Fiat 1996 Brava Service Manual page 486

Bravo-Brava @
16v
Auto transmission and differential
Components and operation
21-27.
TRANSMISSION OF MOTION
The diagram below illustrates in a simplified manner the composition of the gear sets and control com­
ponents (clutches, brakes and free wheels) of the gearbox.
The same wiring diagram will be used on the following pages to illustrate the intervention of the various
control components during the different stages of operation.
ZZZ/
B1.
B2.
CO.
C1.
C2.
C3.
D.
Band brake
Multiple disc brake
Multiple disc clutch
Multiple disc clutch
Multiple disc clutch
Multiple disc clutch
Clutch carrier drum
E. Motion input shaft
FO. Free wheel
Free wheel
Main shaft motion output gear
Layshaft gear
Crownwheel - epicyclic gear set P1
Crownwheel - epicyclic gear set P2
Sun gear - epicyclic gear set P1
Sun gear - epicyclic gear set P2
Planet gear for epicyclic gear
set P1
Inner planet gear for epicyclic
gear set P2
Outer planet gear for epicyclic
gear set P2
P1 and P2 epicyclic gear train
carrier
Relay shaft
The table below gives the conditions of activation of the components depending on the gear engaged
and the position of the selector lever.
Selector
lever
position
P
R
N
D
3
2
1
Gear engaged
Park
Reverse (*)
Neutral (**)
Neutral
1st
2nd
3rd
4th
1st
2nd
3rd
1st
2nd
3rd
(1st)*
( 2 n d ) *
Control
solenoids
S1
O
O
o
o
o
o
o
o
o
o
o
S2
o
o
o
o
o
o
o
o
SL
o
o
o
o
Clutches
C1
O
o
o
o
o
o
o
o
o
o
o
o
C2
o
o
C3
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
CO
o
o
o
o
Brakes
B1
0
0
o
0
0
B2
o
o
Free
wheels
F1
O
O
o
o
FO
o
o
o
o
o
o
o
o
o
o
o
NOTE 0=Solenoidactivated (*) Speed <7km/h (**) Speed > 7km/h ( • ) Intermediate selection in
manual scale.
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