2011 INFINITI QX56 drain bolt

PRECAUTIONSDLN-7
< PRECAUTION > [TRANSFER: ATX90A]
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5. When the repair work is completed, re-connect both battery cables. With the brake pedal released, turn
the push-button ignition switch from ACC position to ON position, then to LOCK position. (The steering
wheel will lock when the push-button ignition switch is turned to LOCK position.)
6. Perform self-diagnosis check of a ll control units using CONSULT-III.
Service Notice or Precautions for TransferINFOID:0000000006222211
CAUTION:
 Use Genuine NISSAN Transfer Fluid. Refer to MA-10, "
Fluids and Lubricants".
 Never reuse transfer fluid, once it has been drained.
 Check the fluid level or repl ace the fluid only with the vehicle parked on level ground.
 During removal or installati on, keep inside of transfer clear of dust or dirt.
 Replace all tires at the same time. Always use tir es of the proper size and the same brand and pat-
tern. Fitting improper size and unusually worn tires applies excessive force to vehicle mechanism
and can cause longitudinal vibration.
 Disassembly should be done in a clean work area, it is preferable to work in dustproof area.
 Before proceeding with disassembly, thoroughly clean the transfer. It is important to prevent the
internal parts from becoming contamin ated by dirt or other foreign matter.
 All parts should be carefully cl eaned with a general purpose, non-flammable solvent before inspec-
tion or reassembly.
 Check for the correct installation status prior to removal or disassembly. If matching marks are
required, be certain they do not interfere wit h the function of the parts when applied.
 Check appearance of the disassembled parts for damage, deformation, and unusual wear. Replace
them with a new ones if necessary.
 Gaskets, seals and O-rings should be replaced any time the transfer is disassembled.
 In principle, tighten bolts or nu ts gradually in several steps workin g diagonally from inside to out-
side. If tightening sequence is specified, use it.
 Observe the specified torque when assembling.
 Clean and flush the parts su fficiently and blow-dry them.
 Be careful not to damage sliding surfaces and mating surfaces.
 Clean inner parts with lint-free cloth or towels . Do not use cotton work gloves and rags to prevent
adhering fibers.
Revision: 2010 May2011 QX56

DLN-162
< UNIT REMOVAL AND INSTALLATION >[FRONT FINAL DRIVE: R180A]
FRONT FINAL DRIVE ASSEMBLY
UNIT REMOVAL AND INSTALLATION
FRONT FINAL DRIVE ASSEMBLY
Exploded ViewINFOID:0000000006222385
Removal and InstallationINFOID:0000000006222386
REMOVAL
1. Drain the differential gear oil. Refer to
DLN-155, "Draining".
2. Remove the drive shafts. Refer to FAX-22, "
Removal and Installation".
3. Remove the front propeller shaft from the front final drive assembly. Refer to DLN-129, "
Removal and
Installation".
4. Disconnect the breather hose from the front final drive assembly.
5. Support the front final drive assembly using a suitable jack.
6. Remove the front final drive assembly bolts, then remo ve the front final drive assembly with a power tool.
CAUTION:
Secure the front final drive assembly to a suitable jack while removing it.
INSTALLATION
Note the following, and installation is in the reverse order of removal.
CAUTION:
Check that there are no pinched or restricted areas on the breather hose caused by bending or wind-
ing when installing it.
1. Front final drive assembly
Refer to GI-4, "
Components" for symbols in figure.
JPDID0388GB
Revision: 2010 May2011 QX56

SIDE SHAFTDLN-165
< UNIT DISASSEMBLY AND ASSEMBLY > [FRONT FINAL DRIVE: R180A]
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DisassemblyINFOID:0000000006222388
1. Drain the differential gear oil if necessary.
2. Remove the carrier cover bolts
3. Remove carrier cover to insert the seal cutter (A) [SST: KV10111100 (J-37228)] between gear carrier and carrier cover.
CAUTION:
 Never damage the mating surface.
 Never insert flat-bladed screwdriver, this will damage themating surface.
4. Remove side oil seal (right side) with a suitable tool. CAUTION:
Never damage gear carrier.
5. Remove snap ring (hole side) with a suitable tool.
6. Remove differential side shaft assembly out of gear carrier with a suitable tool.
NOTE:
Tap on differential side shaft assembly from side gear side.
7. Remove snap ring (differential side shaft side).
: Apply multi-purpose grease.
: 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.
PDIA0699E
PDIA0713E
PDIA0714E
JPDID0383ZZ
Revision: 2010 May2011 QX56

