asbestos, unhealthy is formed, therefore at clearing brake pads do not use compressed air and do not inhale a dust.
For clearing of brake mechanisms use only a special cleaner of brakes.
Necessarily replace supports in steam even if one support has failed only
.
THE NOTE
In the presence of leaks of a brake liquid from a support it is recommended to replace it, instead of to repair.