2011 INFINITI QX56 lock

DIFFERENTIAL ASSEMBLYDLN-167
< UNIT DISASSEMBLY AND ASSEMBLY > [FRONT FINAL DRIVE: R180A]
C
EF
G H
I
J
K L
M A
B
DLN
N
O P
DIFFERENTIAL ASSEMBLY
Exploded ViewINFOID:0000000006222391
1. Bushing 2. Bearing cap 3. Side bearing
4. Side bearing adjusting washer 5. Drive pinion 6. Pinion height adjusting washer
7. Pinion rear bearing 8. Collapsible spacer 9. Gasket
10. Drain plug 11. Side oil seal (left side) 12. Pinion front bearing
13. Front oil seal 14. Companion flange 15. Drive pinion lock nut
16. Gear carrier 17. Side shaft 18. Side shaft bearing
19. Snap ring 20. Snap ring 21. Side oil seal (right side)
22. Drive gear 23. Differential case assembly 24. Housing spacer
25. Filler plug 26. Carrier cover
A: Oil seal lip B: Screw hole C. Comply with the assembly proce- dure when tightening. Refer to DLN-
169, "Assembly".
: Apply gear oil. : Apply anti-corrosion oil.
: Apply multi-purpose grease.
JPDID0390GB
Revision: 2010 May2011 QX56

DLN-168
< UNIT DISASSEMBLY AND ASSEMBLY >[FRONT FINAL DRIVE: R180A]
DIFFERENTIAL ASSEMBLY
Disassembly
INFOID:0000000006222392
1. Remove bushing with drift (commercial service tool).
2. Remove differential side shaft assembly. Refer to DLN-165, "
Disassembly".
3. Remove side oil seal (left side) from gear carrier with a suitable tool.
4. For proper reinstallation, paint matching marks on one side of the side bearing cap and gear carrier.
CAUTION:
 For matching marks, use paint. Never damage side bear-ing cap and gear carrier.
 Bearing caps are manufactured as integral molding. Use the matching marks to them in their original positions.
5. Remove the side bearing caps.
6. Lift the differential case assembly out of the gear carrier with sliding hammer (commercial service tool).
7. Remove the differential case assembly with the side bearing outer race and side bearing adjusting washer.
CAUTION:
 Keep side bearing outer races together with side bearing
inner races. Do not mix them up.
 Keep side bearing adjusting washers together with side
bearings.
: Apply Genuine Silicone RTV or equivalent. Refer to GI-22, "Recommended Chemical Products and Sealants".
: Apply Genuine High Strength Thread Locking Sealant or equivalent. Refer to GI-22, "
Recommended Chemical Products
and Sealants".
Refer to GI-4, "
Components" for symbols not described above.
SDIA1795E
PDIA0701E
PDIA0547E
SPD919
Revision: 2010 May2011 QX56

DIFFERENTIAL ASSEMBLYDLN-169
< UNIT DISASSEMBLY AND ASSEMBLY > [FRONT FINAL DRIVE: R180A]
C
EF
G H
I
J
K L
M A
B
DLN
N
O P
8. Remove housing spacer.
9. Remove side bearing inner race with the puller (A) and base (B).
CAUTION:
 To prevent damage to the side bearing and drive gear,place copper plates between these parts and vise.
 It is necessary to remove si de bearing inner race except
when it is replaced.
10. For proper reinstallation, paint matching marks on the differential case and drive gear.
CAUTION:
For matching marks, use paint. Never damage differential
case and drive gear.
11. Remove the drive mounting gear bolts.
12. Tap the drive gear off the differential case using suitable tool. CAUTION:
Tap evenly all around to keep drive gear from bending.
13. Perform inspection after disassembly. Refer to DLN-174,
"Inspection".
AssemblyINFOID:0000000006222393
1. Apply thread locking sealant into the threaded holes of the drive
gear and install the new drive gear bolts.
 Use Genuine High Strength Thread Locking Sealant or equiv-
alent. Refer to GI-22, "
Recommended Chemical Products and
Sealants".
CAUTION:
Clean degrees drive gear back and threaded holes suffi-
ciently.
2. Install the drive gear to differential case assembly. CAUTION:
Align the matching marks of differential case assembly and
drive gear
3. Tighten the drive gear mounting bolts with the following procedure. CAUTION:
Apply anti-corrosion oi l to the thread and seat of mounting bolts.
a. Tighten the bolts in a crisscross fashion to the specified torque.
b. Tighten the bolts additionally at the specified angle.
CAUTION:
Check the tightening angle us ing the angle wrench (A)
[SST: KV10112100 (BT-8653-A)]. Never make judgment by
visual inspection.
A: Puller [SST: ST33051001 (J-22888-20)]
B: Base [SST: ST33061000 (J-8107-2)]
PDIA0827E
PDIA0496E
SDIA2594E
Drive gear mounting
bolts tightening torque : 58.8 Nm (6.0 kg-m, 43 ft-lb)
Drive gear mounting
bolts tightening angle : 34 to 39 degree
AWBIA0722ZZ
Revision: 2010 May2011 QX56

