GF27.10-P-3016G Power Flow In Reverse Gear, Program Selection "W", Function

GF27.10-P-3016G Power flow in reverse gear, program selection "W", function
- Transmission 722.6 [model 129, 170, 202, 208, 210]
- Transmission 722.6 [model 203, 209.3 up to 31.5.03]
- Transmission 722.6 [model 211, 230 up to 31.8.03
- Transmission 722.6 [model 215, 220 up to 31.8.02









Principle of power flow in reverse gear:

Program selection "W"
Torque from the torque converter is increased via the drive shaft (1) and the center planetary gear set and rear planetary gear set and transferred with reversed direction of rotation to the output shaft (5).

The following components are not engaged:
^ Front multi-disk brake (B1)
^ Rear multi-disk brake (B2)
^ Freewheel (F1)
^ Freewheel (F2)
^ Center multi-disk clutch (K2)

Front planetary gear set
The planet carrier (V3) and sun gear (V1) are rigidly connected via the engaged front multi-disk clutch (K1). The planetary gear set is therefore locked and turns as a closed unit at the input speed due to the mechanical connection of the internal-geared wheel (V4) and drive shaft (1).

Rear planetary gear set
The engaged center multi-disk brake (B3) holds the planet carrier (H3) against the housing. The internal geared wheel (H4) turns at the input speed because of its mechanical connection with the locked planet carrier (V3). The planet gears (H2) turn between the internal-geared wheel (H4) and the sun gear (H1). The direction is reversed by the fixed planet carrier (H3) so that the sun gear (H1) turns in the opposite direction to the running direction of the engine.

Center planetary gear set
The internal geared wheel (M4) is held against the housing by the center multi-disk brake (B3) via the mechanical connection with the planet carrier (H3). The sun gear (M1) turns backwards due to the engaged rear multi-disk clutch K3. The planet gears (M2) turn on the fixed internal-geared wheel (M4) and increase the torque from the sun gear (M1) to the planet carrier (M3). The output shaft (5) connected to the planet carrier (M3) turns at a reduced speed in the opposite direction to the running direction of the engine.