INFINITI QX56 2011 Factory Service Manual

TRANSMISSION ASSEMBLYTM-223
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
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JSDIA1731ZZ
Location Item Outer diameter mm (in) A (1) Needle bearing 94 (3.701)
B (2) Bearing race 58.6 (2.307)
(3) Needle bearing 60 (2.362)
C (4) Needle bearing 84.6 (3.331)
D (5) Needle bearing 77 (3.031) E (6) Needle bearing 47 (1.850)
F (7) Needle bearing 84 (3.307)
(8) Bearing race 82 (3.228)
G (9) Needle bearing 80 (3.150) H (10) Needle bearing 92 (3.622)
I (11) Bearing race 60.0 (2.362)
(12) Bearing race 61.1 (2.406)
(13) Needle bearing 60 (2.362)
(14) Bearing race 61.9 (2.437)
J (15) Needle bearing 62.8 (2.472)
K (16) Needle bearing 92 (3.622)
Revision: 2010 May2011 QX56

TM-224
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
TRANSMISSION ASSEMBLY
4WD MODELS
L (17) Needle bearing 65 (2.559)
M (18) Bearing race 58 (2.362)
(19) Needle bearing 58 (2.283)
Location Item Outer diameter mm (in)
JSDIA1732ZZ
Location Item Outer diameter mm (in)
A (1) Needle bearing 94 (3.701)
B (2) Bearing race
58.6 (2.307)
(3) Needle bearing 60 (2.362)
C (4) Needle bearing 84.6 (3.331)
D (5) Needle bearing 77 (3.031) E (6) Needle bearing 47 (1.850)
F (7) Needle bearing 84 (3.307)
(8) Bearing race 82 (3.228)
G (9) Needle bearing 80 (3.150) H (10) Needle bearing 92 (3.622)
Revision: 2010 May2011 QX56

TRANSMISSION ASSEMBLYTM-225
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
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Location of Snap RingsINFOID:0000000006226916
2WD MODELS
I (11) Bearing race 60.0 (2.362)
(12) Bearing race 61.1 (2.406)
(13) Needle bearing 60 (2.362)
(14) Bearing race 61.9 (2.437)
J (15) Needle bearing 62.8 (2.472)
K (16) Needle bearing 92 (3.622) L (17) Needle bearing 65 (2.559)
M (18) Bearing race 58 (2.362)
(19) Needle bearing 58 (2.283)
Location Item Outer diameter mm (in)
Location Shape of snap ring Outer diameter mm (in)
1 A 159.9 (6.295)
2 B 159 (6.260)
3 B 216 (8.504)
4 B 180.4 (7.102)
5 C 171.5 (6.752)
6 B 169 (6.654)
7 B 180.5 (7.106)
8 B 181.0 (7.126)
9 D 64.6 (2.543)
10 B 136 (5.354) 11 E 70.5 (2.776)
JSDIA1733ZZ
Revision: 2010 May2011 QX56

TM-226
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
TRANSMISSION ASSEMBLY
4WD MODELS
DisassemblyINFOID:0000000006226917
CAUTION:
Never disassemble parts behind
drum support. Refer to TM-16, "
TRANSMISSION : Cross-Sectional
View".
1. Drain ATF through drain plug.
12 B 135 (5.315)
13 A 48.4 (1.906)
Location Shape of snap ring Outer diameter mm (in)
Location Shape of snap ring Outer diameter mm (in)
1 A 159.9 (6.295)
2 B 159 (6.260)
3 B 216 (8.504)
4 B 180.4 (7.102)
5 C 171.5 (6.752)
6 B 169 (6.654)
7 B 180.5 (7.106)
8 B 181.0 (7.126)
9 D 64.6 (2.543)
10 B 136 (5.354) 11 E 70.5 (2.776)
12 B 135 (5.315)
13 A 48.4 (1.906)
JSDIA1734ZZ
Revision: 2010 May2011 QX56

