LR3/Disco 3
The shift elements are three rotating multiplate clutches (A, B and E) and two fixed multiplate brakes © and D). All shifts
from 1st to 6th gears are power-on overlapping shifts. Overlapping shifts can be described as one of the clutches
continuing to transmit drive at a lower main pressure until the next required clutch is able to accept the input torque.
The shift elements, clutches and brakes are actuated hydraulically. Fluid pressure is applied to the required clutch and/or
brake, pressing the plates together and allowing drive to be transmitted through the plates. The purpose of the shift
elements is to perform power-on shifts with no interruption to traction and smooth transition between gear ratios.
Power Flow 1st Gear
Item Part Number
Description
1
-
Turbine shaft
2
-
Stator shaft
3
-
Single web planetary gear train
4
-
Ring gear 1
5
-
Clutch A
6
-
Clutch B
7
-
Clutch E
8
-
Brake clutch C
9
-
Fixed connection to transmission housing
10
-
Shaft key
11
-
Brake clutch D
12
-
Double web planetary gear train
13
-
Planetary gears - Long
14
-
Ring gear 2
15
-
Sunwheel 2
16
-
Sunwheel 3
17
-
Double web planetary gear carrier
18
-
Planetary gears - short
19
-
Single web planetary gear carrier
20
-
Sunwheel 1