Fourth Speed (D4) Of D Range - Subaru SVX 1992 Manual

AUTOMATIC TRANSMISSION AND DIFFERENTIAL [M20A61 3- 2
6. FOURTH SPEED (D4) OF D RANGE
During acceleration, the high clutch is applied and
connects the input shaft to the front planetary carrier.
Also, the forward clutch is applied, but it runs idle due
to the one-way clutch (3-4) and takes no part in power
transmission . Power is transmitted from the input
shaft to the front planetary carrier by the function of
the high clutch .
When the front planetary carrier turns normally, be-
cause the front sun gear is held-stationary by the
brake band, the speed of the front internal gear
increases and is delivered to the meshing reduction
drive shaft in normal rotation .
While coasting, because power transmission does
not go through the one-way clutch, reverse power is
transmitted to the engine and engine braking is per-
formed .
Operating condition of parts Power flow (in acceleration)
High clutch : Applied a Input shaft
Brake band : Contracted
l
0 High clutch
Forward clutch (Takes no part :
Applied
t
in power transmission .)
Fron I p lanetary carrier
i
Front pinion gear
t
Front internal gear
a
1
Rear planetary carrier
Reduction drive shaft
~ Redu tion ear
Driv pinion
o Transfe clutch
l
Front differential o Rear differential
Front Planetary Rear planetary
gear
gear
One-way One-way
clutch (3-4) clutch (1-2)
B
Note ;
Locked
~ ~ Input
eConstant free ;
Output
;rotating i
i
`--------, ~ speed : r---'
`--------------------
i
i A B I
High clutch
i
i
Front internal gear
Input shaft
Band brake
I I i I Rear planetary carrier
One-way clutch (3 .4)
One-way clutch (1-2)
o V -
Transfer clutch
Front differential
Front sun ear l Reduction ear
Front planetary carrier
JJ
Rear reduction drive shaft
Drive pinion Rear sun gear
C3-018
Fig . 46
41