Infiniti QX4 (R50). Manual — part 590
SMT811D
55. Thrust needle bearing race
56. Clutch piston
57. D-ring
58. Lip seal
59. Oil gutter
60. Center case
61. Stem bleeder
62. Mainshaft rear bearing
63. Thrust washer
64. Speedometer drive gear
65. Snap ring
66. Rear case
67. ATP switch
68. Neutral-4LO switch
69. Oil seal
70. Magnet
71. Baffle plate
72. Oil strainer
73. O-ring
74. Control valve assembly
75. Lip seal (7 pieces)
76. Filler plug
77. Inner gear
78. Outer gear
79. Oil pump housing
80. Bushing
81. Oil pump shaft
82. Oil pressure check plug
83. Oil pump gasket
84. Sub-oil pump housing
85. Outer gear
86. Inner gear
87. O-ring
88. Sub-oil pump cover
89. O-ring
90. Transfer motor
91. O-ring
92. Oil filter stud
93. O-ring
94. O-ring
95. Oil filter
OVERHAUL
Transfer Components (Cont’d)
TF-122
SMT877C
Rear Case
DISASSEMBLY
NBTF0077
1.
Remove neutral-4LO switch and ATP switch.
2.
Remove bolts.
SMT878C
3.
Remove rear case from center case by tapping it lightly with a
plastic hammer.
SMT883C
Center Case
DISASSEMBLY
NBTF0078
1.
Remove oil pump shaft from main oil pump.
SMT884C
2.
Remove stem bleeder from bleeder hole.
SMT844DB
3.
Remove lock nut from companion flange.
I
Do not reuse lock nut.
GI
MA
EM
LC
EC
FE
AT
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DISASSEMBLY
Rear Case
TF-123
SMT886CA
4.
Remove companion flange.
SMT887C
5.
Remove bolts.
SMT888C
6.
Insert screwdrivers as shown in the figure, and separate cen-
ter case from front case. Then, remove center case by lever-
ing it up with a tire lever or the like.
SMT889C
7.
Remove snap ring from mainshaft.
I
Do not reuse snap ring.
SMT890C
8.
Remove C-rings from mainshaft bearing.
DISASSEMBLY
Center Case (Cont’d)
TF-124
SMT900C
Front Drive Shaft and Drive Chain
NBTF0078S01
1.
Remove oil gutter from center case.
2.
With front drive shaft held by one hand as shown in the figure,
tap center case with a plastic hammer to remove it with drive
chain.
I
Do not tap drive chain with a plastic hammer.
SMT901CB
3.
Set a puller (ST30021000) and an adapter (ST33052000).
Remove front drive shaft front bearing.
SMT902CB
4.
Set the puller (ST30021000) and the adapter (ST33052000).
Remove front drive shaft rear bearing.
SMT903CA
Mainshaft and Clutch Drum
NBTF0078S02
1.
Remove mounting bolts to detach baffle plate.
SMT904C
2.
Set center case to press stand. Remove mainshaft from cen-
ter case.
GI
MA
EM
LC
EC
FE
AT
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DISASSEMBLY
Center Case (Cont’d)
TF-125
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