Land Rover Workshop Service and Repair Manuals

 
The double planetary gear train comprises: 
 

Two sunwheels  
Three short planetary gears  
Three long planetary gears  
One planetary gear carrier  
One ring gear or annulus  

POWER FLOWS 

Operation of the transmission is controlled by the TCM which electrically activates various solenoids to control the 
transmission gear selection. The sequence of solenoid activation is based on programmed information in the module 
memory and physical transmission operating conditions such as vehicle speed, throttle position, engine load and selector 
lever position. 
 

Powerflow Schematic 

6

 -

Sunwheel

7

 -

Double planetary gears (long)

8

 -

Sunwheel

Item  Part Number 

Description 

1

 -

Torque input from engine

2

 -

Torque converter lock-up clutch

3

 -

Single web planetary gear carrier

4

 -

Single web planetary gears

5

 -

Single web sunwheel 1

6

 -

Double web sunwheel 2

7

 -

Double web planetary gears - Long

8

 -

Double web planetary gear carrier

9

 -

Double web planetary gears - Short

10

 -

Double web sunwheel 3

11

 -

Torque output from transmission

A

 -

Multiplate clutch

B

 -

Multiplate clutch

C

 -

Multiplate brake

D

 -

Multiplate brake