wheel bolts INFINITI QX56 2011 Factory Service Manual

FRONT DISC BRAKEBR-37
< REMOVAL AND INSTALLATION >
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BRAKE CALIPER ASSEMBLY : Removal and InstallationINFOID:0000000006222492
REMOVAL
WARNING:
Clean any dust from the brake caliper assembly an d brake pads with a vacuum dust collector. Never
blow with compressed air.
CAUTION:
 Never spill or splash brake fluid on painted surfaces. Brake fluid may seriously damage paint. Wipe it
off immediately and wash with wate r if it gets on a painted surface.
 Never depress the brake pedal. Brake fluid m ay splash while removing the brake hose.
 If the brake fluid or grease adheres to the brake cal iper assembly and disc rotor, quickly wipe it off.
1. Remove tires with power tool.
2. Fix the disc rotor using wheel nuts.
3. Drain brake fluid. Refer to BR-10, "
Draining".
4. Separate brake hose from brake caliper assembly. Refer to BR-23, "
FRONT : Removal and Installation".
5. Remove torque member mounting bolts, and remove brake caliper assembly. CAUTION:
Never drop brake pad and brake caliper assembly.
6. Remove disc rotor. Refer to FA X - 8 , "
Removal and Installation" (2WD), FAX-18, "Removal and Installation"
(AWD).
INSTALLATION
WARNING:
Clean any dust from the brake caliper assembly an d brake pads with a vacuum dust collector. Never
blow with compressed air.
CAUTION:
 Never spill or splash brake fluid on painted surfaces. Brake fluid may seriously damage paint. Wipe it
off immediately and wash with wate r if it gets on a painted surface.
 Never depress the brake pedal. Brake fluid m ay splash while removing the brake hose.
 If the brake fluid or grease adheres to the brake cal iper assembly and disc rotor, quickly wipe it off.
1. Torque member 2. Sliding pin boot 3. Sliding pin
4. Piston boot 5. Piston 6. Piston seal
7. Cylinder body 8. Bleeder valve 9. Cap
: Apply rubber grease.
: Apply brake fluid.
Refer to GI-4, "
Components" for symbols not described on the above.
JPFIA0800GB
Revision: 2010 May2011 QX56

BR-44
< REMOVAL AND INSTALLATION >
REAR DISC BRAKE
CAUTION:
 Never spill or splash brake fluid on painted surfaces. Brake fluid may seriously damage paint. Wipe it
off immediately and wash with wate r if it gets on a painted surface.
 Never depress the brake pedal. Brake fluid may splash while removing the brake hose.
 If the brake fluid or grease adheres to the brake calip er assembly and disc rotor, quickly wipe it off.
1. Remove tires with power tool.
2. Fix the disc rotor using wheel nuts.
3. Drain brake fluid. Refer to BR-10, "
Draining".
4. Separate brake hose from brake caliper assembly. Refer to BR-26, "
REAR : Removal and Installation".
5. Remove torque member mounting bolts, and remove brake caliper assembly. CAUTION:
Never drop brake pad and caliper assembly.
6. Remove disc rotor. Refer to RAX-7, "
Removal and Installation".
INSTALLATION
WARNING:
Clean any dust from the brake caliper assembly an d brake pads with a vacuum dust collector. Never
blow with compressed air.
CAUTION:
 Never spill or splash brake fluid on painted surfaces. Brake fluid may seriously damage paint. Wipe it
off immediately and wash with wate r if it gets on a painted surface.
 Never depress the brake pedal. Brake fluid may splash while removing the brake hose.
 If the brake fluid or grease adheres to the brake calip er assembly and disc rotor, quickly wipe it off.
1. Install disc rotor. Refer to RAX-7, "
Removal and Installation".
2. Install the brake caliper assembly to the axle hous ing and tighten the torque member mounting bolts to the
specified torque.
CAUTION:
Never spill or splash any grease and moisture on the brake caliper assembly mounting face,
threads, mounting bolts. Wipe out any grease and moisture.
3. Install brake hose to brake caliper assembly. Refer to BR-26, "
REAR : Removal and Installation".
4. Perform the air bleeding. Refer to BR-11, "
Bleeding Brake System".
5. Check a drag of rear disc brake. If any drag is found, refer to BR-45, "
BRAKE CALIPER ASSEMBLY :
Inspection".
6. Install tires with power tool. Refer to WT-64, "
Exploded View".
BRAKE CALIPER ASSEMBLY : Disassembly and AssemblyINFOID:0000000006222500
DISASSEMBLY
NOTE:
Never remove the torque member, brake pads and pad retainers when disassembling and assembling the cyl-
inder body.
1. Remove the sliding pin bolt, and remove the cylinder body from the torque member.
CAUTION:
Fix the brake pad at suitable tape so that the brake pad will not drop.
2. Remove sliding pin boots from torque member.
3. Remove bushing from sliding pin bolt.
4. Place a wooden block as shown in the figure, and blow air from brake hose mounting hole to remove piston and piston boot.
CAUTION:
Never get fingers caught in the piston.
MAA0272D
Revision: 2010 May2011 QX56

