18.1. Forward suspension bracket
The suspension bracket is a link between a body and wheels. Forces influencing wheels are transmitted through it on a body. The suspension bracket serves for decrease in dynamic loadings, reduction of fluctuations of a body, mitigation of blows of wheels about roughness of the road, provides stability and smoothness of the course of the car.
As the bearing element of a forward suspension bracket serves the lower cross beam. The power unit fastens to a beam through the corresponding support.
Forward suspension bracket – independent the McPherson type. The top levers from aluminum alloy are attached to a body via rubber plugs, and to a rotary fist – via spherical hinges. Lower (holding and operating) levers are attached via rubber plugs to the lower frame, and to a rotary fist – via spherical hinges.
The elastic element of a forward suspension bracket is executed in the form of a rack with elastic additional polyurethane elements and limiters of the course of a suspension bracket with the progressive characteristic. The top part of a damping rack fastens to the top arm of a forward suspension bracket, and lower – to the cross lever.
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Fig. of a 12-3. Elements of a design of a forward suspension bracket: 1 – arm; 2 – the directing plug; 3 – washer; 4 – самоконтрящиеся nuts, 100 N · m; 5 – самоконтрящиеся nuts, 20 N · m; 6 – washer; 7 – самоконтрящаяся a nut, 50 N · + to tighten m on a corner 90 °; 8 – top back lever; 9 – bolt; 10-top forward lever; 11 – damping rack; 12 – bolt; 13 – nut, 100 N · m; 14 washer; 15 – the support rack, was not established on cars with numbers of the chassis from 4DZ TN 006 420 to 4DZ XN 5 000; 16 – suspension bracket support; 17 – ring; 18 – forward longitudinal beam; 19 – bolt; 20 – bolt; 21– combined bolt, 7 N · m; 22 – a bolt with a tetrahedral head; 23 - самоконтрящаяся nut, 50 N · m; 24 – tip of steering draft; 25 – rotary fist; 26 – a bolt with a fillet, 190 N · + to tighten m on a corner 180 °; 27 – bolt, 10 N · m; 28 – antisplash casing; 29 - tightening plug; 30 – ABS sensor; 31 – shaft of the drive of forward wheels; 32 – bolt, 70 N · m; 33 – самоконтрящаяся nut, 40 N · m; 34 – lower forward frame; 35 – самоконтрящиеся nuts; 36– combined bolt, 90 N · + to tighten m on a corner 90 °; 37 – the holding lever; 38 – plate of fastening of the lower frame; 39 – washer; 40 bolt, 25 N · m; 41 – a bolt, 150 N · m + to tighten on Hugo l 90 °; 42 – bolt; 43 – washer; 44, 45– nuts with a fillet, 100 N · m (for an aluminum rotary fist of 125 N · l); 46 – a nut, 90 N · m; 47 – stabilizer earring; 48 – the operating lever; 49 – clip; 50 – самоконтрящаяся a nut, 40 N · + to tighten m on a corner 90 °; 51 – a bolt, 150 N · + to tighten m on a corner 90 °; 52 – lock washer; 53 – washer; 54 – the combined bolt, 90 N · + to tighten m on a corner 90 °; 55 – stabilizer of cross stability; 56 – самоконтрящаяся nut
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Fig. 12-3b. Elements of a design of a forward suspension bracket: 1 – arm; 2 – the directing plug; 3 – washer; 4 – самоконтрящиеся nuts, 100 N · m; 5 – самоконтрящиеся nuts, 20 N · m; 6 – washer; 7 – самоконтрящаяся a nut, 50 N · + to tighten m on a corner 90 °; 8 – top back lever; 9 – bolt; 10-top forward lever; 11 – damping rack; 12 – bolt; 13 – nut, 100 N · m; 14 washer; 15 – the support rack, was not established on cars with numbers of the chassis from 4DZ TN 006 420 to 4DZ XN 5 000; 16 – suspension bracket support; 17 – ring; 18 – forward longitudinal beam; 19 – bolt; 20 – bolt; 21– combined bolt, 7 N · m; 22 – a bolt with a tetrahedral head; 23 - самоконтрящаяся nut, 50 N · m; 24 – tip of steering draft; 25 – rotary fist; 26 – a bolt with a fillet, 190 N · + to tighten m on a corner 180 °; 27 – bolt, 10 N · m; 28 – antisplash casing; 29 - tightening plug; 30 – ABS sensor; 31 – shaft of the drive of forward wheels; 32 – bolt, 70 N · m; 33 – самоконтрящаяся nut, 40 N · m; 34 – lower forward frame; 35 – самоконтрящиеся nuts; 36– combined bolt, 90 N · + to tighten m on a corner 90 °; 37 – the holding lever; 38 – plate of fastening of the lower frame; 39 – washer; 40 bolt, 25 N · m; 41 – a bolt, 150 N · m + to tighten on Hugo l 90 °; 42 – bolt; 43 – washer; 44, 45– nuts with a fillet, 100 N · m (for an aluminum rotary fist of 125 N · l); 46 – a nut, 90 N · m; 47 – stabilizer earring; 48 – the operating lever; 49 – clip; 50 – самоконтрящаяся a nut, 40 N · + to tighten m on a corner 90 °; 51 – a bolt, 150 N · + to tighten m on a corner 90 °; 52 – lock washer; 53 – washer; 54 – the combined bolt, 90 N · + to tighten m on a corner 90 °; 55 – stabilizer of cross stability; 56 – самоконтрящаяся nut
