5.1.7. Dismantling, assembly and installation of the steering mechanism

Fig. 5.35. Components of the steering mechanism

Fig. 5.36. Fixing of the steering mechanism in a vice

Establish on sponges of a vice of a slip from soft metal (brass or aluminum plates) for prevention of damage of the steering mechanism and fix last (fig. 5.36) in a vice.

ATTENTION At installation of the steering mechanism in a vice fix it so that sponges of a vice совмещалисьс an installation site of a bracket of fastening. Other way of fastening in a vice can lead to damage of the steering mechanism.

Fig. 5.37. Rotation of a gear wheel of the reechny steering mechanism

For check of the general moment of rotation of a leading gear wheel of the steering mechanism by means of a special key rotate a gear wheel of the reechny steering mechanism within one turn during 4–6 about (fig. 5.37).

General moment of rotation of a leading gear wheel of the steering mechanism (nominal rate): 0,6–1,3 N · m.

NOTE Measure the moment of rotation of a conducting gear wheel at a full speed of a steering rack.

If the measured size does not correspond to nominal rate, at first adjust the provision of a cover of an emphasis of a steering rack and then again check the general moment of rotation of a leading gear wheel of the steering mechanism.

If it is not possible to adjust the general moment of rotation of a leading gear wheel, check an emphasis cover, a spring of an emphasis and an emphasis of a steering rack and if necessary replace details.

Make 10 strong turns of a tip of steering draft.

Fig. 5.38. Measurement of resistance to rotation of the hinge of steering draft

By means of a spring dynamometer measure resistance to rotation of the hinge of steering draft (fig. 5.38).

Moment of resistance to rotation of the hinge of steering draft (nominal rate): 8–22 N (2–5 N · м).

If the measured size exceeds nominal rate, replace steering draft assembled.

ATTENTION If the measured size less nominal rate, however steering draft turns smoothly, without excessive люфта, such tip is suitable for operation. If the measured size less than 4,3 N (1 N · м), replace steering draft assembled.

Check a protective cover on absence of damages or condition deterioration.

Check correctness of fastening of a protective cover.

If обнаружны defects of a protective cover, replace it new.

Fig. 5.39. Removal of a tip of steering draft

Remove a tip from steering draft (fig. 5.39).

Fig. 5.40. Removal of a protective cover of the spherical hinge

Clamp a tip of steering draft in a vice, then remove a protective cover of the spherical hinge (fig. 5.40).

Fig. 5.41. Removal of a big collar of fastening of a protective cover of steering draft

Remove a big collar of fastening of a protective cover of steering draft (fig. 5.41).

Fig. 5.42. Removal of a small collar of fastening of a protective cover of steering draft

Remove a small collar of fastening of a protective cover of steering draft (fig. 5.42).

Pull together a protective cover from the case of the steering mechanism on steering draft.

NOTE At replacement of a protective cover be convinced of lack of a rust on a lath of the steering mechanism.

Dis