BMW 7_ the E38 series from 1994 to 2002
1. Introduction
2. Governing bodies and operation receptions
3. Settings and routine maintenance of the car
4. Engine
5. Systems of cooling of the engine, heating, ventilation and air conditioning
6. A power supply system and production of the fulfilled gases
7. Systems of electric equipment of the engine
8. Manual box of gear shifting and coupling
8.1. Manual box of gear shifting
8.1.1. General information
8.1.2. Removal and RKPP installation
8.1.3. Removal and installation of components of a drive of gear shifting
8.1.4. Major maintenance of a transmission
8.2. Coupling
9. Automatic transmission
10. Kardanny and power shafts, reducer, differential and stupichny assemblies
11. Brake system
12. Suspension bracket and steering
13. Body
14. Onboard electric equipment
15. Electric equipment schemes



8.1.1. General information

General information

The transmission is placed in the cast case attached to the left end face of the block of cylinders. The RKPP case is equipped with openings for descent, check and correction of level of the oil, the closed jams.

Rotation is transferred from a cranked shaft of the engine through coupling knot to primary (leading) shaft of RKPP. Primary shaft is supplied with shlitsa on whom the conducted disk of coupling is established. From primary shaft on which there are all leading gear wheels of transfers, rotation is transferred to a secondary (conducted) shaft of RKPP on which conducted gear wheels of all transfers are located. All transfers are synchronized. From a secondary shaft rotation via the driveshaft is transferred to the main transfer and differential from which power shafts are actuated. Free rotation of satellites of differential on the axes allows an internal wheel to rotate when passing turns more slowly than the external. Primary and secondary shaft of a box are located in parallel each other, and also parallel to cranked and kardanny shaft.

Gear shifting is carried out by means of established on a floor of salon of the coulisse by means of the lever mechanism of a choice of transfers. The mechanism consists of a set of forks of switching by means of which sliding couplings of synchronizers move along a shaft, carrying out blocking of gear wheels of the corresponding transfers.

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8.1. Manual box of gear shifting
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8.1.2. Removal and RKPP installation