8. Back suspension bracket
Design and technical characteristics
Back suspension bracket independent, with screw cylindrical springs, diagonal levers, telescopic shock-absorbers and the stabilizer of cross stability.
Springs of a suspension bracket and top basic cups
Depending on model and a complete set on cars springs of two types in combination with the top basic cups of three types of various thickness are established.
Selection of a spring to a basic cup is made at the plant and has to remain during all term of operation in order to avoid deterioration in characteristics of stability and controllability of the car. When replacing a spring or a basic cup surely establish the details identical former.
Characteristics of springs of a suspension bracket
|
Spring type |
Number of a spring
|
Diameter of a wire, mm
|
Draft (P=100 kgfs)
|
Length (P=0 kgfs)
|
|
1 |
123.324.1404 |
15,95 |
18,45 |
355 |
|
2 |
123.324.1504 |
14,95 |
21,5 |
337 |
Characteristics of the top basic cups of springs
|
Alphabetic index |
Number of a cup
|
Thickness of a bottom of a basic cup, mm
|
Quantity of ledges on a cup circle
|
|
a |
115.325.2244 |
9,5 |
1 |
|
b |
115.325.2344 |
14,0 |
2 |
|
with |
115.325.2444 |
19,0 |
3 |
Shock-absorbers
On cars shock-absorbers gas-filled, oil, one-pipe double action are used. They are connected to a body and levers of a suspension bracket.
Control parameters of back shock-absorbers
|
Number of the shock-absorber |
Color marking
|
Exit of a rod, mm
|
Shock-absorber type |
|
|
new
|
admissible
|
|||
|
123.323.1700 * |
One white longitudinal stroke |
0,0 — 2,0 |
32,0 |
Dividing piston |
|
123.323.6000 |
One white cross stroke |
0,0 |
32,0 |
Without dividing piston |
|
123.323.0800 |
One white cross stroke |
105,0 — 107,0 |
82,0 |
|
|
123.320.0413 * |
One white cross stroke |
147,0 — 149,0 |
137,0 |
|
* Meet seldom as a possible complete set.
Additional combination springs/shock-absorbers for various models of cars
|
Engine model |
spring No.
|
shock-absorber No.
|
|
Without adjustment of level |
||
|
"200" |
— |
— |
|
"230" |
123.324.1404 |
— |
|
"250" |
— |
123.326.0600 |
|
"280", "280E" |
— |
123.326.0800 |
|
With adjustment of level |
||
|
"200" |
— |
— |
|
"230" |
123.324.1504 |
— |
|
"250" |
— |
123.320.04113 |
|
"280", "280E" |
— |
— |
Stabilizer of cross stability
|
Characteristic |
Value |
|
Diameter of a bar of the stabilizer, mm |
|
|
13,0 (12,0) * |
|
14,5 (13,0) * |
* Data for a compartment are provided in brackets.
Body height regulator
The device of regulation of provision of a body on height was installed on separate models. It hydraulically regulates height of a suspension bracket of a back part of the car and consists of a hydraulic pump, a tank, two accumulative cameras and the proofreader of provision of a body.
Hydraulic pump
The hydraulic pump of piston type, is given to rotation by a mnogoruchyevy belt of the drive of auxiliary units from a bent shaft.
|
Characteristic |
Value |
|
Working pressure at the speed of a bent shaft of 900±100 min. –1, kgf/cm 2 |
130 |
|
125 |
|
160 |
|
Giving at n=1500 mines-1, l/min |
0,7 |
|
Transfer (engine/pump) |
0,667 |
Accumulative cameras
Working liquid comes to each shock-absorber from the separate accumulative camera (a pressure head tank) in which there is under pressure a working liquid intended for uniform and its smooth giving in shock-absorbers.
|
Characteristic |
Value |
|
Pressure of opening of the valve, кгс.см 2 |
|
|
21 — 25 |
|
15,0 |
Proofreader of provision of a body
The proofreader of provision of a body established between a hydraulic pump and accumulative cameras on the cross stabilizer determines the size of pressure of the working liquid coming to shock-absorbers via accumulative cameras for maintenance of constant height of a back part of a body.
|
Characteristic |
Value |
|
Pressure of opening of the delivery valve, kgf/cm 2 |
30 — 36 |
Working liquid
|
Characteristic |
Value |
|
Filling capacity of a hydraulic system of the leveling system, l |
3,5 |
|
Liquid level difference between the marks "mini" and "maxi" in the probe, l |
about 0,6 |
|
The used liquid |
Aral Vitamol ZH-M or MB hydraulikol 000.989.9103 |
|
Review frequency of oil at the switched-on engine |
each 20000 km |
Angles of installation of back wheels
|
Characteristic |
Value |
|
Disorder |
from -0 °20' to +0 °20' |
|
Convergence of 0,5 mm |
0 °20' — 0 °35' |
Naves of back wheels
The nave of a back wheel is established on the radial-stop ball-bearing of the closed type.
|
Characteristic |
Value |
|
Thickness of a flange of a nave, mm |
10,00 |
|
Beating of a basic surface of a brake disk, no more, than a mm |
0,02 |
|
0,12 |
Moments of an inhaling of the main threaded connections, кгс.м
|
Connection type |
Value |
|
Lower support of the shock-absorber |
4,5 |
|
Fastening of a bar of the stabilizer of cross stability | |
|
1,9 |
|
3,0 |
|
Connecting draft of the stabilizer | |
|
4,5 |
|
3,0 |
|
Racks of system of regulation of provision of a body | |
|
3,0 |
|
4,5 |
|
1,9 |
|
6,5 |
|
4,2 |
|
Pump of system of regulation of provision of a body |
1,2 |
|
Proofreader of system of regulation of provision of a body |
4,5 |
|
Forward fastening of a back suspension bracket | |
|
3,0 |
|
11,9 |
|
Wheel drive shaft bolt |
3,0 |
|
Bolt of fastening of a wheel |
11,0 |