DLN-204
< UNIT DISASSEMBLY AND ASSEMBLY >[REAR FINAL DRIVE: R230]
DIFFERENTIAL ASSEMBLY
Disassembly
INFOID:0000000006222421
1. Drain gear oil, if necessary.
2. Remove side flanges.
3. Remove rear cover mounting bolts.
4 . R e m o v e r e a r c o v e r t o i n s e r t t h e s e a l c u t t e r [ S S T: K V 1 0 1111 0 0 (J-37228)] between gear carrier and rear cover.
CAUTION:
 Never damage the mating surface.
 Never insert flat-bladed screwdriver, this may damage themating surface.
5. Using spacers, mount carrier on the attachment (A) [SST:
KV38100800 (J-25604-01)].
6. For proper reinstallation, paint matching marks on one side of the bearing cap.
CAUTION:
 For matching marks, use paint. Never damage bearingcaps and gear carrier.
 Bearing caps are manufactured as integral molding. Use the matching marks to them in their original positions.
7. Remove bearing caps.
: 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.
PDIA0940E
JSDIA0041ZZ
SDIA1795E
S-PD343
Revision: 2010 May2011 QX56

DLN-210
< UNIT DISASSEMBLY AND ASSEMBLY >[REAR FINAL DRIVE: R230]
DIFFERENTIAL ASSEMBLY
16. Using the drift [SST: ST35271000 (J-26091)], drive side oil seals
until it becomes flush with the case end.
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.
17. Check and adjust drive gear runout, tooth contact, drive gear to drive pinion backlash, and total preload torque. Refer to DLN-
210, "Adjustment".
Recheck above items. Readjust the above description, if neces-
sary.
18. Apply sealant to mating surface of rear cover.  Use Genuine Silicone RTV or equivalent. Refer to GI-22,
"Recommended Chemical Products and Sealants".
CAUTION:
Remove old sealant adhering to mounting surfaces. Also
remove any moisture, oil, or foreign material adhering to
application and mounting surfaces.
19. Install rear cover on gear carrier and tighten mounting bolts.
20. Install side flange with the following procedure.
a. Attach the protector [SST: KV38108000 ( — )] to side oil seal.
b. After the side flange is inserted and the serrated part of side gear has engaged the serrated part of flange, remove the pro-
tector.
c. Insert the side flange until the se rrated part of the side flange
has engaged the serrated part of the side gear and remove the
protector.
NOTE:
When installation is completed, driving sound of the side flange
turns into a sound that seems to affect the whole final drive.
d. Confirm that the dimension of the side flanges (1) installation measurement (A) in the figure comes into the following.
AdjustmentINFOID:0000000006222423
TOTAL PRELOAD TORQUE
Before inspection and adjustment, drain gear oil.
1. Secure final drive assembly onto an attachment [SST: KV38100800 ( — )].
2. Remove side flanges.
3. Rotate drive pinion back and forth 2 to 3 times to check for unusual noise and rotation malfunction.
SPD560
PDIA0961E
SDIA0822E
A : 342.2 mm (13.47 in)
JSDIA0185ZZ
Revision: 2010 May2011 QX56

DLN-212
< UNIT DISASSEMBLY AND ASSEMBLY >[REAR FINAL DRIVE: R230]
DIFFERENTIAL ASSEMBLY
5. Install bearing caps in their correct locations and tighten bearing
cap mounting bolts.
6. Turn the carrier several times to seat the bearings.
7. Measure the turning torque of the carrier at the drive gear mounting bolts with a spring gauge [SST: — (J-8129)].
8. If the turning torque is outside the specification, use a thicker/ thinner side bearing adjusting washer to adjust. For selecting
adjusting washer, refer to the latest parts information.
CAUTION:
Select a side bearing adjust ing washer for right and left
individually.
9. Record the total amount of washer thickness required for the correct carrier side bearing preload.
DRIVE GEAR RUNOUT
1. Remove rear cover. Refer to DLN-204, "Disassembly".
2. Fit a dial indicator to the drive gear back face.
3. Rotate the drive gear to measure runout.
 If the runout is outside of the repair limit, check drive gearassembly condition; foreign material may be caught between
drive gear and differential case, or differential case or drive
gear may be deformed, etc.
CAUTION:
Replace drive gear and dri ve pinion gear as a set.
TOOTH CONTACT
Before inspection and adjustment, drain gear oil.
1. Remove rear cover. Refer to DLN-204, "
Disassembly".
SDIA1795E
Specification : 34.2 – 39.2N (3.5 – 4.0 kg,
7.7 – 8.8 lb) of pulling force
at the drive gear bolt
SPD194A
If the turning torque is less
than the specified range:Use a thicker thrust wash-
er.
If the turning torque is
greater than the specifica-
tion: Use a thinner thrust wash-
er.
SPD772
Drive gear runout : Refer to
DLN-222, "Drive
Gear Runout".
SPD886
Revision: 2010 May2011 QX56

