Infiniti Q45 (FY33). Manual — part 517
Wheel Hub and Axle Housing
SRA782A
q
1
Adjusting cap
q
2
Insulator
q
3
Wheel bearing lock nut
q
4
Washer
q
5
Bushing
q
6
Axle housing
q
7
Snap ring
q
8
Drive shaft
q
9
Grease seal
q
10
Bushing
q
11
Anchor block
q
12
Wheel bearing
q
13
Snap ring
q
14
Grease seal
q
15
Wheel hub
GI
MA
EM
LC
EC
FE
AT
PD
FA
BR
ST
RS
BT
HA
EL
IDX
REAR AXLE
RA-9
SRA232A
REMOVAL
I
Remove wheel bearing lock nut.
I
Separate drive shaft from axle housing by lightly tapping it. If
it is hard to remove use puller.
When removing drive shaft, cover boots with shop towel to
prevent them from being damaged.
SFA110A
I
Remove brake caliper assembly and rotor.
Brake line need not be disconnected from brake caliper. Be
careful not to depress brake pedal, or piston will pop out.
Do not pull or twist brake hose.
SRA300A
I
Remove axle housing.
SRA310A
INSTALLATION
I
Install axle housing with wheel hub.
I
Tighten wheel bearing lock nut.
Before tightening, apply oil to threaded portion of rear spindle
and both sides of plain washer.
: 206 - 274 N
⋅
m
(21 - 28 kg-m, 152 - 203 ft-lb)
SRA308A
I
Check wheel bearing axial end play.
Axial end play: 0.05 mm (0.0020 in) or less
I
Make sure that wheel bearings operate smoothly.
I
Check toe-in — Refer to ON-VEHICLE SERVICE (RA-8).
REAR AXLE
Wheel Hub and Axle Housing (Cont’d)
RA-10
DISASSEMBLY
CAUTION:
Wheel bearing does not require maintenance. If any of the fol-
lowing symptoms are noted, replace wheel bearing assembly.
I
Growling noise is emitted from wheel bearing during
operation.
I
Wheel hub bearing drags or turns roughly. This occurs
when turning hub by hand after bearing lock nut is tight-
ened to specified torque.
I
After wheel bearing is removed from hub.
SRA511A
Wheel bearing
I
Remove wheel hub from axle housing using a suitable tool.
SRA110A
I
Remove inner race from hub using a bearing replacer/
puller.
SFA950A
I
Remove grease seals from axle housing.
SFA685
I
Remove snap rings.
GI
MA
EM
LC
EC
FE
AT
PD
FA
BR
ST
RS
BT
HA
EL
IDX
REAR AXLE
Wheel Hub and Axle Housing (Cont’d)
RA-11
SFA496A
I
Press out bearing outer race.
CAUTION:
Do not reuse old inner race although it is of the same brand
as the bearing assembly.
SRA111A
Axle housing
I
Attach a drift on outer shell of bushing as shown in figure at
left, remove bushing using arm bushing remover.
When placing axle housing in a vise, use wooden blocks or
copper plates as pads.
SRA112A
I
Ensure axle housing bore is free from scratches or deformities
before pressing bushing into it.
I
Attach bushing to chamfered bore end of axle housing and
press it until it is flush with end face of axle housing.
SRA241A
I
When installing shock absorber bushing, make sure that it is
positioned as shown.
REAR AXLE
Wheel Hub and Axle Housing (Cont’d)
RA-12
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