1999-2003 of release
Repair and operation of the car
Subaru of Legasi, Autbek
+ Cars Subaru Legacy, Outback
+ Operation manual
+ Routine maintenance
+ Cooling systems, heating
+ Power supply system and release
+ Electric equipment of the engine
- Manual box and differential
The mechanism of blocking of inclusion of a reverse gear - the device and the principle of functioning
Interaxal differential - the device and the principle of functioning
Removal and installation of transmission assembly
Check of a state and replacement of elements of support of a suspension bracket of transmission assembly
Check of a state and replacement of an epiploon
Removal, installation and check of a condition of sensors switches
Removal, installation and check of a condition of the sensor of the speed (VSS)
Preparation for performance of capital repairs of RKPP
Removal, service and installation of a transfer case and lengthening of transmission
Removal, service and installation of the leading gear wheel of the distributing mechanism
Removal, service and installation of the conducted gear wheel of the distributing mechanism
Removal, service and installation of interaxal differential
Removal, service, installation and adjustment of assembly of the mechanism of blocking of inclusion of a reverse gear
Removal, installation and check of a condition of a case of transmission assembly
Removal, service, installation and adjustment of primary shaft of RKPP
Removal, service and installation of an entrance shaft of RKPP (model with an additional two-level reducer)
Removal, service and installation of assembly of a shaft of the leading gear wheel of the main transfer of the drive of forward wheels
Removal, service, installation and adjustment of forward differential
Removal, installation and check of a condition of a gear wheel of the drive of a speedometer
Removal, installation and adjustment of an intermediate gear wheel of a reverse gear
Removal, installation, check and adjustment of assembly of gear wheels of a two-level reducer
Removal, check of a state and installation of forks and rods of gear shifting
Removal, service and installation of the lever of gear shifting of RKPP
Removal, service and installation of the lever of switching of the Hi/Lo modes of an additional two-level reducer
Removal, service and installation of hummock draft of the drive of switching of the modes of a two-level reducer
+ Automatic transmission
+ Brake system
+ Suspension bracket and steering
+ Onboard electric equipment
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Interaxal differential - the device and the principle of functioningDesign of interaxal differential with the viscous coupling
Design of the viscous coupling of interaxal differential
The interaxal differential is executed according to the planetary symmetric scheme on conic gear wheels. Design feature used on the models of interaxal differential considered in the present manual is use of the viscous coupling.
The interaxal differential carries out two functions: distribution of a torque of the engine between power shafts of lobbies and back wheels and repayment of distinction in speeds of rotation of lobbies and back wheels.
The torque of the engine is transferred to interaxal differential from the conducted (secondary) shaft of transmission, being distributed then between shaft of the leading gear wheel of the main transfer (directly through conic gear wheels) and cardan in bulk (through the leader and conducted gear wheels of the distributing mechanism).
At normal coupling of lobbies and back wheels with the paving provided with adequate distribution of torques working function of conic gear wheels of differential it is limited to the viscous coupling.
Some disks (plates) of external and internal gearing located serially are installed in the case of the viscous coupling. In hermetically closed cavity formed by the case and a back lateral gear wheel of differential air and silicone oil mix is filled in.
The part of disks of the coupling is equipped with the external vents entering gearing with the case of interaxal differential. On vents of disks of internal gearing the lateral gear wheel is put.
For distributing of disks of external gearing between them special remote rings are established. Between disks of internal gearing such rings are not provided that provides certain freedom of their movement in the axial direction.
Two sealants executed in the form of rings of H-shaped section, prevent an effluence from the coupling of silicone oil in case of increase of its pressure at a big difference in speeds of rotation of lobbies and back wheels.
Principle of functioning
Distribution of a torque of the engine at the normal movement of the car
In the absence of a difference of speeds of rotation of lobbies and back wheels the interaxal differential transfers an engine torque on lobbies and back wheels concerning 50:50, and at emergence of such difference, makes its controlled clearing it by means of the viscous coupling.
At the rectilinear movement of the vehicle with a constant speed on the equal road all wheels rotate with an identical speed and the interaxal differential evenly distributes an engine torque between forward and back axes. As disks of external and internal gearing to the viscous coupling remain motionless from each other, the shift moment between them does not arise. During commission of turns at low speeds of the movement the difference in speeds of rotation arises not only between right and left, but also and between lobbies and back wheels, - forward wheels rotate quicker than the back. A problem of interaxal differential is repayments of this difference for the purpose of ensuring smoothness of the movement and extension of service life of tires. Despite insignificance of a difference of speeds of rotation of wheels in these conditions, operation of the viscous coupling leads to redistribution of a torque of the engine in favor of a back axis.