INFINITI QX56 2011 Factory Service Manual

TRANSMISSION ASSEMBLYTM-253
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
C
EF
G H
I
J
K L
M A
B
TM
N
O P
28. Install direct clutch assembly in reverse brake. CAUTION:
Make sure that drum support edge surface and direct clutch
inner boss edge surface come to almost same place.
29. Install high and low reverse clutch assembly in direct clutch.
30. Align the drive plate using a flat-bladed screwdriver.
31. Install high and low reverse clutch hub, mid sun gear assembly, and rear sun gear assembly as a unit.
CAUTION:
SCIA5019E
SCIA2306E
SCIA3169E
SCIA5018E
Revision: 2010 May2011 QX56

TM-254
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
TRANSMISSION ASSEMBLY
Make sure that portion “A” of
high and low reverse clutch
drum protrudes approximately 2 mm (0.08 in) beyond por-
tion “B” of rear sun gear.
32. Install needle bearing in rear carrier assembly. CAUTION:
Check the direction of need le bearing. Refer to TM-222,
"Location of Needle Bearings and Bearing Races".
33. Install bearing race in rear carrier assembly. CAUTION:
Check the direction of need le bearing. Refer to TM-222,
"Location of Needle Bearings and Bearing Races".
34. Install rear carrier assembly in direct clutch drum.
35. Install needle bearing (rear side) to mid carrier assembly. CAUTION:
Check the direction of need le bearing. Refer to TM-222,
"Location of Needle Bearings and Bearing Races".
SCIA3130E
SCIA2803E
SCIA5175E
SCIA2462E
SCIA2804E
Revision: 2010 May2011 QX56

TRANSMISSION ASSEMBLYTM-255
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
C
EF
G H
I
J
K L
M A
B
TM
N
O P
36. Install needle bearing (front side) to mid carrier assembly. CAUTION:
Check the direction of needle bearing. Refer to TM-222,
"Location of Needle Bearings and Bearing Races".
37. Install mid carrier assembly in rear carrier assembly.
38. Install seal rings (1) to input clutch assembly.
39. Install needle bearing (1) to front carrier assembly. CAUTION:
Check the direction of needle bearing. Refer to TM-222,
"Location of Needle Bearings and Bearing Races".
SCIA2805E
SCIA5017E
JPDIA1121ZZ
JPDIA1120ZZ
Revision: 2010 May2011 QX56

TM-256
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
TRANSMISSION ASSEMBLY
40. Install input clutch assembly (with front carrier assembly and
rear internal gear) (1) to transmission case.
CAUTION:
Check that the needle bearing (2) is securely positioned. If
the needle bearing position is misaligned, adjust it to the
specified position.
41. Install 1st one-way clutch (1) to front brake hub (with under drive carrier) (2).
42. Check operation of 1st one-way clutch.
a. Hold 1st one-way clutch.
b. Check front brake hub for correct locking and unlocking direc- tions.
CAUTION:
If not shown in figure, check installati on direction of 1st one-way clutch.
43. Install under drive carrier (with 1st one-way clutch) (1) to trans- mission case.
JSDIA1714ZZ
: Unlocked
: Locked
JSDIA1713ZZ
JSDIA1715ZZ
Revision: 2010 May2011 QX56

TRANSMISSION ASSEMBLYTM-257
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
C
EF
G H
I
J
K L
M A
B
TM
N
O P
44. Install snap ring (1) to transmission case. CAUTION:
Be careful not to damage snap ring.
45. Install front brake retaining plate (thin) (1), front brake drive plates (2), front brake driven pl ate (3), and front brake retaining
plate (thick) (4) to transmission case.
CAUTION:
Check order of plates.
46. Install needle bearing (1) to under drive carrier assembly. CAUTION:
Check the direction of needle bearing. Refer to TM-222,
"Location of Needle Bearings and Bearing Races".
47. Install under drive sun gear (1) to under drive carrier assembly.
48. Adjustment of total end play “T”.  Measure clearance between bearing race (1) and oil pump
cover (2).
 Select proper thickness of bearing race so that end play is within specifications.
JPDIA1116ZZ
: Front
JPDIA1154ZZ
JPDIA1114ZZ
JPDIA1112ZZ
JSDIA1696ZZ
Revision: 2010 May2011 QX56

TM-258
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
TRANSMISSION ASSEMBLY
a. Measure dimensions “K” and “L”, and calculate dimension “J”.
i. Measure dimension “K” between
the converter housing fitting
surface of transmission case and the needle bearing mating sur-
face of under drive sun gear.
CAUTION:
Never change the straight edge installation position before
the completion of “L” measurement.
ii. Measure dimension “L” between the converter housing fitting surface of transmission case and the oil pump fitting surface of
transmission case.
iii. Measure dimension “K” and “L” in at least three places, and take the average.
iv. Calculate dimension “J”.
b. Measure dimensions “M
1” and “M2”, and calculate dimension
“M”.
1 : Transmission case
2 : Under drive sun gear
A : Straightedge
“J” : Distance between the oil pump fitting surface
of transmission case and the needle bearing
mating surface of under drive sun gear.
J = K – L
JSDIA1697ZZ
JSDIA1698ZZ
J = K – L
JSDIA1699ZZ
1 : Bearing race
2 : Needle bearing
3 : Oil pump assembly
A : Straightedge
“M” : Distance between the transmission case fit- ting surface of oil pump and the needle bearing
on oil pump.
M = M
1– M2
JSDIA1700ZZ
Revision: 2010 May2011 QX56

