9.2. Automatic transmission
Automatic transmissions are established on cars with l engines 1.4 and 1,6. Transmission consists of the hydrotransformer, planetary transfer and multidisk hydraulic clutches and servo brakes.
Planetary transfer transfers torque from the engine at various transfer numbers. The transmission liquid which is under pressure includes and disconnects a number of hydraulic clutches and servo brakes in planetary transfer, than change of transfer number is reached. Liquid pressure in system is supported by the separate pump. Management of transmission is provided with the lever of the selector which is fixed in 6 provisions. In position D of the selector automatic change of 4 speeds of the movement is provided. For automatic switching of transmission to the lowered speed (the raised transfer number) at full opening of a butterfly valve kick - down - the device is provided. In position of the selector 2 the car can move with the speeds corresponding to two first transfer numbers, and in situation 1 – only to the first transfer number. It is forbidden to switch transmission to provisions 1 and 2 if speed exceeds 110 km/h. On the selector the button of the switch of the ultraboundary mode is provided (braking by the engine or overloads). In normal traffic conditions this switch has to be in position of ON, and at the movement on descents or rises – in position of OFF. Any repair of transmission is carried out in service of car service.
Removal
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Installation
Dismantling
Independent repair is not recommended as high qualification and the special tool is required. The car with faulty transmission should be handed over in service of car service for diagnostics of codes of refusals and repair. Transmission can be removed only after reading of diagnostic codes.