7.2.1. Features of a design

Fig. 7.3. Details of a back suspension bracket: 1 – rubber-metal hinge; 2 – arm of fastening of the lever of a suspension bracket; 3 – shock-absorber casing; 4 – compression course buffer; 5 – casing cover; 6 – basic washer; 7 – shock-absorber pillows; 8 – expansion plug; 9 – shock-absorber; 10 – insulating laying; 11 – spring of a back suspension bracket; 12 – connector of levers; 13 – lever of a beam of a back suspension bracket; 14 – arm of fastening of the shock-absorber; 15 – flange; 16 – lever plug

The beam of a back suspension bracket consists of two longitudinal levers 13 (fig. 7.3) and a connector 12 which are welded among themselves through amplifiers.
In a back part arms 14 with eyes for fastening of shock-absorbers and flanges 15 to which fasten bolts of an axis of back wheels together with boards of brake mechanisms of wheels are welded on levers of a suspension bracket. Ahead plugs 16 in which rubber-metal hinges 1 are pressed are welded on levers of a suspension bracket. Through hinges there pass the bolts connecting suspension bracket levers to shtamposvarny arms 2 which fasten to body longerons welded bolts.
Springs of the 11th suspension bracket lean one end on a shock-absorber 9 cup, other end through rubber insulating laying 10 in the support welded on an internal arch of a body.

Fig. 7.4. Fastening of the shock-absorber: 1 – protection cover; 2 – compression course buffer; 3 – basic washer; 4 – insulating laying of a spring; 5 – top basic cup of a spring of a suspension bracket; 6 – pillows of fastening of a rod of the shock-absorber; 7 – lower basic cup of a spring; 8 – shock-absorber; 9 – bolt of fastening of the shock-absorber; 10 – bolt of fastening of an axis of a nave of a wheel; 11 – brake drum; 12 – hug bearing; 13 – wheel nave; 14 – axis; 15 – nut; 16 – lock ring; 17 – adjusting pin

Shock-absorber of a back suspension bracket hydraulic, telescopic, bilateral action. It is attached by a bolt of 9 (fig. 7.4) to an arm of the longitudinal lever of a suspension bracket. The rod is attached to the top support 5 of a spring of a suspension bracket through rubber pillows 6 and a basic washer 3.

Fig. 7.5. Details of the shock-absorber of a back suspension bracket: 1 – compression valve case; 2 – compression valve disks; 3 – throttle disk of the valve of compression; 4 – plate of the compression valve; 5 – spring of the inlet valve; 6 – compression valve holder; 7 – return valve nut; 8 – return valve spring; 9 – plate of the return valve; 10 – washer; 11 – return valve disk; 12 – throttle disk of the valve of return; 13 – piston; 14 – piston ring; 15 – plate of the perepuskny valve; 16 – spring of the perepuskny valve; 17 – restrictive plate; 18 – remote plug; 19 – tank; 20 – rod; 21 – compression buffer support; 22 – nut; 23 – epiploon holder; 24 – protective ring of a rod; 25 – epiploon; 26 – sealing ring of the tank; 27 – the directing rod plug; 28 – cylinder; 29 – rubber-metal hinge

Details of the shock-absorber are shown in fig. 7.5.
In a nave 13 (see fig. 7.4) the two-row radial-stop bearing 12, similar is installed to the hug bearing of a forward wheel, but the smaller size. Unlike a nave of a forward wheel on which the internal ring of the bearing is established with the guaranteed tightness on a nave of a back wheel the bearing 12 on axis 14 has transitional landing.