Subaru XT 1988 Service Manual page 586

3-2
AUTOMATIC TRANSMISSION AND DIFFERENTIAL
6) 2-RANGE FIRST SPEED OR 1ST HOLD
FIRST SPEED (2" 1ST HOLD)
• During acceleration, the forward clutch and overrunning
clutch are applied and the front planetary carrier and rear
internal gear are connected. Also, the low & reverse brake is
applied so that the front planetary carrier and internal gear
remain stationary.
The power flow is the same as in the first speed of "0",
"3" and "2" range (except for the following points) and
Operating condition of parts
•
Forward clutch
Applied
•
One-way clutch (3-4) Applied (in acceleration)
•
Overrunning clutch Applied
•
Low
&
reverse brake Operating
Front planetary carrier Rear planetary carrier
engine braking is performed.
• The low & reverse brake operates in place of the one-
way clutch (1-2) and locks the rear internal gear.
• In coasting and deceleration, low & reverse brake and
overrunning clutch are operating, so that reverse power is
transmitted to the engine and engine braking action is
provided.
Power flow (in acceleration)
•
Input shaft
•
~
Rear sun gear
~
•
Rear pinion gear
t
•
Rear planetary carrier
t
•
Reduction gear
~
I
i
•
Drive pinion
•
Transfer clutch
+
~
•
Front differential
•
Rear differential
Note:
III
Locked
0
Input
-
Output
I
~--------,
I
I
I
L _ _ _ _ _ _ _ _
--------l
I
I I
One-way clutch (3-4)
Input shaft
Overrunning clutch
I
I
I
I
Forward clutch
I
I
Low & reverse brake
I
One-way cI utch (1-2)
-
L3-802
Front differential Drive pinion
Fig_ 96
70