CAB MOUNTING INSULATORDLK-253
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 Remove brake tube from connector (front wheel well LH and RH side). Refer to BR-22, "FRONT :
Exploded View"
Vehicle center side
 Remove A/T control cable from manual lever. Refer to TM-178, "
Removal and Installation".
 Separate parking brake rear cable (LH and RH) from parking brake front cable. Refer to PB-5, "
Removal
and Installation".
 Remove engine room harness connector (frame assembly RH center side). Refer to PG-146, "
Engine
Room Harness"
- Remove harness connector protector.
- Disconnect chassis harness connector from engine room harness connector.
- Remove harness bracket bolt, and then remove engi ne room harness connector from frame assembly.
Vehicle rear side
 Remove EVAP hose (canister side).
 Remove rear final drive breather hose from air breather tube (body side). Refer to DLN-201, "
Removal
and Installation".
 Disconnect body harness connector from chassis harness connectors (frame assembly LH rear side).
Refer to PG-150, "
Body Harness"
6. Set safety stand to frame assembly. Release arm of 2-pole lift.
7. Remove cab mounting insulator bolts.
8. Set arm of 2-pole lift to body side sill portion of body.
9. Slowly lift 2-pole lift.
CAUTION:
 Check that there is no inte rference with the vehicle.
 Check that all connection points are disconnected.
10. Remove cab mounting insulator.
INSTALLATION
Note the following items, and then install in the reverse order of removal.
CAUTION:
 Before starting engine, check oil/fl uid levels including engine coolant and engine oil. If levels are
less than the required quantity, fill to the specified level. Refer to MA-10, "
Fluids and Lubricants".
 Warm up engine thoroughly to check that there is no leakage of fuel, exhaust gases, or any oil/fluids
including engine oil and engine coolant.
Revision: 2010 May2011 QX56