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Fig. 12-3v. Elements of a design of a forward suspension bracket: 1 – arm; 2 – the directing plug; 3 – washer; 4 – самоконтрящиеся nuts, 100 N · m; 5 – самоконтрящиеся nuts, 20 N · m; 6 – washer; 7 – самоконтрящаяся a nut, 50 N · + to tighten m on a corner 90 °; 8 – top back lever; 9 – bolt; 10-top forward lever; 11 – damping rack; 12 – bolt; 13 – nut, 100 N · m; 14 washer; 15 – the support rack, was not established on cars with numbers of the chassis from 4DZ TN 006 420 to 4DZ XN 5 000; 16 – suspension bracket support; 17 – ring; 18 – forward longitudinal beam; 19 – bolt; 20 – bolt; 21– combined bolt, 7 N · m; 22 – a bolt with a tetrahedral head; 23 - самоконтрящаяся nut, 50 N · m; 24 – tip of steering draft; 25 – rotary fist; 26 – a bolt with a fillet, 190 N · + to tighten m on a corner 180 °; 27 – bolt, 10 N · m; 28 – antisplash casing; 29 - tightening plug; 30 – ABS sensor; 31 – shaft of the drive of forward wheels; 32 – bolt, 70 N · m; 33 – самоконтрящаяся nut, 40 N · m; 34 – lower forward frame; 35 – самоконтрящиеся nuts; 36– combined bolt, 90 N · + to tighten m on a corner 90 °; 37 – the holding lever; 38 – plate of fastening of the lower frame; 39 – washer; 40 bolt, 25 N · m; 41 – a bolt, 150 N · m + to tighten on Hugo l 90 °; 42 – bolt; 43 – washer; 44, 45– nuts with a fillet, 100 N · m (for an aluminum rotary fist of 125 N · l); 46 – a nut, 90 N · m; 47 – stabilizer earring; 48 – the operating lever; 49 – clip; 50 – самоконтрящаяся a nut, 40 N · + to tighten m on a corner 90 °; 51 – a bolt, 150 N · + to tighten m on a corner 90 °; 52 – lock washer; 53 – washer; 54 – the combined bolt, 90 N · + to tighten m on a corner 90 °; 55 – stabilizer of cross stability; 56 – самоконтрящаяся nut
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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 forward frame.
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Moments of an inhaling, N · m
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Forward suspension bracket
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The shock-absorber to the lower cross lever
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90
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The shock-absorber to the top arm
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20
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Nuts of hinges of the top levers to a rotary fist
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40
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The lower cross lever to a rotary fist
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100
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The lower longitudinal lever to a rotary fist
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100
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Brake board to a rotary fist
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10
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Brake support to a rotary fist
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190
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Bolts of fastening of the lower frame
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150 + to tighten on a corner 90 °
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Bolts of fastening of the lower levers to the lower frame
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90 + to tighten on a corner 90 °
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Bolts of fastening of a plate of support of the lower frame
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25
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Earring to the stabilizer of cross stability
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90
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Earring to the cross lever
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70
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Bolts of fastening of an arm of the stabilizer
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20
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Back suspension bracket
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Nuts of the top fastening of the shock-absorber to a body
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25
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Bolt of the lower fastening of the shock-absorber to the cross lever
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65
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Nut of fastening of the fuel tank
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25
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Nut of fastening of the cross lever
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80 + to tighten on a corner 90 °
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Eccentric bolt of fastening of the cross lever
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95
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Bolts of fastening of the lower back frame
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150 + to tighten on a corner 90 °
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