GF27.10-P-3012AHZ Power Flow In 2nd Gear, Function

GF27.10-P-3012AHZ Power flow in 2nd gear, function
- Model 164.1
- TRANSMISSION 722.902/903/904/906/907
- as of model year 09

- Model 164.8
- TRANSMISSION 722.902/903/904
- as of model year 09

- Model 251
- TRANSMISSION 722.902/904/906/999
- as of model year 09






Function requirements for power flow in 2nd gear, general
^ Circuit 87 ON
^ Engine running

Power flow in 2nd gear, general
The following multi-disk brakes and multi-disk clutches are engaged:
- Multidisk brake B1 (42)
- Multidisk brake B2 (43)
- Multidisk clutch K3 (48)

In 2nd gear, the power flows through the following gear sets:
^ Ravigneaux gear set
^ Rear single planetary gear set
^ Front single planetary gear set

Ravigneaux gear set
The small ring gear (5) is driven via the transmission input shaft. The long planetary gears (50) roll over the stalled sun gear (7) and transmit the increased torque and reduced rotational speed as a result to the dual planet carrier (6).

Rear single planetary gear set
The ring gear (9) rotates at the same speed due to the mechanical connection to the dual planet carrier (6). The planetary gears (51) roll over the stalled sun gear (11) and transmit the rotary motion to the planet carrier (10).

Front single planetary gear set
The ring gear (12) has a mechanical connection to the planet carrier (10) and rotates at the same speed. The planetary gears (52) roll on the stalled sun gear (14) and transfer the increased torque and reduced rotational speed to the transmission output shaft via the planet carrier (13). The transmission output shaft thus rotates with reduced transmission input speed in the direction of rotation of the engine.