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-148
< PRECAUTION >[FRONT FINAL DRIVE: R180A]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution Necessary for Steering W
heel Rotation after Battery Disconnect
INFOID:0000000006222372
NOTE:
 Before removing and installing any control units, first tu rn the push-button ignition switch to the LOCK posi-
tion, then disconnect bot h battery cables.
 After finishing work, confirm that all control unit connectors are connected properly, then re-connect both
battery cables.
 Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If a DTC is detected, perform trouble diagnos is according to self-diagnosis results.
For vehicle with steering lock unit, if the battery is disconnected or discharged, the steering wheel will lock and
cannot be turned.
If turning the steering wheel is required with the bat tery 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 Servicing Front Final DriveINFOID:0000000006222373
 Before starting diagnosis of the vehicle, understand the symptoms well. Perform correct and systematic
operations.
 Check for the correct installation status prior to re moval or disassembly. When matching marks are required,
be certain they do not interfere with the f unction of the parts they are applied to.
 Overhaul should be done in a clean work area, a dust proof area is recommended.
 Before disassembly, completely remove sand and mud from the exterior of the unit, preventing them from
entering into the unit during disassembly or assembly.
 Always use shop paper for cleaning the inside of components.
 Avoid using cotton gloves or a shop cloth to prevent the entering of lint.
 Check appearance of the disassembled parts for dam age, deformation, and abnormal wear. Replace them
with new ones if necessary.
 Gaskets, seals and O-rings should be replaced any time the unit is disassembled.
 Clean and flush the parts sufficiently and blow them dry.
 Be careful not to damage sliding surfaces and mating surfaces.
 When applying sealant, remove the old sealant from the mating surface; then remove any moisture, oil, and
foreign materials from the application and mating surfaces.
 In principle, tighten nuts or bolts gradually in severa l steps working diagonally from inside to outside. If a
tightening sequence is specified, observe it.
 During assembly, observe the specified tightening torque.
 Add new differential gear oil, petroleum jelly, or multi-purpose grease, as specified.
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

ENGINE ASSEMBLYEM-99
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4WD models
Removal and InstallationINFOID:0000000006289577
WARNING:
 Situate the vehicle on a flat and solid surface.
 Place chocks at the front
and back of rear wheels.
 For engines not equipped with engi ne slingers, attach proper slingers and bolts described in PARTS
CATALOG.
CAUTION:
 Always be careful to work safely, and avo id forceful or uninstructed operations.
 Never start working until exhaust system and engine coolant are cool enough.
 If items or work required are not covered by th e engine section, refer to the applicable sections.
 Always use the support poin t specified for lifting.
 Use either 2-pole lift type or separate type lift as much as possible. If board-on type is used for
unavoidable reasons, support at r ear axle jacking point with transmi ssion jack or similar tool before
starting work, in preparat ion for the backward shift of the center of gravity.
 For supporting points fo r lifting and jacking point at rear axle, refer to GI-32, "
Garage Jack and
Safety Stand".
NOTE:
When removing/installing only the engine mounting, the hold engine assembly as instructed bellow:
1. Remove hood assembly. Refer to DLK-215, "
Exploded View".
2. Remove the following components and related parts:  Battery. Refer to PG-164, "
Exploded View".
 Battery tray.
 Power steering reservoir tank bracket. Refer to ST-54, "
Exploded View".
 Air cleaner case assembly and air duct. Refer to EM-27, "
Exploded View".
JPBIA4256GB
1. Heat shield plate (RH) 2. Engine mounting insulator (RH) 3. Engine mounting bracket (RH)
4. Engine mounting bracket (LH) 5. Engine mounting insulator (LH) 6. Heat shield plate (LH)
7. Rear engine mounting cross member 8. Rear engine mounting insulator 9. Dynamic damper
Refer to GI-4, "
Components" for symbols in the figure.
Revision: 2010 May2011 QX56

