Page 5121 of 5598
![INFINITI QX56 2011 Factory Service Manual
STRUCTURE AND OPERATIONTM-33
< SYSTEM DESCRIPTION > [7AT: RE7R01B]
C
EF
G H
I
J
K L
M A
B
TM
N
O P
Front planetary gear
Under drive planetary gear
Rear planetary gear
Mid planetary gear
“D5” and INFINITI QX56 2011 Factory Service Manual
STRUCTURE AND OPERATIONTM-33
< SYSTEM DESCRIPTION > [7AT: RE7R01B]
C
EF
G H
I
J
K L
M A
B
TM
N
O P
Front planetary gear
Under drive planetary gear
Rear planetary gear
Mid planetary gear
“D5” and](/manual-img/42/57033/w960_57033-5120.png)
STRUCTURE AND OPERATIONTM-33
< SYSTEM DESCRIPTION > [7AT: RE7R01B]
C
EF
G H
I
J
K L
M A
B
TM
N
O P
Front planetary gear
Under drive planetary gear
Rear planetary gear
Mid planetary gear
“D5” and “M5” Positions
Name Front sun gear Front carrier Front internal gear
Condition Fixed Output Input
Direction of rotation — Clockwise revolution Clockwise revolution
Number of revolutions — Deceleration from front internal
gear Same number of revolution as the
input shaft
Name Under drive sun gear Under drive carrier Under drive internal gear
Condition Fixed — Input/Output
Direction of rotation — Clockwise revolution Clockwise revolution
Number of revolutions — Deceleration from under drive in-
ternal gear Same number of revolution as the
front carrier
Name Rear sun gear Rear carrier Rear internal gear
Condition — Output Input
Direction of rotation Clockwise revolution Clockwise revolution Clockwise revolution
Number of revolutions Same number of revolution as the
rear internal gear Same number of revolution as the
rear internal gear Same number of revolution as the
under drive internal gear
Name Mid sun gear Mid carrier Mid internal gear
Condition — Output Input
Direction of rotation Clockwise revolution Clockwise revolution Clockwise revolution
Number of revolutions Same number of revolution as the
mid internal gear Same number of revolution as the
mid internal gear Same number of revolution as the
rear carrier
Revision: 2010 May2011 QX56
Page 5122 of 5598
TM-34
< SYSTEM DESCRIPTION >[7AT: RE7R01B]
STRUCTURE AND OPERATION
The input clutch gets engaged and connects the mid internal gear with the rear carrier.
The direct clutch gets engaged and connects the rear sun gear with the rear carrier.
The high and low reverse clutch gets engaged and connec
ts the rear sun gear with the mid sun gear.
Each planetary gear enters the state described below.
JSDIA0872GB
Revision: 2010 May2011 QX56
Page 5123 of 5598
STRUCTURE AND OPERATIONTM-35
< SYSTEM DESCRIPTION > [7AT: RE7R01B]
C
EF
G H
I
J
K L
M A
B
TM
N
O P
Rear planetary gear
Mid planetary gear
“D6” and “M6” Positions
Name Rear sun gear Rear carrier Rear internal gear
Condition — input/Output —
Direction of rotation Clockwise revolution Clockwise revolution Clockwise revolution
Number of revolutions Same number of revolution as the
rear carrier Same number of revolution as the
input shaft Same number of revolution as the
rear carrier
Name Mid sun gear Mid carrier Mid internal gear
Condition — Output Input
Direction of rotation Clockwise revolution Clockwise revolution Clockwise revolution
Number of revolutions Same number of revolution as the
mid internal gear Same number of revolution as the
mid internal gear Same number of revolution as the
input shaft
Revision: 2010 May2011 QX56
Page 5124 of 5598
TM-36
< SYSTEM DESCRIPTION >[7AT: RE7R01B]
STRUCTURE AND OPERATION
The front sun gear and the under drive sun gear are fixed by the 2346 brake.
The input clutch gets engaged and connects the mid internal gear with the rear carrier.
The high and low reverse clutch gets engaged and connec
ts the rear sun gear with the mid sun gear.
Each planetary gear enters the state described below.
