GF27.10-P-2009AHZ Power Flow, Function

GF27.10-P-2009AHZ Power flow, function
- Transmission 722.902/903/904/906/907 [model 164.1]
- Transmission 722.902/903/904 [model 164.8]
- Transmission 722.902/904/906/999 [model 251.1]









Power transmission, general
"Power flow" refers to the transmission paths of driving power and engine torque. The engine torque is transferred to the drive wheels via the following mechanical and hydraulic connections:
^ Torque converter
^ Automatic transmission
^ Propeller shafts
^ Rear axle differential
^ Transfer case (model 164.120/122/124/125/128/172/186/822/824/825/828/871/886,
251.020/022/065/072/122/124/125/165/172/175)
^ Front differential (model 164.120/122/124/125/128/172/186/822/824/825/828/871/886,
251.020/022/065/072/122/124/125/165/172/175)

Power is transferred in the torque converter via the driven impeller by diverting hydraulic fluid to the turbine wheel which is connected to the transmission input shaft.

If the torque converter lockup clutch is engaged, the power flows via this mechanical connection to the transmission input shaft. Via the gear wheels of the individual planetary gear sets, the torques coming from the converter, depending on the gear ratio

and shift elements actuated, are passed on to the transmission output shaft with the help of the multidisk clutches and multidisk brakes.

A reduction of the output speed in the low gears provides lower vehicle speeds with high tractive forces and drive torques at the drive wheels.

Further partial functions are described in separate documents:
^ Power flow in 1st gear, function
^ Power flow in 2nd gear, function
^ Power flow in 3rd gear, function
^ Power flow in 4th gear, function
^ Power flow in 6th gear, function
^ Power flow in 6th gear, function
^ Power flow in 7th gear, function
^ Power flow in reverse gear, transmission mode "S", function
^ Power flow in reverse gear, transmission mode "C", function