DLN-176
< UNIT DISASSEMBLY AND ASSEMBLY >[FRONT FINAL DRIVE: R180A]
DRIVE PINION
DRIVE PINION
Exploded ViewINFOID:0000000006222396
1. Bushing 2. Bearing cap 3. Side bearing
4. Side bearing adjusting washer 5. Drive pinion 6. Pinion height adjusting washer
7. Pinion rear bearing 8. Collapsible spacer 9. Gasket
10. Drain plug 11. Side oil seal (left side) 12. Pinion front bearing
13. Front oil seal 14. Companion flange 15. Drive pinion lock nut
16. Gear carrier 17. Side shaft 18. Side shaft bearing
19. Snap ring 20. Snap ring 21. Side oil seal (right side)
22. Drive gear 23. Differential case assembly 24. Housing spacer
25. Filler plug 26. Carrier cover
A: Oil seal lip B: Screw hole C. Comply with the assembly proce-
dure when tightening. Refer to DLN-
169, "Assembly".
: Apply gear oil. : Apply anti-corrosion oil.
: Apply multi-purpose grease.
JPDID0390GB
Revision: 2010 May2011 QX56

DRIVE PINIONDLN-177
< UNIT DISASSEMBLY AND ASSEMBLY > [FRONT FINAL DRIVE: R180A]
C
EF
G H
I
J
K L
M A
B
DLN
N
O P
DisassemblyINFOID:0000000006222397
1. Remove the side shaft. Refer to DLN-165, "Disassembly".
2. Remove the differential assembly. Refer to DLN-168, "
Disassembly".
3. Remove the drive pinion lock nut with a flange wrench (commer- cial service tool).
4. Put matching mark (B) on the end of drive pinion. The matching mark should be in line with the matching mark (A) on companion
flange (1).
CAUTION:
For matching, marks use paint. Never damage companion
flange and drive pinion.
5. Remove the companion flange with the puller (commercial ser- vice tool).
6. Press the drive pinion assembly. CAUTION:
Never drop drive pinion assembly.
: Apply Genuine Silicone RTV or equivalent. Refer to GI-22, "Recommended Chemical Products and Sealants".
: Apply Genuine High Strength Thread Locking Sealant or equivalent. Refer to GI-22, "
Recommended Chemical Products
and Sealants".
Refer to GI-4, "
Components" for symbols not described above.
PDIA0702E
PDIA0799J
PDIA0703E
PDIA0704E
Revision: 2010 May2011 QX56