JSDIA0873GB
Revision: 2010 May2011 QX56
Page 5125 of 5598
![INFINITI QX56 2011 Factory Service Manual
STRUCTURE AND OPERATIONTM-37
< SYSTEM DESCRIPTION > [7AT: RE7R01B]
C
EF
G H
I
J
K L
M A
B
TM
N
O P
Front planetary gear
Rear planetary gear
Mid planetary gear
“D7” and “M7” Positions
Name Fro INFINITI QX56 2011 Factory Service Manual
STRUCTURE AND OPERATIONTM-37
< SYSTEM DESCRIPTION > [7AT: RE7R01B]
C
EF
G H
I
J
K L
M A
B
TM
N
O P
Front planetary gear
Rear planetary gear
Mid planetary gear
“D7” and “M7” Positions
Name Fro](/manual-img/42/57033/w960_57033-5124.png)
STRUCTURE AND OPERATIONTM-37
< SYSTEM DESCRIPTION > [7AT: RE7R01B]
C
EF
G H
I
J
K L
M A
B
TM
N
O P
Front planetary gear
Rear planetary gear
Mid planetary gear
“D7” and “M7” Positions
Name Front sun gear Front carrier Front internal gear
Condition Fixed Output Input
Direction of rotation — Clockwise revolution Clockwise revolution
Number of revolutions — Deceleration from front internal
gear Same number of revolution as the
input shaft
Name Rear sun gear Rear carrier Rear internal gear
Condition — Input/Output Input
Direction of rotation Clockwise revolution Clockwise revolution Clockwise revolution
Number of revolutions Acceleration from rear carrier Same number of revolution as the
input shaft Same number of revolution as the
front carrier
Name Mid sun gear Mid carrier Mid internal gear
Condition — Output Input
Direction of rotation Clockwise revolution Clockwise revolution Clockwise revolution
Number of revolutions Acceleration from mid internal gear Acceleration from mid internal gear Same number of revolution as the
input shaft
Revision: 2010 May2011 QX56
Page 5126 of 5598
TM-38
< SYSTEM DESCRIPTION >[7AT: RE7R01B]
STRUCTURE AND OPERATION
The under drive carrier is fixed by the front brake.
The input clutch gets engaged and connects the mid internal gear with the rear carrier.
The high and low reverse clutch gets engaged and connec
ts the rear sun gear with the mid sun gear.
Each planetary gear enters state described below.
JSDIA0874GB
Revision: 2010 May2011 QX56
Page 5127 of 5598
![INFINITI QX56 2011 Factory Service Manual
STRUCTURE AND OPERATIONTM-39
< SYSTEM DESCRIPTION > [7AT: RE7R01B]
C
EF
G H
I
J
K L
M A
B
TM
N
O P
Front planetary gear
Under drive planetary gear
Rear planetary gear
Mid planetary gear
“R” Posit INFINITI QX56 2011 Factory Service Manual
STRUCTURE AND OPERATIONTM-39
< SYSTEM DESCRIPTION > [7AT: RE7R01B]
C
EF
G H
I
J
K L
M A
B
TM
N
O P
Front planetary gear
Under drive planetary gear
Rear planetary gear
Mid planetary gear
“R” Posit](/manual-img/42/57033/w960_57033-5126.png)
STRUCTURE AND OPERATIONTM-39
< SYSTEM DESCRIPTION > [7AT: RE7R01B]
C
EF
G H
I
J
K L
M A
B
TM
N
O P
Front planetary gear
Under drive planetary gear
Rear planetary gear
Mid planetary gear
“R” Position
Name Front sun gear Front carrier Front internal gear
Condition — Output Input
Direction of rotation Counterclockwise revolution Clockwise revolution Clockwise revolution
Number of revolutions Deceleration from front internal
gear Deceleration from front internal
gear Same number of revolution as the
input shaft
Name Under drive sun gear Under drive carrier Under drive internal gear
Condition — Fixed Input/Output
Direction of rotation Counterclockwi se revolution — Clockwise revolution
Number of revolutions Acceleration from under drive inter-
nal gear —
Same number of revolution as the
front carrier
Name Rear sun gear Rear carrier Rear internal gear
Condition — Input/Output Input
Direction of rotation Clockwise revolution Clockwise revolution Clockwise revolution
Number of revolutions Acceleration from rear carrier Same number of revolution as the
input shaft Same number of revolution as the
under drive internal gear
Name Mid sun gear Mid carrier Mid internal gear
Condition — Output Input
Direction of rotation Clockwise revolution Clockwise revolution Clockwise revolution
Number of revolutions Acceleration from mid internal gear Acceleration from mid internal gear Same number of revolution as the
input shaft
Revision: 2010 May2011 QX56
Page 5128 of 5598
TM-40
< SYSTEM DESCRIPTION >[7AT: RE7R01B]
STRUCTURE AND OPERATION
The 1st one-way clutch and the front brake regulate c
ounterclockwise rotation of the under drive carrier.
NOTE:
The front brake operates at the fixed speed or less.
The rear carrier and the mid internal gear are fixed by the reverse brake.
The mid sun gear rotates at the same speed as the rear sun gear by operation of the 2nd one-way clutch
and the high and low reverse clutch.
NOTE:
The high and low reverse clutch operates at the fixed speed or less.
JSDIA0875GB
Revision: 2010 May2011 QX56