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Pic. 24. Rear Suspension: 1. Rear wheel hub; 2. Rear suspension arm; 3. Arm of fastening of the suspension arm; 4. Rubber bushing of the hinge of the lever; 5. Spacer sleeve of the hinge of the lever; 6. Bolt of fastening of the rear suspension arm; 7. Body bracket; 8. Support washer for fastening the shock absorber rod; 9. Upper suspension spring support; 10. Spacer. 11. Suspension spring seal; 12. Rear suspension spring; 13. Pillows of fastening of a shock-absorber rod; 14. Buffer compression stroke; 15. Shock absorber rod; 16. Protective casing of the shock absorber; 17. Lower support cup of the suspension spring; 18. Shock absorber; 19. Lever connector; 20. Hub axle; 21. Cap; 22. Wheel hub nut; 23. O-ring; 24. Bearing washer; 25. Hub bearing; 26. Brake shield; 27. Retaining ring; 28. Dirt deflector; 29. Flange suspension arm; 30. Shock absorber bushing; 31. Lever bracket with an eyelet for attaching a shock absorber; 32. Rubber-metal hinge suspension arm.
The car is equipped with a torsion-link suspension of the rear wheels. The suspension guiding device is two trailing arms 2 connected to each other by an elastic connector 19. Since the connector is significantly shifted forward from the wheel axis, the kinematic properties of the suspension correspond to an independent suspension on the trailing arms. The independence of the course of each wheel is ensured by twisting the amplifier, which has a U-shaped section, which has a high bending rigidity and a small torsional one.
Trailing arms 2 are made of pipe. They are welded to the connector 19 through lever reinforcements and together with the connector form a single beam pivotally suspended through brackets 3 to the body. Each suspension arm has a bushing in front, into which a rubber-metal hinge 32 is pressed, consisting of rubber bushings 4 and metal bushings 5. A bolt 6 passes through the spacer sleeve 5, connecting the suspension arm with a stamped bracket 3, which is attached to the body bracket 7 with welded bolts with nuts and washers. A self-locking nut is screwed onto the lever mounting bolt. Brackets 31 with lugs for mounting shock absorbers and flanges 29 for bolting the axle 20 of the rear wheel hub and the rear wheel brake shield are welded to the rear of the levers.
The elastic elements of the suspension consist of a spring 12 and a buffer 14 of the compression stroke. The spring is made of spring steel of round section. It is mounted on a shock absorber 18 and rests with its lower part on the cup 17, and the upper part - in the support 9, welded to the inner arch of the body. The lower support cup of the spring is welded to the shock absorber. An insulating rubber gasket 11 is installed between the spring and the upper support.
The springs of the rear suspension, as well as the front, under a control load are divided into two classes along the length - A and B. Class A springs are marked with yellow paint on the outside of the middle coils, class B - green.
The buffer 14 of the compression stroke is made of polyurethane. It is mounted on the shock absorber rod inside the suspension spring. From above, the buffer rests against the cover of the protective casing 16, and when it is turned on, it rests on the buffer support, which is pressed onto the upper part of the shock absorber reservoir. Annular grooves are made on the outer surface of the buffer, which determine the place of its deformation. The protective cover 16 protects the shock absorber rod 15 and the buffer 14 of the compression stroke from contamination and mechanical damage. The casing is made of rubber, has a corrugated shape to change the length with suspension travel. In the upper part of the casing, an annular groove is made from the inside, into which the beaded part of the steel cover enters. The lower part of the casing, due to its elasticity, is pressed against the support cup of the suspension spring.
The axle 20 of the rear wheel is attached to the flange of the suspension arm with four bolts. Simultaneously with the axle, the shield 26 of the rear wheel brake mechanism is attached with the same bolts. Hub 1 of the rear wheel rotates on the axle on a double-row ball bearing. The hub is attached to the axle with a nut 22 with a thrust washer 24. The nut is fixed on the axle by crimping its belt into the axle groove. The bearing 25 in the hub is fixed with a retaining ring 27. The bearing is of a closed type, with a mortgage "eternal" grease. On the inside, the hub is sealed with two dirt-reflecting rings 28, one of which is welded to the wheel hub, the other to the axle flange. Between them, a labyrinth seal is formed. From the outside, the hub cavity is closed with a cap 21. An o-ring 23 is installed between the hub and the cap. The wheel hub bearing is not lubricated and is not regulated during the operation of the car. The wheel disc is attached to the wheel hub with four bolts.
Shock absorber 18 rear suspension hydraulic telescopic double-acting. The lower eyelet of the shock absorber is attached to the bracket 31 of the lower suspension arm with a bolt with a self-locking nut. The upper shock absorber fastening is pin: the rod is attached to the upper support 9 of the spring through two rubber cushions 13 and a support washer 8. A spacer sleeve 10 is installed between the washer and the cover of the protective casing.