Infiniti QX4 service since 1996 of release
1. Introduction
2. Maintenance instruction
3. Routine maintenance
4. Engine
5. Cooling and heating systems
6. Power supply systems and managements
7. Start and charge systems
8. Transmission line
9. Brake system
10. Suspension bracket and steering
10.1. Specifications
10.2. Assessment of the general condition of components of a suspension bracket and car steering
10.3. Check of a condition and replacement of spherical support of a forward suspension bracket
10.4. Check of a condition of steering drafts
10.5. Removal and installation of the cross-section lever of a forward suspension bracket
10.6. Adjustment of a pretightness of stupichny bearings of forward wheels
10.7. Removal, check of a condition and installation of screw springs and rack-mount assemblies of a forward suspension bracket
10.8. Removal and installation of stupichny assembly and rotary fist
10.9. Removal, check of a condition and installation of the forward stabilizer of cross-section stability
10.10. Replacement of stupichny bearings
10.11. Check of a condition of shock-absorbers and springs of a back suspension bracket
10.12. Removal and installation of components and assembly of a back suspension bracket
10.13. Removal, check of a condition and installation of levers of a back suspension bracket
10.14. Removal, check of a condition and installation of screw springs of a back suspension bracket
10.15. Removal and installation of shock-absorbers of a back suspension bracket
10.16. Removal and installation of the back stabilizer of cross-section stability
10.17. Removal, check of a condition and installation of a cross-section jet bar of a back suspension bracket
10.18. Pumping of a hydraulic path of a steering drive
10.19. Checks and adjustments of a steering wheel
10.20. Check of effort of resistance to sliding of a lath of the steering mechanism
10.21. Adjustment of a torque of a provorachivaniye of a leading gear wheel of the steering mechanism
10.22. Check of hydraulic pressure of GUR
10.23. Adjustment of effort of a tension of a belt of a drive of the steering pump
10.24. Removal and installation of reduktorny assembly
10.25. Removal and installation of assembly of the steering mechanism
10.26. Removal and installation of the steering pump
10.27. Removal and installation of a steering wheel
10.28. Removal and installation of assembly of the combined podrulevy switches
10.29. Removal and installation of the lock of ignition / blocking of a steering column
10.30. Removal, check of a condition and installation of a steering column
10.31. Corners of installation of forward wheels
11. Body
12. Electric equipment
 








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10. Suspension bracket and steering

The basis of a design of a forward suspension bracket is made by the racks of MacPherson passed through screw springs. The top ends of a rack enter into the basic bearings fixed on ledges of mudguards in an impellent compartment of the car. The bottom ends of racks fasten to rotary fists. Besides racks the forward suspension bracket is formed by the bottom operating levers, which external ends 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 structure of a forward suspension bracket includes the stabilizer of cross-section stability.


Design of a forward suspension bracket

1 — Remote laying
2 — the Pillow of the top support of a rack
3 — the Arm of the top support
4 — the Basic bearing
5 — the Top saddle of a screw spring
6 — the Buffer of a course of compression
7 — the Screw spring
8 — Poliuretanovaya a tube
9 — rack Assembly
10 — the Collar
11 — the Bottom spherical support

12 — Shplint
13 — the Cross-section lever of a suspension bracket
14 — the Rack of the stabilizer of cross-section stability
15 — the Bar of the stabilizer of cross-section stability
16 — the Plug
17 — the Arm
18 — the Rotary fist
19 — the Lock ring
20 — the Cover of the stupichny bearing
21 — the Power shaft
22 — the Protective cap of a nut


Back suspension bracket

The back suspension bracket is completely organized by means of the rigid not cutting bridge, four levers (two top and two bottom), a cross-section jet bar and the stabilizer of cross-section 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


Steering

All models are equipped with the hydrostrengthened steering mechanism of reechny type connected to rotary fists by means of two cross-section steering drafts. The design of a steering is presented on below-mentioned illustrations:


Design of a steering drive

1 — Assembly of the reechny steering mechanism
2 — Nizhny the kardanny hinge

3 — Reduktornaya assembly
4 — Top kardanny


Design of reduktorny assembly

1 — the Boot
2 — the Epiploon
3 — the Lock ring
4 — the Lock-nut
5 — the Back cover
6 — the Entrance shaft
7 — the Cap
8 — the Forward cover
9 — Sealing laying

10 — Reduktornaya assembly
11 — the Internal nut
12 — the Lock-nut
13 — the Epiploon
14 — the Boot
15 — the Sealing ring
16 — the Persistent bearing
17 — a bearing Holder
18 — the Target shaft


Design of the reechny steering mechanism

1 — the Back cover
2 — the Casing of a leading shaft
3 — Sealing rings
4 — Assembly of a leading gear wheel
5 — the Sealing ring
6 — the Adjusting washer
7 — the Epiploon
8 — the Lock-nut
9 — the Adjusting screw
10 — the Spring
11 — the Holder
12 — Carter of reechny transfer
13 — the Cuff
14 — the Steering rack
15 — the Sealing ring

16 — the Sealing ring
17 — the Sealing ring
18 — the Plug
19 — the Cuff
20 — the Lock ring
21 — the Face cover
22 — the Bandage tape
23 — the Protective cover
24 — the Bandage tape
25 — the Lock plate
26 — the Internal tip of steering draft
27 — Steering draft
28 — the External tip of steering draft
29 — Shplint
30 — Tubes of a hydraulic path


Features of service of components of a suspension bracket and steering

Often in the course of service of components of a suspension bracket and a steering drive it is necessary to face fixture resistant to an otdavaniye.« By Prikipaniye» elements of fixture it is connected with that they are constantly subject to external influences, are in contact to water, dirt, a soot and other promoting development of corrosion by substances. For the purpose of simplification of procedure of an otdavaniye of its such "become attached" fixture it is necessary to impregnate with plentiful amount of getting oil beforehand. Cleaning of open carving parts of fixture by a rigid wire brush also promotes simplification of an otdavaniye of prirzhavevshy nuts. Sometimes, in especially hard cases, for an otpuskaniye "become attached" bolts / nuts it is possible to use a drift. The drift rests against the region of a shliyets of a nut/head of a bolt, then sharp blows are struck to its opposite end with a hammer. Watch that the drift did not break, try not to damage in inexact blows a carving. Quite effective way is also warming up of fixture resistant to an otdavaniye and a surface of a component surrounding it a torch of a blowtorch or a gas torch though originators of this Management and do not recommend to resort without extreme need to such technology in view of its potential danger connected with possibility of ignition and risk of receiving burns. Different extension pieces, collars and trumpet nozzles are intended for increase in a torque at an otpuskaniye of fixture on them. However, remember that it is not necessary to use such intensifying adaptations complete with the drive equipped with "graggers" — the risk of failure of the ratchet mechanism is too great. Sometimes the "become attached" fixture starts to give in after previously slightly will be 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 make its replacement with elements of the same standard size. At assembly tighten elements of fixture of components of a suspension bracket and a steering it is strict with demanded effort.


At all do not undertake attempts of a rikhtovka of the deformed components of a suspension bracket and a steering - replace defective details new!

As procedures of service of components of a suspension bracket are carried out under the car, it is necessary to take care in advance of possibilities of lifting of a vehicle and its fixing in the lifted situation (prepare reliable a jack and props).

At all do not perform any works under the car, fixed in the lifted situation only by means of a jack!


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9.20. Check of serviceability of functioning of the relay of the electromagnetic valve of the hydraulic ABS modulator
on the following page»
10.1. Specifications