DLN-180
< UNIT DISASSEMBLY AND ASSEMBLY >[FRONT FINAL DRIVE: R180A]
DRIVE PINION
7. Using drift [SST: ST33200000 (J-26082)], press the pinion front
bearing inner race to drive pinion as far as drive pinion nut can
be tightened.
8. Install front oil seal as shown in figure with the drifts (A and B). CAUTION:
 Never reuse oil seal.
 When installing, n ever incline oil seal.
 Apply multi-purpose grease onto oil seal lips, and gear oil
onto the circumference of oil seal.
9. Install companion flange (1). NOTE:
When reusing drive pinion, align the matching mark (B) of drive
pinion with the matching mark (A) of companion flange, and then
install companion flange (1).
10. Temporarily tighten drive pinion lock nut to drive pinion. CAUTION:
 Apply anti-corrosion oil to th e thread and seat of the drive
pinion lock nut
 Never reuse drive pinion lock nut.
11. Tighten to drive pinion lock nut using flange wrench (A), while adjusting pinion bearing preload torque using preload gauge (B).
CAUTION:
 Adjust to the lower limit of the drive pinion lock nut tight-
ening torque first.
 After adjustment, rotate dri ve pinion back and forth 2 to 3
times to check for unusual no ise, rotation malfunction,
and other malfunctions.
12. Install differential case assembly. Refer to DLN-169, "
Assem-
bly".
CAUTION:
PDIA0709E
A: Drift [SST: ST30720000 (J-25405)]
B: Drift [SST: ST27863000 ( — )]
PDIA0717E
PDIA0799J
A: Flange wrench (commercial service tool)
B: Preload gauge [SST: ST3127S000 (J-25765-A)]
Pinion bearing preload : Refer to DLN-185, "Pre-
load Torque".
WDIA0382E
Revision: 2010 May2011 QX56

DRIVE PINIONDLN-181
< UNIT DISASSEMBLY AND ASSEMBLY > [FRONT FINAL DRIVE: R180A]
C
EF
G H
I
J
K L
M A
B
DLN
N
O P
Never install carrier cover yet.
13. Check and adjust drive gear runout, tooth contact, drive gear to drive pinion backlash. Refer to DLN-171,
"Adjustment".
14. Install side shaft. Refer to DLN-166, "
Assembly".
15. Check and adjust companion flange runout. Refer to DLN-181, "
Adjustment".
16. Check total preload torque. Refer to DLN-171, "
Adjustment".
17. Install carrier cover. Refer to DLN-169, "
Assembly".
AdjustmentINFOID:0000000006222399
PINION GEAR HEIGHT
1. Make sure all parts are clean and that the bearings are well
lubricated.
2. Assemble the pinion gear beari ngs into the differential shim
selector tool [SST: — (J-34309)].
 Pinion front bearing; make sure the J-34309-3 pinion front
bearing seat is secured tightly against the J-34309-2 gauge
anvil. Then turn the pinion front bearing pilot, J-34309-7, to
secure the bearing in its proper position.
 Pinion rear bearing; the pinion rear bearing pilot, J-34309-8,
is used to center the pinion rear bearing only. The pinion rear
bearing locking seat, J-34309-4, is used to lock the bearing to
the assembly.
 Installation of J-34309-9 and J-34309-16; place a suitable
2.5 mm (0.098 in) thick plain washer between J-34309-9 and
J-34309-16. Both surfaces of J-34309-9 and J-34309-16 must
be parallel with a clearance of 2.5 mm (0.098 in).
3. Install the pinion rear bearing inner race into gear carrier. Then place the pinion preload shim selector tool, J-34309-1, gauge
screw assembly.
4. Assemble the pinion front bearing inner race and the J-34309-2 gauge anvil. Assemble them together with the J-34309-1 gauge
screw in gear carrier. Make sure that the pinion height gauge
plate, J-34309-16, turns a full 360 degrees. Tighten the two sec-
tions together by hand.
SPD769
SPD197A
SPD893
SPD199A
Revision: 2010 May2011 QX56

DLN-190
< PREPARATION >[REAR FINAL DRIVE: R230]
PREPARATION
Tool name
Description
Flange wrench Removing and installing drive pinion lock nut
Puller Removing companion flange
Sliding hammer Removing differential case assembly
Puller Removing drive pinion rear bearing inner race
Spacer
a: 60 mm (2.36 in) dia.
b: 36 mm (1.42 in) dia.
c: 30 mm (1.18 in) Installing drive pinion front bearing inner race
Power tool Loosing nuts and bolts
NT035
ZZA0119D
NT125
ZZA0700D
ZZA1133D
PBIC0190E
Revision: 2010 May2011 QX56