7.1.6. Replacement of the hug bearing of a forward wheel

NOTES Bearings are recommended to be changed on both sides of the car at the same time. When replacing the bearing it collapses and is not subject to reuse.

Establish a forward part of the car on supports, remove a wheel. Turn off two bolts of fastening of a brake support, remove it, without disconnecting a brake hose, and fix in a wheel arch.

Fig. 5.9. Mandrels for a vypressovka of the wheel bearing: And — a mandrel for a nave vypressovka; B — a mandrel for a vypressovka and a press fitting of the hug bearing; In — a mandrel for installation of a cuff

If on the car the anti-blocking system (ABS) is installed, release a wire of the sensor and remove the sensor. Block a wheel nave from rotation. Take out the forelock of a lock-nut and turn off a nut of fastening of a nave. Turn off a nut of fastening of a finger of the spherical hinge of steering thirst for a rotary fist and by means of a stripper take out a hinge finger from a rotary fist. Turn off a nut of fastening of the lower spherical hinge of the lever of a suspension bracket and by means of a stripper take out a hinge finger from a rotary fist. Remove a brake disk. Turn off two bolts of fastening of a rack of a forward suspension bracket to a rotary fist and remove a rotary fist assembled with a nave. Press by means of a mandrel (fig. 5.9, A) a nave from a rotary fist. Using a stripper with captures for external gearing, take an internal ring of the bearing from a nave.

The thin screw-driver take out bearing cuffs. Remove a lock ring of the bearing. Vypressuyte by means of a mandrel (fig. 5.9, B) an external ring of the bearing from a rotary fist. Before installation of the new bearing carefully clear a nave and a seat of the bearing in a rotary fist. Check technical condition of working surfaces — on them there should not be wear tracks and scratches. Apply a thin film of lubricant on an external ring of the new bearing.

Fig. 5.10. A bearing press fitting in a rotary fist: 1 — a mandrel; 2 — the wheel bearing; 3 — a rotary fist; 4 — a support

By means of a press and a mandrel press against the stop the bearing in a rotary fist, resting against an external ring of the bearing (fig. 5.10).

Fig. 5.11. A nave press fitting in a rotary fist: 1 — a mandrel; 2 — the wheel bearing; 3 — a rotary fist; 4 — a support; 5 — a wheel nave; 6 — an external cuff; 7 — an internal cuff

Establish into place a lock ring. Press at first external, then internal cuffs of the bearing by means of a mandrel (fig. 5.9, V), having applied previously a lubricant layer on edges of cuffs. Substitute an emphasis under an internal ring of the bearing and by means of a press press a nave in a rotary fist (fig. 5.11). Carry out other operations as it should be, the return to dismantling, replace everything самоконтрящиеся nuts and forelocks of lock-nuts of fastening of a nave. Observe the determined moments of an inhaling of threaded connections.

After the end of assembly check and if necessary adjust the angles of installation of forward wheels.