Infiniti Q45. Manual - part 768

DIFFERENTIAL GEAR OIL

RFD-9

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RFD

DIFFERENTIAL GEAR OIL

PFP:KLD30

Changing Differential Gear Oil

NDS00065

DRAINING

1.

Stop engine.

2.

Remove drain plug and drain gear oil.

3.

Set a gasket on drain plug and install it to final drive assembly
and tighten to the specified torque. Refer to 

RFD-16, "COMPO-

NENTS"

 . 

CAUTION:

Do not reuse gasket.

FILLING

1.

Remove filler plug. 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, then
install it to final drive assembly. Refer to 

RFD-16, "COMPO-

NENTS"

 .

CAUTION:

Do not reuse gasket.

Checking Differential Gear Oil

NDS00066

OIL LEAKAGE AND OIL LEVEL

●

Make sure that oil is not leaking from final drive assembly or around it.

●

Check oil level from filler plug mounting hole as shown in the fig-
ure.

CAUTION:

Do not start engine while checking oil level.

●

Set a gasket on filler plug and install it on final drive assembly.
Refer to 

RFD-16, "COMPONENTS"

 . 

CAUTION:

Do not reuse gasket.

PDIA0493E

Oil grade and Viscosity:

Refer to 

MA-10, "Fluids and Lubricants"

 .

Oil capacity:

Approx. 1.4  (3 US pt, 2-1/2 Imp pt)

PDIA0494E

PDIA0494E

RFD-10

FRONT OIL SEAL

FRONT OIL SEAL

PFP:38189

Removal and Installation

NDS0009J

CAUTION:

Verify identification stamp of replacement frequency put in the lower part of gear carrier to determine
replacement for collapsible spacer when replacing front oil seal. Refer to 

RFD-10, "IDENTIFICATION

STAMP OF REPLACEMENT FREQUENCY OF FRONT OIL SEAL"

 . If necessary collapsible spacer

replacement, remove final drive assembly and disassemble it to replace front oil seal and collapsible
spacer. Refer to 

RFD-16, "Removal and Installation"

  and 

RFD-18, "Disassembly and Assembly"

 .

NOTE:
The reuse of collapsible spacer is prohibited in principle. However, it is reusable on a one-time basis
only in cases when replacing front oil seal.

IDENTIFICATION STAMP OF REPLACEMENT FREQUENCY OF FRONT OIL SEAL

●

The diagonally shaded area in the figure shows stamping point
for replacement frequency of front oil seal.

●

The following table shows if collapsible spacer replacement is
needed before replacing front oil seal.
When collapsible spacer replacement is required, disassemble
final drive assembly to replace collapsible spacer and front oil
seal. Refer to 

RFD-18, "Disassembly and Assembly"

 .

CAUTION:

Be sure to make a stamping after replacing front oil seal.

●

After replacing front oil seal, make a stamping on the stamping point in accordance with the table below in
order to identify replacement frequency.

CAUTION:

Stamping shall be made from left to right.

REMOVAL

1.

Drain gear oil. Refer to 

RFD-9, "DRAINING"

 .

2.

Make a judgment if a collapsible spacer replacement is required. Refer to 

RFD-10, "IDENTIFICATION

STAMP OF REPLACEMENT FREQUENCY OF FRONT OIL SEAL"

 .

3.

Remove center muffler with power tool. Refer to 

EX-3, "EXHAUST SYSTEM"

 .

4.

Remove rear wheel sensor. Refer to 

BRC-63, "WHEEL SENSORS"

 .

5.

Remove drive shaft from final drive. Then suspend it by wire etc. Refer to 

RAX-9, "REAR DRIVE SHAFT"

.

Stamp

collapsible spacer replacement

No stamp

Not required

“0” or “0” on the far right of stamp

Required

“01” or “1” on the far right of stamp

Not required

PDIA0976E

Stamp before stamping

Stamping on the far right

Stamping

No stamp

0

0

“0”
(Front oil seal was replaced once.)

1

01

“01”
(Collapsible spacer and front oil seal were replaced last time.)

0

010

“0” is on the far right.
(Only front oil seal was replaced last time.)

1

...01

“1” is on the far right.
(Collapsible spacer and front oil seal were replaced last time.)

0

...010

FRONT OIL SEAL

RFD-11

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RFD

6.

Install attachment to side flange, and then pull out the side
flange with a sliding hammer.

NOTE:
Circular clip installation position: Final drive side

7.

Remove propeller shaft. Refer to 

PR-5, "Removal and Installation"

 .

8.

Measure the total preload with the preload gauge.

NOTE:
Record the preload measurement.

9.

Remove drive pinion lock nut using the flange wrench.

10. Put matching mark on the end of the drive pinion. The matching

mark should be in line with the matching mark A on companion
flange.

CAUTION:

For matching mark, use paint. Do not damage drive pinion.

NOTE:
The matching mark A on the final drive companion flange indi-
cates the maximum vertical runout position.

Tool number

A: KV40104100 (

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)

B: ST36230000 (J-25840-A)

SDIA1005E

Tool number

A: ST3127S000 (J-25765-A)

PDIA0977E

PDIA0978E

PDIA0478E

RFD-12

FRONT OIL SEAL

11. Remove companion flange using a puller.

12. Remove front oil seal using the puller.

INSTALLATION

1.

Apply multi-purpose grease to front oil seal lips.

2.

Install front oil seal using the drift as shown in the figure.

CAUTION:

●

Do not reuse oil seal.

●

Do not incline oil seal when installing.

3.

Align the matching mark of drive pinion with the matching mark
A of companion flange, and then install the companion flange.

PDIA0979E

Tool number

A: KV381054S0 (J-34286)

PDIA0980E

Tool number

A: ST30720000 (J-25405)

PDIA0752J

PDIA0478E