18.7. Back suspension bracket
The independent back suspension bracket is completely collected on a back frame and turns on levers: top cross on which the lower end of the shock-absorber, lower trapetsiyedalny on which the spring, and the back managing director leans is fixed. The operating lever is executed so that the track of back wheels at vertical movement changed in the smallest limits that stabilizes the movement of the car in various road conditions.
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Fig. of a 12-17. Elements of a design of a back suspension bracket:
a:
1 – main reverse gear; 2 – bolt, 40 N · m; 3 – washer; 4 – самоконтрящаяся nut, 40 N · m; 5 – a bolt, 150 N · + to tighten m on a corner 90 °; 6 – the blocking washer; 7 – washer; 8 - washer; 9 – back lower frame; 10 – a bolt with a cylindrical head; 11 – самоконтрящаяся nut, 40 N · m; 12 – washer; 13 - back cross beam; 14 – the combined bolt; 15 – forward support of the main reverse gear; 16 – a bolt with a cylindrical head;
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Fig. 12-17b. Elements of a design of a back suspension bracket:
б:
1 – lower trapezoidal lever; 2 – самоконтрящаяся a nut, 80 N · + to tighten m on a corner 90 °; 3 – washer; 4 – the combined bolt; 5 – washer; 6 – самоконтрящаяся a nut, 80 N · + to tighten m on a corner 90 °; 7 – the combined bolt; 8 – lower support of a spring; 9 – cylindrical spring; 10 – top support of a spring; 11 – the combined bolt; 12 – cross lever; 13 – washer; 14 – самоконтрящаяся a nut, 80 N · + to tighten m on a corner 90 °; 15 – самоконтрящаяся nut, 65 N · m; 16 – shock-absorber; 17 – the combined bolt; 18 – самоконтрящаяся nut, 95 N · m; 19 – eccentric washer; 20 – eccentric bolt; 21 – самоконтрящаяся a nut, 70 N · + to tighten m on a corner 90 °; 22 – eccentric washer; 23 – the operating lever; 24 – bolt; 25 – washer; 26 – back rotary fist; 27 – earring; 28 – самоконтрящаяся a nut, 80 N · + to tighten m on a corner 90 °; 29 – washer; 30 – a bolt with a fillet; 31 – washer; 32 – bolt; 33 – самоконтрящаяся a nut, 80 N · + to tighten m on a corner 90 °; 34 – washer; 35 – самоконтрящаяся a nut, 70 N · + to tighten m on a corner 90 °; 36 – washer; 37 – eccentric bolt;
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Fig. 12-17v. Elements of a design of a back suspension bracket:
в:
1 – самоконтрящаяся nut, 45 N · m; 2 – earring of the stabilizer of cross stability; 3 – самоконтрящаяся nut, 45 N · m; 4 – a bolt with a cylindrical head, 30 N · m; 5 – an arm, 6 – the rubber plug; 7 – stabilizer of cross stability; 8 – back shaft of the drive; 9 – a bolt, 80 N · + to tighten m on a corner 90 °; 10 – back rotary fist; 11 – wheel bearing; 12 – wheel nave; 13 – a bolt with a fillet, 190 N · + to tighten m on a corner 180 °
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Preventions
It is strictly forbidden to perform welding and leveling works on elements of a forward suspension bracket. Surely replace самоконтрящиеся nuts, and also bolts with corrosion traces.
It is forbidden to lift the car for the lower back frame.
At installation it is necessary to use new bolts, nuts and washers.