10. Suspension bracket and steering
The basis of a design of a forward suspension bracket is made by McPherson's racks passed through screw springs. The top ends of a rack enter the basic bearings fixed on ledges of mudguards in a motive compartment of the car. The lower ends of racks fasten to rotary fists. Besides racks the forward suspension bracket is formed by the lower operating levers which external ends by means of spherical support are fixed in assemblies of rotary fists, internal axial bolts (the forward ends) and collars of axial plugs (the back ends) fasten to the car bottom. Besides, the stabilizer of cross stability is a part of a forward suspension bracket.
Design of a forward suspension bracket
Back suspension bracket
The back suspension bracket is completely organized by means of the rigid not cutting bridge, four levers (two top and two lower), a cross jet bar and the stabilizer of cross stability. Racks are created by double-thread telescopic shock-absorbers of a cylindrical form and separately established screw springs.
Design of a back suspension bracket
All models are equipped with the hydrostrengthened steering mechanism of rack type connected to rotary fists by means of two cross steering drafts. The design of steering is presented on the following illustrations:
Design of the steering drive
Design of reduktorny assembly
Design of the rack steering mechanism
Features of service of components of a suspension bracket and steering
Often in the course of service of components of a suspension bracket and the steering drive it is necessary to face fixture resistant to an otdavaniye. By Prikipaniye of elements of fixture it is connected with the fact that they are constantly subject to external influences, are in contact with water, dirt, a soot and the other substances promoting corrosion development. For the purpose of simplification of the procedure of an otdavaniye of its such "stuck" fixture it is necessary to impregnate with plentiful amount of the getting oil beforehand. Cleaning of open carving parts of fixture a rigid wire brush also promotes simplification of an otdavaniye of the rusted nuts. Sometimes, in especially hard cases, for the otpuskaniye which "stuck" bolts / nuts it is possible to use a drift. The drift rests against the region a bolt nut/head vent, then sharp blows with the hammer are struck to its opposite end. You watch that the drift did not break, try not to damage inexact blows a carving. Quite effective way is also warming up of fixture resistant to an otdavaniye and a torch of the blowtorch or a gas torch surrounding it component surfaces though authors of this manual also do not recommend to resort without extreme need to such technology in view of its potential danger connected with a possibility of ignition and risk of receiving burns. Different extenders, collars and pipe nozzles on them are intended for increase in torque at an otpuskaniye of fixture. However, you remember that it is not necessary to use such intensifying devices complete with the drive equipped with "graggers" — the risk of failure of the ratchet mechanism is too high. Sometimes the "stuck" fixture begins to give in after previously slightly it is tightened clockwise. All fixture which otpuskaniye demanded application of extraordinary measures at assembly is subject to replacement!
After an otdavaniye attentively check a condition of fixture and in case of need you make its replacement with elements of the same standard size. At assembly tighten elements of fixture of components of a suspension bracket and steering it is strict with the required effort.
Do not make attempts of a rikhtovka of the deformed components of a suspension bracket and steering at all - replace defective parts new!
As procedures of service of components of a suspension bracket are performed under the car, it is necessary to think in advance of opportunities of lifting the vehicle and its fixing in the lifted situation (prepare a reliable jack and props).
Do not perform any works under the car, the lifted situation fixed in only by means of a jack at all!