Toyota 4 Runner/Hilux/Surf

1987-1998 of release

Repair and car operation

Тойота 4Раннер
+ 1. The maintenance instruction
+ 2. Maintenance service
+ 3. Engines
+ 4. Systems of heating, ventilation
+ 5. Fuel and exhaust systems
+ 6. Transmissions
- 7. Transmission elements
   7.1. Specifications
   + 7.2. Coupling
   + 7.3. Карданный () a shaft () and карданные hinges
   7.4. Back and forward axes
   7.5. The bearing, an epiploon and полуось the back bridge
   7.6. An epiploon of a reducer of the back bridge and a forward axis
   7.7. The back bridge
   7.8. Forward semiaxes
   7.9. Replacement of covers and SHRUS dismantling
   + 7.10. An electromagnetic drive of a forward leading axis (ADD-system)
   7.11. A forward reducer
+ 8. Brake system
+ 9. A suspension bracket and a steering
+ 10. A body
+ 11. An electric equipment
+ 12. Electroschemes

7.4. Back and forward axes

The back bridge consists of a beam, a reducer and semiaxes. The reducer consists from гипоидной the main transfer and differential. The axis of a leading gear wheel of the main transfer is displaced downwards concerning an axis conducted. Cases of semiaxes впрессованы in картер a reducer also are scalded on a contour.

On all-wheel drive cars the independent forward leading axis which consists of a reducer and 2 semiaxes is established. On each semiaxis there are internal and external SHRUS.

On a part of cars back differential self-blocked with limited проскальзыванием which provides alignment of speeds of rotation of semiaxes at loss of coupling of one of wheels with road.

As a rule the raised noise is not connected with abnormal work of the bridge (axis). To do a conclusion about malfunction of the bridge follows only after an exception of other reasons.

The raised noise can associate with noise from other sources than the bridge (axis):

 – Noise from a road covering. It is excluded by a trip on road with a qualitative covering, or comparison to noise at movement with dispersal or накатом;
 – Noise because of insufficient pressure in tyres or at deterioration of tyres. It is excluded by a trip with dispersal or накатом;
 – Noise from transmission or the engine. It is excluded by listening of work of the engine at the motionless car on those turns on which noise is most expressed.

It is independently possible to perform only those works which maintenance is considered more low. The new bridge steals up on a stamp put by the manufacturer on a beam of the bridge.

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