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Infiniti QX56 (Z62). Manual - part 499

DLN-196

< REMOVAL AND INSTALLATION >

[REAR FINAL DRIVE: R230]

FRONT OIL SEAL

Put matching mark (B) on the end of the drive pinion. The
matching mark (A) on companion flange (1).

CAUTION:

For matching mark, use paint. Never damage companion
flange and drive pinion.

Remove the drive pinion lock nut using a flange wrench (com-
mercial service tool).

Remove the companion flange using a puller (commercial ser-
vice tool).

10. Remove the front oil seal using the puller (A) [SST: KV381054S0

(J-34286)].

INSTALLATION

JSDIA0038ZZ

JSDIA0039ZZ

JSDIA0040ZZ

PDIA0980E

FRONT OIL SEAL

DLN-197

< REMOVAL AND INSTALLATION >

[REAR FINAL DRIVE: R230]

DLN

Apply multi-purpose grease to the lips of the new front oil seal.
Then drive the new front oil seal in evenly until it becomes flush
with the gear carrier using the drift (A) [SST: ST15310000 (J-
25640-B)].

CAUTION:

• Never reuse front oil seal.
• Never incline the new front oil seal when installing.

Align the matching mark (B) of drive pinion with the matching
mark (A) of companion flange (1), and then install the compan-
ion flange.

Apply anti-corrosion oil to the thread and seat of new drive pin-
ion lock nut, and temporarily tighten drive pinion lock nut to drive
pinion, using a flange wrench (commercial service tool).

CAUTION:

Never reuse drive pinion lock nut.

Tighten drive pinion lock nut within the limits of specified torque
so as to keep the pinion bearing preload within a standard val-
ues, using the preload gauge (A) [SST: ST3127S000 (J-25765-
A)].

CAUTION:

• Adjust to the lower limit of the drive pinion lock nut tight-

ening torque first.

• If the preload torque exceeds the specified value, replace

collapsible spacer and tighten it again to adjust. Never
loosen drive pinion lock nut to adjust the preload torque.

Fit a test indicator to the inner side of companion flange (socket
diameter).

Rotate companion flange to check for runout.

• If the runout value is outside the runout limit, follow the proce-

dure below to adjust.

- Check for runout while changing the phase between compan-

ion flange and drive pinion by 90

step, and search for the

position where the runout is the minimum.

PDIA0752J

JSDIA0038ZZ

Total preload torque

: A value that add 0.1 – 0.4
N·m (0.01 – 0.04 kg-m, 0.9 –
3.5 in-lb) to the measured
value before removing.

PDIA1007E

Companion flange runout

: Refer to

DLN-222, "Com-

panion Flange Runout"

JPDID0399ZZ

DLN-198

< REMOVAL AND INSTALLATION >

[REAR FINAL DRIVE: R230]

FRONT OIL SEAL

- If the runout value is still outside of the limit after the phase has been changed, possible cause will be an

assembly malfunction of drive pinion and pinion bearing and malfunction of pinion bearing. Check for
these items and repair if necessary.

- If the runout value is still outside of the limit after the check and repair, replace companion flange.

Make a stamping for identification of front oil seal replacement frequency. Refer to “Identification stamp of
replacement frequency of front oil seal”.

CAUTION:

Make a stamping after replacing front oil seal.

Install rear propeller shaft. Refer to

DLN-144, "Removal and Installation"

Install side flange with the following procedure.

Attach the protector [SST: KV38108000 (

—

)] to side oil

seal.

After the side flange is inserted and the serrated part of side
gear has engaged the serrated part of flange, remove the pro-
tector.

Put a suitable drift on the center of side flange, then drive it until
sound changes.
NOTE:
When installation is completed, driving sound of the side flange
turns into a sound that seems to affect the whole final drive.

Confirm that the dimension of the side flanges (1) installation
measurement (A) in the figure comes into the following.

10. Install drive shaft. Refer to

RAX-11, "Removal and Installation"

11. Refill gear oil to the final drive and check oil level. Refer to

DLN-

193, "Refilling"

12. Check the final drive for oil leakage. Refer to

DLN-193, "Inspec-

tion"

SDIA0822E

: 342.2 mm (13.47 in)

JSDIA0185ZZ