Infiniti QX56 (Z62). Manual - part 488

DLN-152

< PREPARATION >

[FRONT FINAL DRIVE: R180A]

PREPARATION

Puller

Removing companion flange

Drift
a: 63 mm (2.48 in) dia. or less
b: 49 mm (1.93 in) dia. or more

Removing and Installing bushing

Sliding hammer

Removing differential case assembly

Replacer

Removing pinion rear bearing inner race

Tool name

Description

ZZA0119D

ZZA0811D

NT125

ZZA0700D

STRUCTURE AND OPERATION

DLN-153

< SYSTEM DESCRIPTION >

[FRONT FINAL DRIVE: R180A]

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DLN

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SYSTEM DESCRIPTION

STRUCTURE AND OPERATION

Sectional View

INFOID:0000000006222376

1.

Side shaft

2.

Side shaft bearing

3.

Side gear

4.

Drive gear

5.

Pinion mate shaft

6.

Differential case

7.

Side bearing

8.

Pinion mate gear

9.

Drive pinion

10. Collapsible spacer

11.

Companion flange

12. Pinion front bearing

13. Pinion rear bearing

14. Housing spacer

PDIA0695E

DLN-154

< SYMPTOM DIAGNOSIS >

[FRONT FINAL DRIVE: R180A]

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

SYMPTOM DIAGNOSIS

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

NVH Troubleshooting Chart

INFOID:0000000006222377

Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.

×

: Applicable

Reference

DLN-174, "

In

sp

ecti

on

"

DLN-171, "

Adjustment

"

DLN-174, "

In

sp

ecti

on

"

DLN-171, "

Adjustment

"

DLN-171, "

Adjustment

"

DLN-155, "

In

sp

ecti

on

"

NVH o

f FRONT PROPE

LLE

R SHAFT 

in 

thi

s

 se

cti

o

n

.

NVH of REAR PROPELLE

R SHAFT 

in 

thi

s

 secti

o

n.

NVH in F

AX, RAX

, FSU 

and RSU sections.

NVH in WT section.

NVH in WT section.

NVH in F

AX and RAX section.

NVH in BR section.

NVH in ST 

section.

Possible cause and SUSPECTED PARTS

Ge

a

r t

o

ot

h 

ro

ug

h

Gear co

nt

ac

t 

im

pro

p

e

r

T

o

oth

 s

u

rf

ac

es

 worn

Ba

ck

la

sh

 i

n

co

rrect

Co

mp

an

io

n

 f

lan

ge

 ex

ces

si

ve

 run

o

u

t

Gear oi

l 

im

p

rope

r

PROPELLER SHAF

T

AXLE

 AND SUSPE

N

S

ION

TIRE

ROA

D

 WHEEL

DRIVE SHA

F

T

BRAKE

STEERI

N

G

Symptom

Noise

×

×

×

×

×

×

×

×

×

×

×

×

×

FRONT DIFFERENTIAL GEAR OIL

DLN-155

< PERIODIC MAINTENANCE >

[FRONT FINAL DRIVE: R180A]

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PERIODIC MAINTENANCE

FRONT DIFFERENTIAL GEAR OIL

Inspection

INFOID:0000000006222378

OIL LEAKAGE

Check that oil is not leaking from the front final drive assembly or around it.

OIL LEVEL

• Remove filler plug (1) and check oil level from filler plug mounting

hole as shown in the figure.

CAUTION:

Never start engine while checking oil level.

• Set a gasket on filler plug (1) and install it on final drive assembly.

Refer to 

DLN-167, "Exploded View"

.

CAUTION:

Never reuse gasket.

Draining

INFOID:0000000006222379

1.

Stop engine.

2.

Remove drain plug (1) and drain gear oil.

3.

Set a gasket on drain plug (1) and install it to final drive assem-
bly and tighten to the specified torque. Refer to 

DLN-167,

"Exploded View"

.

CAUTION:

Never reuse gasket.

Refilling

INFOID:0000000006222380

1.

Remove filler plug (1). Fill with new gear oil until oil level reaches
the specified level near filler plug mounting hole.

2.

After refilling oil, check oil level. Set a gasket to filler plug (1),
then install it to final drive assembly. Refer to 

DLN-167,

"Exploded View"

.

CAUTION:

Never reuse gasket.

JPDID0312ZZ

JPDID0313ZZ

Oil grade and Viscosity

: Refer to 

MA-10, "Fluids 

and Lubricants"

.

Oil capacity

: Refer to 

DLN-185, "Gen-

eral Specifications"

.

JPDID0312ZZ