Nissan X-Trail 32. Manual - part 698

DRIVE PINION

DLN-203

< UNIT DISASSEMBLY AND ASSEMBLY >

[TRANSFER: TY30A]

DLN

• Measure dimension from ring gear mounting surface of ring

gear shaft to ring gear shaft bearing (transfer case side)
mounting surface with a pair of vernier calipers. Refer to “Mea-
suring point”.

Dimension “J” measurement

• Measure dimension from outer race edge surface of ring gear

shaft bearing (transfer case side) to inner race edge surface
with a pair of vernier calipers. Refer to “Measuring point”.

Calculate dimension “N” by the formula below.

Convert the dimensions “F”, “G”, “H”, “I”, “J” and “N” according to the standards below.

Check dimension “Z” (machining difference) on the ring gear
back surface.
NOTE:
Dimension “Z” indicates difference between optimum engage-
ment and the standard dimensions in increments of 0.01 mm
(0.0004 in) written on the ring gear back surface.

Calculate the thickness of the ring gear adjusting shim (transfer
case side) “T

” by the formula below.

Select ring gear adjusting shim (transfer case side). For selecting adjusting shim, refer to the latest parts
information.

CAUTION:

• Only one adjusting shim can be selected.
• Select the closest one, favoring thicker over thinner when necessary if no adjusting shim with

the calculated value is available.

Drive Pinion Adjusting Shim

JSDIA0257ZZ

SDIA3128J

Dimension “N” = “C”

0.5 mm (0.020 in) + “D”

“F”

: Actual value regarding 122.60 mm (4.83 in) as 0 in increments of 0.01 mm (0.0004 in).

“G”

: Actual value regarding 26.60 mm (1.0472 in) as 0 in increments of 0.01 mm (0.0004 in).

“H”

: Actual value regarding 48.60 mm (1.9134 in) as 0 in increments of 0.01 mm (0.0004 in).

“I”

: Actual value regarding 119.40 mm (4.70 in) as 0 in increments of 0.01 mm (0.0004 in).

“J”

: Actual value regarding 16.25 mm (0.6398 in) as 0 in increments of 0.01 mm (0.0004 in).

“N”

: Actual value regarding 55.00 mm (2.1654 in) as 0 in increments of 0.01 mm (0.0004 in).

“T

” = (“F” – “G” + “H” – “I” – “J” – “N” + “Z”)

0.01 mm

(0.0004 in) + 1.65 mm (0.0650 in)

SDIA3129J

DLN-204

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[TRANSFER: TY30A]

DRIVE PINION

Check the dimension “U” (machining difference) between old
and new drive pinions when hypoid gear set (drive pinion and
ring gear) has been replaced.
(Assemble new drive pinion adjusting shims with the same thick-
ness as the ones removed prior to disassembly or removed
drive pinion adjusting shims when reusing the hypoid gear set.)
NOTE:
Dimension “U” indicates the difference between optimum
engagement and the standard dimensions in increments of 0.01
mm (0.0004 in). It is written on the gear end of the drive pinion
for reference.

Calculate the thickness of the drive pinion adjusting shim “T” by
the formula below.

Select drive pinion adjusting shim. For selecting adjusting shim, refer to the latest parts information.

CAUTION:

• Only one adjusting shim can be selected.
• Select the closest one, if no adjusting shim with the calculated value is available.

Inspection

INFOID:0000000011005063

INSPECTION AFTER DISASSEMBLY

Check items below. If necessary, replace them with new ones.

Gear and Shaft

Check gear face and shaft for wear, cracks, damage, and seizure.

CAUTION:

Replace ring gear and drive pinion as a set (hypoid gear set) if any malfunction is detected on the ring
gear or drive pinion.

Bearing

Check for seizure, peeling, wear, corrosion, sticking, unusual noise, roughness in hand turning, and other
damage.

CAUTION:

Always replace inner race and outer race as a pair when replacing the bearing.

Shim

Check for seizure, damage, and unusual wear.

Case

Check the bearing mounting surface for wear, cracks and damages.

“T” = T

+ [(t

– t

)

0.01 mm (0.0004 in)]

“T”

: Thickness of new shim

: Thickness of old shim

: Dimension “U” displayed on the gear end of
old drive pinion

: Dimension “U” displayed on the gear end of
new drive pinion

[Example]

“T” = 3.21 + [(2 + 1)

0.01 mm (0.0004 in)]

: 3.21

: +2

−

SDIA3131J

TRANSFER CASE

DLN-205

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[TRANSFER: TY30A]

DLN

TRANSFER CASE

Exploded View

INFOID:0000000011005111

Adapter case oil seal (outer)

O-ring (outer)

Adapter case oil seal (inner)

Adapter case

O-ring (inner)

Ring gear shaft

Ring gear adjusting shim
(adapter case side)

Ring gear shaft bearing
(adapter case side)

Ring gear

Ring gear nut

Ring gear shaft bearing
(transfer case side)

Ring gear adjusting shim
(transfer case side)

Transfer case

Air breather hose

Air breather tube

Gasket

Filler plug

Drain plug

Plug

Drive pinion

Drive pinion adjusting shim

Drive pinion bearing (front side)

Collapsible spacer

Drive pinion bearing (rear side)

Drive pinion oil seal

Companion flange

Lock nut

Oil seal lip

: N·m (kg-m, ft-lb)

: Always replace after every disassembly.

JSDIA0319GB

DLN-206

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[TRANSFER: TY30A]

TRANSFER CASE

Disassembly and Assembly

INFOID:0000000011005070

DISASSEMBLY

Remove adapter case. Refer to

DLN-185, "Disassembly and Assembly"

Remove ring gear shaft assembly. Refer to

DLN-188, "Disassembly and Assembly"

Remove drive pinion assembly. Refer to

DLN-193, "Disassembly and Assembly"

Tap the outer race of drive pinion bearing from transfer case with
a brass rod to remove outer race of drive pinion bearing (front
side and rear side).

CAUTION:

Never damage transfer case.

Remove air breather hose from transfer case.

CAUTION:

Never damage air breather hose.

Remove air breather tube from transfer case.

Remove the filler plug and drain plug from the transfer case, and
then remove each gasket.

Remove plug from transfer case.

ASSEMBLY

Install outer race of drive pinion bearing (front side) to the trans-
fer case with drifts and bushing remover.

CAUTION:

• Never reuse drive pinion bearing (front side).
• Apply gear oil to the drive pinion bearing (front side)