Freelander System Description and Operation
AUTOMATIC GEARBOX - JATCO
44-16
DESCRIPTION AND OPERATION
Reverse Gear
1 Reverse clutch
2 Front planetary gear
3 Rear planetary gear
4 Low one-way clutch
5 Low reverse brake
6 Input shaft
7 Output gear
8 Idler gear
9 Torque converter
10 Reduction planetary gear
11 Reduction one-way clutch
12 Reduction brake
On reverse gear selection, the reverse clutch, the low and reverse brake, and the reduction brake are engaged. Power
flows from the input shaft to the reverse clutch and the front sun gear. The low and reverse brake is engaged, locking
the front planetary carrier in position. When the front sun gear rotates clockwise, the front planetary carrier remains
locked. The front pinion gears rotate anti-clockwise, forcing the internal gear and output gear to rotate anti-clockwise.
The output gear rotation is transmitted to the reduction internal gear by the idler gear. The reduction brake locks the
reduction sun gear, the reduction planetary carrier rotates in the reverse direction to the forward ranges and transmits
drive to the road wheels through the final drive.