OVERALL SYSTEM
AT-27
[RE4F04B]
D
E
F
G
H
I
J
K
L
M
A
B
AT
Revision: November 2006
2006 Altima
Shift Mechanism
ECS0095V
CONSTRUCTION
FUNCTION OF CLUTCH AND BRAKE
CLUTCH AND BAND CHART
1.
Torque converter
2.
Oil pump
3.
Input shaft
4.
Brake band
5.
Reverse clutch
6.
High clutch
7.
Front sun gear
8.
Front pinion gear
9.
Front internal gear
10. Front planetary carrier
11. Rear sun gear
12. Rear pinion gear
13. Rear internal gear
14. Rear planetary carrier
15. Forward clutch
16. Forward one-way clutch
17. Overrun clutch
18. Low one-way clutch
19. Low & reverse brake
20. Parking pawl
21. Parking gear
22. Output shaft
23. Idle gear
24. Output gear
SAT998I
Clutch and brake components
Abbr.
Function
Reverse clutch 5
R/C
To transmit input power to front sun gear 7 .
High clutch 6
H/C
To transmit input power to front planetary carrier 10 .
Forward clutch 15
F/C
To connect front planetary carrier 10 with forward one-way clutch
16 .
Overrun clutch 17
O/C
To connect front planetary carrier 10 with rear internal gear 13 .
Brake band 4
B/B
To lock front sun gear 7 .
Forward one-way clutch 16
F/O.C
When forward clutch 15 is engaged, to stop rear internal gear 13
from rotating in opposite direction against engine revolution.
Low one-way clutch 18
L/O.C
To stop front planetary carrier 10 from rotating in opposite direc-
tion against engine revolution.
Low & reverse brake 19
L & R/B
To lock front planetary carrier 10 .
Shift position
Re-
verse
clutch
5
High
clutch
6
For-
ward
clutch
15
Over-
run
clutch
17
Band servo
For-
ward
one-
way
clutch
16
Low
one-
way
clutch
18
Low &
re-
verse
brake
19
Lock-
up
Remarks
2nd
apply
3rd re-
lease
4th
apply
P
PARK POSI-
TION
R
O
O
REVERSE
POSITION