Infiniti QX56 (Z62). Manual — part 487
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< PRECAUTION >
[FRONT FINAL DRIVE: R180A]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution Necessary for Steering Wheel Rotation after Battery Disconnect
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NOTE:
• Before removing and installing any control units, first turn the push-button ignition switch to the LOCK posi-
tion, then disconnect both 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 diagnosis 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 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 will 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 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 all control units using CONSULT-III.
Precaution for Servicing Front Final Drive
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• Before starting diagnosis of the vehicle, understand the symptoms well. Perform correct and systematic
operations.
• Check for the correct installation status prior to removal or disassembly. When matching marks are required,
be certain they do not interfere with the function 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 damage, 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 several 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.
PREPARATION
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< PREPARATION >
[FRONT FINAL DRIVE: R180A]
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PREPARATION
PREPARATION
Special Service Tool
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The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool name
Description
ST3127S000
(J-25765-A)
Preload gauge
Measuring pinion bearing preload and total
preload
KV381054S0
(J-34286)
Puller
Removing front oil seal
ST30720000
(J-25405)
Drift
a: 77 mm (3.03 in) dia.
b: 55.5 mm (2.185 in) dia.
• Installing front oil seal
• Installing side oil seal
• Installing pinion front bearing outer race
ST27863000
(
—
)
Drift
a: 74.5 mm (2.933 in) dia.
b: 62.5 mm (2.461 in) dia.
• Installing front oil seal
• Installing side oil seal
KV10111100
(J-37228)
Seal cutter
Removing carrier cover
ZZA0806D
ZZA0601D
ZZA0811D
ZZA1003D
S-NT046
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< PREPARATION >
[FRONT FINAL DRIVE: R180A]
PREPARATION
ST3306S001
(J-22888-D)
Differential side bearing puller set
1: ST33051001
(J-22888-20)
Puller
2: ST33061000
(J-8107-2)
Base
a: 28.5 mm (1.122 in) dia.
b: 38 mm (1.50 in) dia.
Removing and installing side bearing inner
race
KV10112100
(BT-8653-A)
Angle wrench
Tightening the drive gear mounting bolts
ST33230000
(J-35867)
Drift
a: 51 mm (2.01 in) dia.
b: 41 mm (1.61 in) dia.
c: 28 mm (1.10 in) dia.
Installing side bearing inner race
ST30611000
(J-25742-1)
Drift bar
Installing pinion rear bearing outer race
(Use with ST30613000)
ST30613000
(J-25742-3)
Drift
a: 72 mm (2.83 in) dia.
b: 48 mm (1.89 in) dia.
Installing pinion rear bearing outer race
KV38100200
(J-26233)
Drift
a: 65 mm (2.56 in) dia.
b: 49 mm (1.93 in) dia.
Installing pinion front bearing outer race
Tool number
(Kent-Moore No.)
Tool name
Description
NT072
ZZA0120D
ZZA1046D
S-NT090
ZZA1000D
ZZA1143D
PREPARATION
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< PREPARATION >
[FRONT FINAL DRIVE: R180A]
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Commercial Service Tool
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ST30901000
(J-26010-01)
Drift
a: 79 mm (3.11 in) dia.
b: 45 mm (1.77 in) dia.
c: 35.2 mm (1.386 in) dia.
Installing drive pinion rear bearing inner race
ST33200000
(J-26082)
Drift
a: 60 mm (2.36 in) dia.
b: 44.5 mm (1.752 in) dia.
Installing drive pinion front bearing inner race
—
(J-34309)
Differential shim selector tool
Adjusting bearing preload and pinion gear
height
—
(J-25269-18)
Side bearing disc (2 Req
′
d)
Selecting pinion height adjusting washer
Tool number
(Kent-Moore No.)
Tool name
Description
ZZA0978D
ZZA1002D
NT134
NT135
Tool name
Description
Power tool
Loosening bolts and nuts
Flange wrench
Removing and installing drive pinion lock nut
PBIC0190E
NT035
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