EM-4
< PRECAUTION >
PRECAUTIONS
If turning the steering wheel is required with the battery disconnected or discharged, follow the operation pro-
cedure below before starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
2. Turn the push-button ignition switch to ACC position. (At this time, the steering lock will be released.)
3. Disconnect both battery cables. The steering lock wi ll remain released with both battery cables discon-
nected and the steering wheel can be turned.
4. Perform the necessary repair operation.
5. When the repair work is completed, re-connect bot h battery cables. With the brake pedal released, turn
the push-button ignition switch from ACC position to ON position, then to LOCK position. (The steering
wheel will lock when the push-button igniti on switch is turned to LOCK position.)
6. Perform self-diagnosis check of all control units using CONSULT-III.
Precaution for Drain Engine Coolant and Engine OilINFOID:0000000006289509
Drain engine coolant and engine oil when engine is cooled.
Precaution for Disconnecting Fuel PipingINFOID:0000000006289510
 Before starting work, check no fire or sp ark producing items are in the work area.
 Release fuel pressure before disconnecting and disassembly.
 After disconnecting pipes, plug openings to stop fuel leakage.
Precaution for Handling High Pressure Fuel SystemINFOID:0000000006289511
 High pressure fuel system components are betw een high pressure fuel pump and fuel injector.
 Always release fuel pressure and never start the engine when performing removal and installation.
 When removing or installing parts without releasing fuel pressure, fuel may be splashed and, if fuel contacts
skin or eyes, it may cause inflammation.
Precaution for Removal and DisassemblyINFOID:0000000006289512
 When instructed to use SST, use specified tools. Always be careful to work safely, avoid forceful or unin-
structed operations.
 Exercise maximum care to avoid damage to mating or sliding surfaces.
 Cover openings of engine system with tape or the equival ent, if necessary, to seal out foreign materials.
 Mark and arrange disassembly parts in an organi zed way for easy troubleshooting and assembly.
 When loosening nuts and bolts, as a basic rule, star t with the one furthest outside, then the one diagonally
opposite, and so on. If the order of loosening is specified, do exactly as specified. Power tools may be used
where noted in the step.
Precaution for Inspection, Repair and ReplacementINFOID:0000000006289513
Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way, and
replace if necessary.
Precaution for Assembly and InstallationINFOID:0000000006289514
 Use torque wrench to tighten bolts or nuts to specification.
 When tightening nuts and bolts, as a basic rule, equally tighten in several different steps starting with the
ones in center, then ones on inside and outside diagonally in this order. If the order of tightening is specified,
do exactly as specified.
 Replace with new gasket, packing, oil seal or O-ring.
 Thoroughly wash, clean, and air-blow each part. Carefully check engine oil or engine coolant passages for
any restriction and blockage.
 Dowel pins are used for several parts alignment. When replacing and reassembling parts with dowel pins,
check that dowel pins are installed in the original position.
Revision: 2010 May2011 QX56

PRECAUTIONSEM-5
< PRECAUTION >
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 Avoid damaging sliding or mating surfaces. Completely re
move foreign materials such as cloth lint or dust.
Before assembly, oil sliding surfaces well.
 Release air within route when refilling after draining engine coolant.
 After repairing, start engine and increase engine speed to check engine coolant, fuel, engine oil, and
exhaust gases for leakage.
Parts Requiring Angle TighteningINFOID:0000000006289515
 Use angle wrench [SST: KV10112100 (BT8653-A)] for the final tightening of the following engine parts:
- Cylinder head bolts
- Main bearing cap bolts
- Main bearing cap sub bolts
- Connecting rod cap bolts
- Crankshaft pulley bolt (No angle wrench is required as the bolt flange is provided with notches for angletightening)
 Ensure thread and seat surfaces are clean and coated with engine oil.
Precaution for Liquid GasketINFOID:0000000006289516
REMOVAL OF LIQUID GASKET SEALING
 After removing mounting nuts and bolts, separate the mating sur- face using the seal cutter [SST:KV10111100 (J-37228)] (A) and
remove old liquid gasket sealing.
CAUTION:
Be careful not to damage the mating surfaces.
 Tap the seal cutter to insert it (B), and then slide it (C) by tapping on the side as shown in the figure.
 In areas where the seal cutter is difficult to use, lightly tap the parts using a plastic hammer to remove it.
CAUTION:
If for some unavoidable reason a tool such as a screwdriver is
used, be careful not to damage the mating surfaces.
LIQUID GASKET APPLICATION PROCEDURE
1. Using a scraper (A), remove old liquid gasket adhering to the liq- uid gasket application surface and the mating surface.
 Remove liquid gasket completely from the groove of the liquidgasket application surface, mounting bolts and bolt holes.
2. Wipe the liquid gasket application surface and the mating sur- face with white gasoline (lighting and heating use) to remove
adhering moisture, grease and foreign materials.
3. Attach liquid gasket tube to the tube presser (commercial ser- vice tool).
Use Genuine RTV Silicone Seal ant or equivalent. Refer to
GI-22, "
Recommended Chemical Products and Sealants".
4. Apply liquid gasket without gaps to the specified location accord- ing to the specified dimensions.
 If there is a groove for liquid gasket application, apply liquidgasket to the groove.
JPBIA0052ZZ
JPBIA0053ZZ
EMA0622D
Revision: 2010 May2011 QX56