since 1997 of release
Repair and car operation
+ Saab 9-5 Cars
+ Governing bodies and operation receptions
+ Settings and routine maintenance of the car
+ Systems of cooling of the engine, heating, ventilation and air conditioning
+ the Power supply system and production of the fulfilled gases
+ Systems of electric equipment of the engine
+ Manual box of gear shifting
- Automatic transmission
Search of malfunctions - the general information
Removal and installation of assembly of the lever of the selector of AT modes and its casing
Removal, installation and adjustment of a cable of the selector of AT modes
Removal and installation of the lever of the selector of AT modes and dismantling of its casing
Removal and installation Ý/m AT valves, their case and its cover
Removal and installation of sensors of speed
Removal and installation of the AT hydraulic lines
Removal and TCM installation
Replacement and adjustment of the sensor of position of the selector of AT modes
Removal and AT installation
Replacement of epiploons of power shafts
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Onboard electric equipment
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Location of the AT identification number and its interpretation are described in the Section transmission Identification.
On cars considered in the real Management till 2002 AF30 type AT, and since 2002 – AT AF33-5 were established.
During a start of motion of AT acts as ordinary coupling, and during movement performs work on gear shifting.
The AT main hubs are: torque converter (hydrotransformer), planetary reducer, hydraulic or electronic control units. Hydrodriving disk brakes and disk coupling are applied to transition to other transfer relation in a planetary reducer.
Scheme of hydraulic management of AT
The torque converter on the functions corresponds to hydraulic coupling. Its task includes coupling implementation at a start of motion and gear shifting. The hydrotransformer is equipped with the blocking coupling which is carrying out direct coupling of the engine with AT:
Thus on AT AF33-5 movement on the 3rd transfer with the included blocking instead of the 4th transfer without blocking, and on AT AF30 – on the 2nd transfer with the included blocking instead of the 3rd transfer without blocking is possible. Besides, the blocking coupling of the AT AF33-5 hydrotransformer at slow acceleration can slip, allowing a difference of turns of a cranked shaft and primary shaft of AT within 50 ÷ 200 rpm. It allows to switch off lowering transfer later.
The control system of transmission is a component of a control system of the engine and on the basis of the analysis of the data arriving from various information sensors (not necessarily directly related to functioning actually transmissions), are chosen optimum from the point of view of profitability, smoothness of switchings and other by a mode of functioning of AT. Besides, it is possible to correct AT work manually, choosing between a sports, winter or normal mode (see. Head Governing bodies and operation receptions). At failure detection in memory of the control unit the corresponding code (registers see. Systems of electric equipment of the engine).
The unique procedure of service of AT which performance should be made on a regular basis, replacement of its working liquid (ATF) and check of level of ATF which order of performance is stated in Head of Control and routine maintenance of the car is.
Near a radiator of system of cooling of the engine ATF cooler is established.
Thanks to application Д/В of the P/N modes start of the engine can be carried out only when the lever of the AT selector is in the situation "R" or "N" that allows to prevent casual movement of the car in start attempt.
In the present Chapter the general procedures of service AT lying within qualification of the average amateur mechanic are considered only most.