4.3.9. Removal and installation of a nave of a forward wheel and rotary fist

Fig. 4.37. Details of a nave of a forward wheel and rotary fist: 1 – nave of a forward wheel; 2 – lock ring; 3 – wheel bearing; 4 – rotary fist; 5 – nut of a power shaft; 6 – nave bolt

Lift the car on the elevator and remove a wheel.

Raskontrite nut of a power shaft 1.

Fig. 4.38. Nut of a power shaft

Press and hold a brake pedal. Turn off a nut of a power shaft of 1 (fig. 4.38).

Turn off bolts of the holder of a support.

Fig. 4.39. Removal of a brake disk

Remove a support 1 with the holder (fig. 4.39).

NOTE Suspend the removed support on a hook or a wire 3 so that to prevent an excessive bend or a tension of a brake hose of 4 (fig. 4.39). Do not press a brake pedal at the removed blocks.

Remove a brake disk 2 by means of two bolts on 8 mm (fig. 4.39).

Fig. 4.40. Removal of a nave of a wheel

Remove a nave of a wheel 1 by means of special tools (fig. 4.40).

ATTENTION If the nave of a wheel was removed, replace the wheel bearing new.

Fig. 4.41. A detachment of a tip of steering draft from a rotary fist

Disconnect a tip of steering draft 1 from a rotary fist 2 by means of the special tool (fig. 4.41).

Fig. 4.42. Speed sensor

Take out the sensor of speed of a wheel 1 of a rotary fist (if the car is equipped with anti-blocking system of brakes) (fig. 4.42).

Weaken nuts of an arm of a rack 1.

Fig. 4.43. Removal of bolts of an arm of a rack

Turn off a bolt and a nut 4 spherical hinges 3 (fig. 4.43).

Turn off rack arm bolts, take out them from an arm of a rack and from a rotary fist of 2 (fig. 4.43).

Installation is made as it should be, the return to removal, except for the following.

Fig. 4.44. Installation of a nave and rotary fist

Using the special tool, establish a nave of a wheel 1 on a rotary fist 2, then establish a rotary fist 2 on a rack and the lower spherical hinge (fig. 4.44).

ATTENTION Replace the wheel bearing new every time when the wheel nave is removed.

Establish a bolt of the spherical hinge 1 with a nut 2, as shown in the figure 4.43.

Tighten a nut of the spherical hinge of the lever of a suspension bracket the 2nd nominal force of an inhaling.

Moment of an inhaling of a nut of the spherical hinge of the lever of a suspension bracket (a): 60 N · m.

Tighten a rack arm nut the 3rd nominal force of an inhaling.

Moment of an inhaling of a nut of an arm of a rack (b): 105 N · m.

Install the sensor of speed of a wheel of anti-blocking system of brakes 1 (if the car is equipped with anti-blocking system of brakes).

Moment of an inhaling of a bolt of fastening of the sensor of speed of a wheel of anti-blocking system of brakes (a): 23 N · m.

Fig. 4.45. Installation of the new forelock

Insert a tip of steering draft 1 into a rotary fist 2. Tighten a nut 3 so that openings under the forelock 4 got to nut cuts, but within the nominal force of an inhaling (fig. 4.45).

Moment of an inhaling of a koronchaty nut of a steering rod end of draft (a): 45 N · m.

Install the new forelock 4 (fig. 4.45).

Fig. 4.46. Installation of a support and nut of a power shaft

Establish a support of a brake of 3 (fig. 4.46).

Tighten a bolt of the holder of a support the nominal force of an inhaling.

Moment of an inhaling of a bolt of the holder of a support: 85 N · m.

Press a pedal of a brake and hold it in this situation. Tighten a new nut of a power shaft 1 nominal force of an inhaling.

Moment of an inhaling of a nut of a power shaft (a): 175 N · m.

ATTENTION Never reuse a nut of a power shaft 1.

Tighten a nut of a power shaft 1, as shown in the figure 4.46.

ATTENTION You watch that at a nut raskontrivaniye on its deformable part cracks were not formed. The nut with a crack has to be replaced by new.

Wheel nut inhaling moment: 85 N · m.