INFINITI QX56 2011 Factory Service Manual

TRANSMISSION ASSEMBLYTM-243
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68. Remove rear oil seal from rear extension (B) or adapter case (C) using a flat-bladed screwdriver (A).
CAUTION:
Be careful not to scratch adapter case.
AssemblyINFOID:0000000006226918
1. As shown in the figure, use a drift [22 mm (0.87 in) dia. commer-cial service tool] to drive manual shaft oil seals into the transmis-
sion case until it is flush.
CAUTION:
 Never reuse manual shaft oil seals.
 Apply ATF to manual shaft oil seals.
2. Install detent spring to transmission case. Tighten detent spring bolt to the specified torque.
B: 2WD
C: 4WD
JSDIA0157ZZ
SCIA5259E
: Bolt
JPDIA1134ZZ
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TM-244
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TRANSMISSION ASSEMBLY
3. Install manual shaft to transmission case.
4. Install parking rod (1) to manual plate (2).
5. Install manual plate (with parking rod) to manual shaft.
6. Install retaining pin (1) into the manual plate and manual shaft.
a. Fit pinhole of the manual plate to pinhole of the manual shaft
with a pin punch.
b. Use a hammer to tap the retaining pin into the manual plate.
CAUTION:
Drive retaining pin to 2 ±0.5 mm (0.08 ±0.020 in) over the
manual plate.
7. Install retaining pin into the transmission case and manual shaft.
a. Fit pinhole of the transmission case to pinhole of the manual shaft with a pin punch.
b. Use a hammer to tap the retaining pin into the transmission case.
CAUTION:
Drive retaining pin to 5 ±1 mm (0.20 ±0.04 in) over the trans-
mission case.
SCIA5716E
JSDIA1820ZZ
SCIA5715E
A : Approx. 2 mm (0.08in)
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SCIA2427E
Revision: 2010 May2011 QX56

TRANSMISSION ASSEMBLYTM-245
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8. Install D-rings in reverse brake piston.
9. Install reverse brake piston in transmission case.
10. Install needle bearing to drum support edge surface. CAUTION:
Check the direction of needle bearing. Refer to TM-222,
"Location of Needle Bearings and Bearing Races".
11. Install seal rings to drum support.
12. Install reverse brake spring retainer and reverse brake return spring in transmission case.
SCIA6330E
SCIA2325E
SCIA2796E
SCIA3333E
SCIA2324E
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TM-246
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TRANSMISSION ASSEMBLY
13. Set the clutch spring compressor (SST: KV31102400) on
reverse brake spring retainer and install snap ring (fixing spring
retainer) in transmission case while compressing return spring.
CAUTION:
 Securely assemble them using a flat-bladed screwdriverso that snap ring te nsion is slightly weak.
 Be careful not to damage snap ring.
14. Install reverse brake drive plates, driven plates, dish plates and retaining plate in transmission case.
CAUTION:
Check order of plates.
15. Assemble N-spring.
16. Install reverse brake retaining plate in transmission case.
SCIA6700E
1: Snap ring
2 : Retaining plate
3 : Drive plate (eight pieces)
4 : Driven plate (eight pieces)
5: Dish plate
6: Dish plate
JSDIA1858ZZ
SCIA5249E
Revision: 2010 May2011 QX56

