Damages of tires because of errors at mounting (assembly damages)

Bead core exploded pumped tires

Modern radial tires for passenger cars mounted exclusively on a safe drive. They are on the shoulders of the rim 1 at the elevation of the entire circumference (Fig. 4.26).

Hamp protects the tire when driving with low air pressure in it from slipping from the shoulder of the rim.

When pumping the tires it may happen that the tire bead is not completely moves through the outer rim Hamp.

In this case there is a risk of excessive stretching of the bead core when pressure is too high, causing it to burst steel filaments partially or completely. Break the bead core is invisible from the outside.

The tire bead core with a torn and shattered frame

Figure 4.27 shows the bus with a torn and destroyed the core framework as a result of excessive stretching during installation.

Damage to the side of a mistaken or wrong tire on the tire changer

The following errors at mounting may cause serious damage to the tires:

- If seaming the upper side to the opposite tire changer tire bead is not completely in the cavity;

- If the wrong was adjusted mounting head;

- If the edge of the mounting roller rolls on the roller-board;

- If worn or sharp guide rollers.

Tyres with a cut side

In such cases, the board, the high voltage can be incised, cut and / or clamped to the wire core (Fig. 4.28).

Often, in the area of damage traces of the beginning and end of contact with the guide roller.