Infiniti QX4 (R50). Manual — part 595
SMT016D
6.
Install thrust needle bearing to sun gear.
7.
Install sun gear to planetary carrier.
SMT017D
8.
Set a support (KV40105500) to bushing replacer puller
(ST30911000) as shown in the figure, and place planetary
carrier on it.
9.
Install thrust needle bearing to planetary carrier with its roller
facing front case.
10. Measure “C” from the end of sun gear to the roller surface of
thrust needle bearing.
SMT018D
11. Measure “D” from the end of sun gear to the main gear bear-
ing contact surface.
12. Calculate end play “E” using “C” and “D” obtained in steps 10
and 11. Select bearing race so that the end play becomes the
standard value.
Calculation formula:
End play “E” = “C” − “D”
Standard end play:
0.1 - 0.25 mm (0.0039 - 0.0098 in)
Bearing race:
Refer to SDS, TF-159.
SMT019D
13. Set planetary carrier to press in the status described in step 8.
Then install the selected bearing race to planetary carrier.
SMT020D
14. Install front case to planetary carrier. Set a support ring
(KV40105310) and an adapter B (KV40105230) to main gear
bearing inner race, then press it.
ASSEMBLY
Front Case (Cont’d)
TF-142
SMT021D
15. Install washer to sun gear assembly, and select proper snap
ring so that end play “F” of sun gear is within specifications.
Standard end play “F”:
0 - 0.15 mm (0 - 0.0059 in)
Snap ring: Refer to SDS, TF-159.
SMT022D
16. Install the selected snap ring.
I
Do not reuse snap rings.
17. Apply ATF to the periphery of new transfer cover oil seal, and
attach it at 1.5 mm (0.059 in) from the transfer cover and face.
I
Do not reuse oil seal.
SMT023D
18. Apply sealing fluid (Locktite 518·C1335 x 25) to transfer cover
mounting surface of front case as shown in the figure.
CAUTION:
I
Remove all foreign materials such as water, oil, and
grease from mating surfaces of front case and transfer
cover.
I
Prevent sealing fluid from entering into oil holes of front
case.
SMT024D
19. Align oil hole of front case with notch of transfer cover, and
tighten bolts.
: 49 - 58 N·m (5.0 - 5.9 kg-m, 36 - 43 ft-lb)
I
Do not reuse bolts.
GI
MA
EM
LC
EC
FE
AT
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
ASSEMBLY
Front Case (Cont’d)
TF-143
SMT995C
20. Apply petroleum jelly to radial needle bearing, and install it
inside sun gear.
21. Install shift rod assembly to front case assembly. Refer to “Shift
Rod Assembly”, TF-144.
22. Install center case assembly to front case assembly. Refer to
“Final Assembly”, TF-153.
23. Install rear case assembly to center case. Refer to “Final
Assembly”, TF-153.
SMT994C
Shift Rod Assembly
NBTF0082S02
1.
Install fork guide, shift fork spring, 2-4 fork, and L-H fork to shift
rod, and secure them with roll pins.
I
Do not reuse roll pins.
SMT992C
2.
Install 2-4 sleeve and L-H sleeve to each fork.
SMT991C
3.
While aligning L-H sleeve with planetary carrier, install shift rod
assembly to front case.
SMT990C
4.
Remove all the liquid gasket on check plug and front case, and
install check ball and check spring to front case. Apply gasket
fluid 1215 (Three Bond) to check plug, install it to front case,
and tighten it to specified torque.
I
With plug bolt threaded one pitch into the hole, apply gasket
fluid 1215 (Three Bond) to the thread.
: 19 - 25 N·m (1.9 - 2.5 kg-m, 14 - 18 ft-lb)
5.
Remove all the liquid gasket on the switch fitting and inner side
of front case, and with wait detection switch threaded one pitch
into the hole, apply gasket fluid 1215 (Three Bond) to the
thread, install it, and tighten it to specified torque.
ASSEMBLY
Front Case (Cont’d)
TF-144
: 15 - 20 N·m (1.5 - 2.0 kg-m, 11 - 14 ft-lb)
I
Wait detection switch harness connector is black.
6.
Install center case assembly to front case assembly. Refer to
“Final Assembly”, TF-153.
7.
Install rear case assembly to center case. Refer to “Final
Assembly”, TF-153.
SMT951C
Center Case
ASSEMBLY
NBTF0083
Oil Filter
NBTF0083S01
1.
Apply ATF or petroleum jelly to new O-ring, and install it to oil
filter stud.
I
Do not reuse O-rings.
2.
Install oil filter stud to center case, and tighten it.
: 25 - 35 N·m (2.6 - 3.6 kg-m, 19 - 26 ft-lb)
SMT939C
3.
Apply ATF or petroleum jelly to two new O-rings, and install
them to oil filter.
I
Do not reuse O-rings.
4.
Install oil filter to center case and tighten bolts.
: 7 - 9 N·m (0.7 - 0.9 kg-m, 61 - 78 in-lb)
I
Do not knock oil filter with a tool such as a hammer.
SMT935C
Sub-oil Pump
NBTF0083S02
1.
Install new oil pump gasket to center case by aligning it with
dowel pin inside the center case.
I
Do not reuse gaskets.
SMT936C
2.
Install outer gear* and inner gear to sub-oil pump housing, and
measure
side
clearance.
Refer
to
“Sub-oil
Pump”,
“INSPECTION”, TF-138.
3.
Set new O-ring to sub-oil pump housing, and install sub-oil
pump cover.
I
Do not reuse O-rings.
*
Identification mark “
H
” is placed on the side of sub-oil pump
cover.
GI
MA
EM
LC
EC
FE
AT
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
ASSEMBLY
Front Case (Cont’d)
TF-145
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