2001 INFINITI QX4 elec

SMT996C
2. Remove bolts to detach transfer cover.
IDo not reuse bolts.
SMT997C
3. Remove oil seal from transfer cover.
IDo not reuse oil seal.
SMT998C
4. Remove snap ring from main gear bearing.
IDo not reuse snap ring.
SMT999C
5. Remove sun gear by tapping it lightly.
SMT001D
6. Remove snap ring from sun gear.
IDo not reuse snap ring as it is a selective part.
7. Remove washer from sun gear.
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DISASSEMBLY
Front Case (Cont'd)
TF-135

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 ªCº from the end of sun gear to the roller surface of
thrust needle bearing.
SMT018D
11. Measure ªDº from the end of sun gear to the main gear bear-
ing contact surface.
12. Calculate end play ªEº using ªCº and ªDº obtained in steps 10
and 11. Select bearing race so that the end play becomes the
standard value.
Calculation formula:
End play ªEº = ªCº þ ªDº
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 ªFº of sun gear is within specifications.
Standard end play ªFº:
0 - 0.15 mm (0 - 0.0059 in)
Snap ring: Refer to SDS, TF-159.
SMT022D
16. Install the selected snap ring.
IDo 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.
IDo 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:
IRemove all foreign materials such as water, oil, and
grease from mating surfaces of front case and transfer
cover.
IPrevent 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)
IDo not reuse bolts.
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ASSEMBLY
Front Case (Cont'd)
TF-143

SMT969C
2. Set clutch piston to a clutch piston attachment (KV31103400).
SMT970C
3. Set the clutch piston attachment to center case, and install
clutch piston, tap it lightly.
4. Install slide needle bearing race to clutch piston.
SMT915C
5. Remove all the liquid gasket from oil pressure check port and
inside center case. With oil pressure check plug threaded in 1
or 2 pitches, apply gasket fluid 1215 (Three Bond) to the thread
of plug, and tighten.
: 10 - 17 N´m (1.0 - 1.7 kg-m, 87 - 148 in-lb)
6. Install mainshaft and clutch drum. Refer to ªMainshaft and
Clutch Drumº, TF-149.
SMT972C
Mainshaft and Clutch DrumNBTF0083S061. Install drive plates, driven plates and press flange to clutch
hub.
2. Place clutch hub on a surface plate and measure dimension
ªAº between snap ring mounting surface of press flange and
clutch drum sliding face of clutch hub.
CAUTION:
Measure at least 2 points, and take an average.
SMT973C
3. Measure dimension ªBº between the gear end of mainshaft
and the snap ring mounting portion.
4. Calculate end play using dimension ªAº and dimension ªBº
(obtained in steps 2 and 3), and select proper retaining plate
so that the end play is within specifications.
Calculation formula:
End play = B þ A þ Retaining plate thickness
Standard end play:
0.2 - 0.5 mm (0.008 - 0.020 in)
Retaining plate:
Refer to SDS, TF-158.
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ASSEMBLY
Center Case (Cont'd)
TF-149