TRANSMISSION ASSEMBLYTM-259
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
C
EF
G H
I
J
K L
M A
B
TM
N
O P
i. Place bearing race (1) and needle bearing (2) on oil pump assembly (3).
ii. Measure dimension “M
1” between the transmission case fitting
surface of oil pump and the end of oil pump.
CAUTION:
Measure dimension “M
1” in at least three places, and take
the average.
iii. Measure dimension “M
2” between the needle bearing on oil
pump and the end of oil pump.
CAUTION:
Measure dimension “M
2” in at least three places, and take
the average.
iv. Calculate dimension “M”.
c. Adjust total end play “T”.
 Select proper thickness of bearing race so that total end playis within specifications.
JSDIA1701ZZ
1 : Bearing race
2 : Needle bearing
3 : Oil pump assembly
A : Straightedge
JSDIA1702ZZ
1 : Bearing race
2 : Needle bearing
3 : Oil pump assembly
A : Straightedge
M = M1– M2
JSDIA1703ZZ
1 : Bearing race
2 : Oil pump assembly
T = J – M
Total end play “T” : Refer to TM-298, "
To ta l E n d
Play".
Bearing races : Refer to TM-298, "
Total End Play".
JSDIA1696ZZ
Revision: 2010 May2011 QX56

TM-260
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
TRANSMISSION ASSEMBLY
49. Adjustment of front brake clearance “C”.
 Measure clearance between front brake piston (1) and frontbrake retaining plate (2).
 Select proper thickness of front brake retaining plat so that
clearance is within specifications.
a. Measure dimensions “O” and “P”, and calculate dimension “N”.
i. Measure dimension “O” between the converter housing fitting surface of transmission case and the front brake retaining plate.
CAUTION:
Never change the straight edge installation position before
the completion of “P” measurement.
ii. Measure dimension “P” between the converter housing fitting
surface of transmission case and the oil pump fitting surface of
transmission case.
iii. Measure dimension “O” and “P” in at least three places, and take the average.
iv. Calculate dimension “N”.
JSDIA1704ZZ
1 : Transmission case
2 : Front brake retaining plate
A : Straightedge
“N” : Distance between the oil pump fitting surface of transmission case and the front brake retain-
ing plate.
N = O – P
JSDIA1705ZZ
1 : Transmission case
2 : Front brake retaining plate
A : Straightedge
JSDIA1706ZZ
1 : Transmission case
A : Straightedge
N = O – PJSDIA1707ZZ
Revision: 2010 May2011 QX56

TRANSMISSION ASSEMBLYTM-261
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
C
EF
G H
I
J
K L
M A
B
TM
N
O P
b. Measure dimensions “Q1” and “Q2”, and calculate dimension
“Q”.
i. Measure dimension “Q
1” between the transmission case fitting
surface of oil pump and the st raightedge on front brake piston.
CAUTION:
Measure dimension “M
2” in at least three places, and take
the average.
ii. Measure dimension “Q
2” of the straightedge.
iii. Calculate dimension “Q”.
c. Adjust front brake clearance “C”.
 Select proper thickness of retaining plate so that front brakeclearance is within specifications.
1 : Front brake piston
2 : Oil pump assembly
A : Straightedge
“Q” : Distance between the transmission case fit-
ting surface of oil pump and the front brake pis-
ton.
Q = Q
1– Q2JSDIA1708ZZ
1 : Front brake piston
2 : Oil pump assembly
A : Straightedge
JSDIA1709ZZ
1 : Front brake piston
2 : Oil pump assembly
A : Straightedge
Q = Q1– Q2
JSDIA1711ZZ
1 : Front brake piston
2 : Front brake retaining plate
C = N – Q
Front brake clearance “C” : Refer to TM-298, "
Front
Brake Clearance".
Retaining plate : Refer to TM-298, "
Front Brake Clearance".
JSDIA1704ZZ
Revision: 2010 May2011 QX56

TM-262
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
TRANSMISSION ASSEMBLY
50. Remove under drive sun gear (1) from under drive carrier
assembly.
51. Install needle bearing (1) to under drive sun gear. CAUTION:
Check the direction of need le bearing. Refer to TM-222,
"Location of Needle Bearings and Bearing Races".
52. Install O-ring (1) to oil pump assembly.
53. Install seal ring (1) to oil pump assembly.
54. Install bearing race (1) to oil pump assembly.
JPDIA1112ZZ
JPDIA1113ZZ
JPDIA1110ZZ
JSDIA1721ZZ
J P D I A 1111 Z Z
Revision: 2010 May2011 QX56