14.3.3. The brake cylinder

Fig. 306. Details of the brake cylinder of a back wheel: 1 — a dustproof cover; 2 — the piston; 3 — a piston cuff; 4 — a returnable spring; 5 — the case; 6 — the prorolling valve; 7 — a dustproof cap of the valve

To check up the brake cylinder of a wheel on tightness, it is possible at the established cylinder (and the removed brake overlays) cautiously to raise a stupid subject a dustproof cover 1 (fig. 306) and to check up, whether is not present on an inside of traces of a brake liquid. If traces of a brake liquid are found out, it is necessary to remove and repair or replace the cylinder.