TRANSMISSION ASSEMBLYTM-227
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
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2. Remove torque converter by holding it firmly and turning while pulling straight out.
3. Remove tightening bolts ( ) for converter housing and trans- mission case.
4. Remove converter housing from transmission case. CAUTION:
Be careful not to scratch converter housing.
5. Remove O-ring from input clutch assembly.
6. Remove tightening bolts ( ) for oil pump assembly and trans- mission case.
SCIA5010E
JPDIA1107ZZ
SCIA5011E
JPDIA1108ZZ
Revision: 2010 May2011 QX56

TM-228
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
TRANSMISSION ASSEMBLY
7. Attach the sliding hammers [SST: ST25850000 (J-25721-A)] (A)
to oil pump assembly (1) and extract it evenly from transmission
case.
CAUTION:
 Fully tighten the sliding hammer screws.
 Make sure that bearing race is installed to the oil pump
assembly edge surface.
8. Remove O-ring (1) from oil pump assembly.
9. Remove bearing race (1) from oil pump assembly.
10. Remove seal ring (1) from oil pump assembly.
B : Sliding hammer attachment position
JPDIA1109ZZ
JPDIA1110ZZ
J P D I A 1111 Z Z
JSDIA1721ZZ
Revision: 2010 May2011 QX56

TRANSMISSION ASSEMBLYTM-229
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
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11. Remove under drive sun gear (1) from under drive carrier assembly.
12. Remove needle bearing (1) from under drive sun gear.
13. Remove needle bearing (1) from under drive carrier assembly.
14. Remove front brake retaining plate, front brake drive plates, front brake driven plates, and front brake dish plate from trans-
mission case by using a wire (A) with its tip bent like a hook.
15. Remove snap ring (1) from transmission case using a flat- bladed screwdriver.
CAUTION:
 Be careful not to scratch transmission case and 1st one-
way clutch.
 Be careful not to damage snap ring.
JPDIA1112ZZ
JPDIA1113ZZ
JPDIA1114ZZ
JPDIA1115ZZ
JPDIA1116ZZ
Revision: 2010 May2011 QX56

TM-230
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
TRANSMISSION ASSEMBLY
16. Remove input clutch assembly (with 1st one-way clutch, under
drive carrier assembly, front brake hub, front carrier assembly,
and rear internal gear) (1) from transmission case.
17. Remove 1st one-way clutch (1) from front brake hub.
18. Remove under drive carrier assembly (with front brake hub) (1) from front carrier assembly.
19. Remove needle bearing (1) from front carrier assembly.
20. Remove seal rings (1) from input clutch assembly.
JPDIA1117ZZ
JPDIA1118ZZ
JPDIA1119ZZ
JPDIA1120ZZ
JPDIA1121ZZ
Revision: 2010 May2011 QX56

TRANSMISSION ASSEMBLYTM-231
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
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21. Remove mid carrier assembly and rear carrier assembly as a unit.
22. Remove mid carrier assembly from rear carrier assembly.
23. Remove needle bearing (front side) from mid carrier assembly.
24. Remove needle bearing (rear side) from mid carrier assembly.
25. Remove bearing race from rear carrier assembly.
SCIA5017E
SCIA5697E
SCIA2805E
SCIA2804E
SCIA5175E
Revision: 2010 May2011 QX56

TM-232
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
TRANSMISSION ASSEMBLY
26. Remove needle bearing from rear carrier assembly.
27. Remove mid sun gear assembly, rear sun gear assembly, and
high and low reverse clutch hub as a unit.
CAUTION:
Be careful to remove then with bearing race and needle
bearing.
28. Remove high and low reverse clutch assembly from direct clutch assembly.
CAUTION:
Make sure that needle bearing is installed to the high and
low reverse clutch assembly edge surface.
29. Remove direct clutch assembly from reverse brake.
30. Remove needle bearing from drum support.
SCIA2803E
SCIA5018E
SCIA2306E
SCIA5019E
SCIA5198E
Revision: 2010 May2011 QX56