TRANSMISSION ASSEMBLYTM-247
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17. Install snap ring in transmission case. CAUTION:
Be careful not to damage snap ring.
18. Measure clearance between retaining plate and snap ring. If not within specified clearance, select proper retaining plate.
19. Install needle bearing to transmission case. CAUTION:
Check the direction of needle bearing. Refer to TM-222,
"Location of Needle Bearings and Bearing Races".
20. Install output speed sensor (1) to transmission case. Tighten revolution sensor bolt to the specified torque.
CAUTION:
 Never subject it to impact by dropping or hitting it.
 Never disassemble.
 Never allow metal filings, etc. to get on the sensor's front
edge magnetic area.
 Never place in an area affected by magnetism.
SCIA2439E
Specified clearance “A”
Standard: TM-298, "
Reverse Brake Clearance".
Retaining plate: Refer to TM-298, "
Reverse Brake Clear-
ance"
SCIA3129E
SCIA5031E
: Bolt
JSDIA1321ZZ
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TM-248
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
TRANSMISSION ASSEMBLY
21. As shown in the figure, use the drift to drive rear oil seal into the
rear extension (2WD) (A) or adapter case (4WD) (B) until it is
flush.
CAUTION:
 Never reuse rear oil seal.
 Apply ATF to rear oil seal.
22. Install return spring (1) to parking pawl (2).
23. Install parking pawl (with return spring) and pawl shaft to rear extension (2WD) or adapter case (4WD).
24. Install parking actuator support to rear extension (2WD) or adapter case (4WD).
1 : Drift [SST: 33400001 (J-26082)]
2 : Drift [Commercial service tool Ø64 mm (2.52 in)]
JSDIA1914ZZ
SCIA6180J
SCIA3424E
SCIA3423E
Revision: 2010 May2011 QX56

TRANSMISSION ASSEMBLYTM-249
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25. Install needle bearing (1) to rear extension (2WD) or adapter case (4WD).
CAUTION:
Check the direction of needle bearing. Refer to TM-222,
"Location of Needle Bearings and Bearing Races".
26. Install rear extension assembly (2WD) or adapter ca se assembly (4WD) according to the following proce-
dures.
a. 2WD
i. Install seal rings (1) to output shaft.
ii. Install parking gear (1) to output shaft (2).
iii. Install output shaft in transmission case. CAUTION:
Be careful not to mistake front for rear because both sides
looks similar. (Thinner end is front side.)
SCIA6179J
JPDIA0030ZZ
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SCIA5030E
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TM-250
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TRANSMISSION ASSEMBLY
iv. Install bearing race to output shaft.
v. Apply recommended sealant (Genuine Anaerobic Liquid Gasket
or equivalent. Refer to GI-22, "
Recommended Chemical Prod-
ucts and Sealants".) to rear extension assembly as shown in the
figure.
CAUTION:
Completely remove all moisture, oil and old sealant, etc.
from the transmission case and rear extension assembly
mounting surfaces.
vi. Install rear extension assembly to transmission case. CAUTION:
Insert the tip of parking rod between the parking pawl and
the parking actuator support when assembling the rear
extension assembly.
vii. Tighten rear extension assembly bolts to the specified torque.
SCIA5245E
Sealant starting
point and end-
point (A) : Start and finish
point shall be in
the center of two bolts.
Overlap width of
sealant starting
point and end-
point (B) : 3 – 5 mm (0.12 – 0.20 in)
Sealant width (C) : 1.0 – 2.0 mm (0.04 – 0.08 in)
Sealant height (C) : 0.4 – 1.0 mm (0.016 – 0.04 in)
JSDIA1855ZZ
SCIA5029E
1: Bracket
A: Bolt
B : Self-sealing bolt
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TRANSMISSION ASSEMBLYTM-251
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b. 4WD
i. Install seal rings (1) to output shaft.
ii. Install parking gear (1) to output shaft (2).
iii. Install output shaft in transmission case. CAUTION:
Be careful not to mistake front for rear because both sides
looks similar. (Thinner end is front side.)
iv. Install bearing race to output shaft.
JPDIA0030ZZ
JPDIA0029ZZ
SCIA5030E
SCIA5245E
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TM-252
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TRANSMISSION ASSEMBLY
v. Install gasket onto transmission case.
CAUTION:
 Completely remove all moisture, oil and old gasket, etc.from the transmission case and adapter case assembly
mounting surfaces.
 Never reuse gasket.
vi. Install adapter case assembly to transmission case. CAUTION:
Insert the tip of parking rod between the parking pawl and
the parking actuator support when assembling the adapter
case assembly.
vii. Tighten adapter case assembly bolts to the specified torque.
27. Install needle bearing in drum support. CAUTION:
Check the direction of need le bearing. Refer to TM-222,
"Location of Needle Bearings and Bearing Races".
SCIA5231E
SCIA5186E
1: Bracket
A: Bolt
B : Self-sealing bolt
JPDIA1155ZZ
SCIA5198E
Revision: 2010 May2011 QX56