Datsun 1980 200SX Service Manual page 223

t
Hydraulic Control Circuits AUTOMATIC TRANSM
ISS10 N
D RANGE 3RD GEAR
Power flow
In on
range
engine torque
is
transmitted
through
both clutches
The front clutch
turns
the internal
gear
of the forward
gear
set
clockwise
The
rear
clutch
turns
the
sun
gears in
a
clockwise direction also With both the
internal gear and the
sun
gear of the
forward
gear set turning
in the
same
direction
at
the
same
speed
the
planet
gears are
locked
in
position
and
turn
as a
unit
The output shaft splined
to
the
forward planet
carrier turns at
a
ratio
of
I I
Fluid flow
Governor pressure increases
to the
point that
it
can overcome
the
com
bined forces
of
spring
and throttle
pressure
and
move
the
2nd
3rd shift
Manual Valve
Mechanical
Ojleiation during D3
Range
Front gear set
Rear gear set
Input through
front
and
rear
clutches
Output
shaft
A T332
Front
clutch ON
Rear
clutch ON
Il
N
Front clutch
Rear clutch
Low
and
reverse
brake
Brake
band
servo
One way
clutch
valve When the 2nd
3rd
shift valve
opens
pressure
passes
through
the
valve lands
to
the
2 3
timing valve
and
on
to
apply the front
clutch and
Governor Valve
15
ON
ON
OFF
OFF Presswe release
OFF
AT083
release
the brake band The
car
is
now
in D
or
direct drive
the
rear
clu tch
was
already
applied
Pressure Modifier Valve
2nd 3rd Shift Valve
2nd 3rd
Timing
Valve
Ist 2nd Shift Valve
8
lst 2nd Shift Valve
i
I
Band Servo
is released
t
Second Lock Valve
I
LOrifiCe
Check Valve
2nd 3rd Shift Valve
10
TIBand
Servo Relea Side
I
42nd
3rd
Timing
Valve
II
I
Front Clutch
1
J
Rear Clutch
I
2
Second Lock Valve
3
AT16
Second Lock Valve
9
I i
Band Servo
Apply
Side