EM-100
< UNIT REMOVAL AND INSTALLATION >
ENGINE ASSEMBLY
3. Install engine slinger on both front right and front left sides of theengine.
4. Hoist the slinger to obtain room for engine assembly. CAUTION:
Use an engine lifter to prevent the engine slinger from fall-
ing and damaging the rocker cover.
REMOVAL
Outline
At first, remove the transmission and transfer assemb ly, steering gear and front final drive facing downward.
Then remove the engine.
Preparation
1. Remove engine cover. Refer to EM-25, "Exploded View".
2. Release fuel pressure. Refer to EC-153, "
Work Procedure".
3. Remove battery and tray. Refer to PG-164, "
Exploded View".
4. Remove the following components and related parts:  Hood assembly. Refer to DLK-215, "
Exploded View".
 Front under cover. Refer to EXT-25, "
Exploded View".
 Front road wheel and tires. Refer to WT-64, "
Exploded View".
5. Drain engine oil. Refer to LU-8, "
Draining".
6. Drain engine coolant. Refer to CO-8, "
Draining".
CAUTION:
 Perform this step when engine is cold.
 Never spill engine coolant on drive belts.
7. Drain power steering fluid. Refer to ST-54, "
Exploded View".
Engine Room Front
1. Remove drive belt. Refer to EM-20, "Exploded View".
2. Remove fan shroud. Refer to CO-13, "
Exploded View".
3. Remove cooling fan and fan coupling. Refer to CO-16, "
Exploded View".
4. Remove radiator hoses (upper and lower).
5. Remove radiator.
Vehicle Underbody
1. Remove exhaust front tube. Refer to EX-5, "Exploded View".
2. Remove protector A and B. Refer to SCS-32, "
FRONT TUBE ASSEMBLY : Exploded View".
3. Remove front suspension rear cross member. Refer to TM-205, "
2WD : Exploded View" (2WD models) or
TM-208, "
4WD : Exploded View" (4WD models).
4. Remove oil cooler. Refer to LU-11, "
Exploded View".
A : Engine front slinger (bank 2)
B : Engine front slinger (bank 1)
Slinger bolts:
: 45.0 N·m (4.6 kg-m, 33 ft-lb)
JPBIA3969ZZ
JPBIA2507ZZ
Revision: 2010 May2011 QX56

FENDER PROTECTOREXT-23
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FENDER PROTECTOR
FENDER PROTECTOR
FENDER PROTECTOR : Exploded ViewINFOID:0000000006367605
FENDER PROTECTOR
FENDER PROTECTOR : Remo val and InstallationINFOID:0000000006367606
REMOVAL
1. Remove mounting bolts, from front lower.
2. Release front fender protector fixing clips, and then remove front fender protector.
3. Disengage hoodledge insulator fixing pawls, and then remove hoodledge insulator.
INSTALLATION
Install in the reverse order of removal.
REAR WHEEL HOUSE PROTECTOR
1. Fender protector 2. U nut 3. Over fender
4. Fender 5. Hoodledge insurator 6. Fender clip
A: To hoodledge panel
JMKIA5463ZZ
Revision: 2010 May2011 QX56

OVER FENDEREXT-27
< REMOVAL AND INSTALLATION >
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3. Disengage front over fender rear side fixing pawls from behind of front fender, and the pull front over fender front side toward
the direction shown in the figure.
CAUTION:
Never pull the front over fender strongly.
4. Remove front fender protector. Refer to EXT-23, "
FENDER PROTECTOR : Removal and Installation"
5. Remove side step front side fixing clips.
6. Disengage front over fender rear side fixing pawls from behind
of fender, and then pull front over fender front side toward the
direction shown in the figure.
CAUTION:
Never pull the front over fender strongly.
7. Remove front over fender.
Rear over fender
1. Remove rear over fender rear side fixing screws and bolts.
2. Remove rear fender protector rear side. Keep the service area. Refer to EXT-24, "
REAR WHEEL HOUSE
PROTECTOR : Removal and Installation".
3. Disengage rear over fender rear side fixing pawls from behind of rear fender, and the pull rear over fender rear side toward the
direction shown in the figure.
4. Remove rear fender protctor. Refer to EXT-24, "
REAR WHEEL HOUSE PROTECTOR : Removal and
Installation".
5. Remove rear over fender front side fixing screws and bolts.
6. Using a remover tool (A), disengage the clips from the rear over fender by starting from the rear.
CAUTION:
 Apply a protective tape (B) on the body to protect the
painted surface from damage.
 Disengage the clips slowly and carefully.
 Never pull the front o ver fender strongly.
: Pawl
JMKIA5452ZZ
: Clip
JMKIA5453ZZ
: Pawl
JMKIA5471ZZ
: Clip
JMKIA5472ZZ
Revision: 2010 May2011 QX56