check oil INFINITI QX56 2006 Factory Service Manual

TRANSFER ASSEMBLYTF-163
CE F
G H
I
J
K L
M A
B
TF
Revision: November 2009 2006 QX56
42. Remove the O-rings (1) from the oil filter (2).
43. Remove the oil filter stud from the oil filter.
44. Remove the O-ring from the oil filter stud.
INSPECTION AFTER DISASSEMBLY
Shift Rod Components

Check the working face of the shift rod and fork for wear, partial
wear, bending and other abnormality. If any is found, replace
with a new one.

Measure the clearance between the shift fork and sleeve. If it is
out of specification, replace it with a new one.
WDIA0285E
SDIA3180E
SMT009D
Specification : Less than 0.36 mm (0.0142 in)
SMT010D

TF-164
TRANSFER ASSEMBLY
Revision: November 20092006 QX56
Planetary Carrier

Measure the end play of each pinion gear. If it is out of specifica-
tion, replace the planetary carrier assembly with a new one.

Check the working face of each gear and bearing for damage,
burrs, partial wear, dents and other abnormality. If any is found,
replace the planetary carrier assembly with a new one.
Sun Gear

Check if the oil passage of the sun gear assembly is clogged.
For this, try to pass a 3.6 mm (0.142 in) dia. pin through the oil
passage as shown.

Check the sliding and contact surface of each gear and bearing
for damage, burrs, partial wear, dents, and other abnormality. If
any is found, replace the sun gear assembly with a new one.
Internal Gear

Check the internal gear teeth for damage, partial wear, dents
and other abnormality. If any is found, replace the internal gear
with a new one.
Gears and Drive Chain

Check the gear faces and shaft for wear, cracks, damage, and
seizure.

Check the surfaces which contact the sun gear, clutch drum,
clutch hub, press flange, clutch piston and each bearing for
damage, peel, partial wear, dents, bending, or other abnormal
damage. If any is found, replace with a new one.Pinion gear end play : 0.1 - 0.7 mm (0.004 - 0.028 in)
PDIA0185E
PDIA0186E
SMT008D
SMT944C

TRANSFER ASSEMBLYTF-165
CE F
G H
I
J
K L
M A
B
TF
Revision: November 2009 2006 QX56
Bearing

Make sure the bearings roll freely and are free from noise, pit-
ting and cracks.
Main Oil Pump
1. Check the inner and outer circumference, tooth face, and side-
face of the inner and outer gears for damage or abnormal wear.
2. Measure the side clearance between the main oil pump housing edge and the inner and outer gears.
3. Make sure the side clearance is within specification. If the mea- surement is out of specification, replace the inner and outer
gears with new ones as a set. Refer to TF-165, "
Main Oil Pump"
.
Sub-oil Pump
1. Check the inner and outer circumference, tooth face, and side-
face of the inner and outer gears for damage or abnormal wear.
2. Measure the side clearance between the sub oil pump housing edge and the inner and outer gears.
3. Make sure the side clearance is within specification. If the mea- surement is out of specification, replace the inner and outer
gears with new ones as a set. Refer to TF-165, "
Sub-oil Pump" .
Control Valve

Check resistance between the terminals of the clutch pressure
solenoid valve, 2-4WD shift solenoid valve, clutch pressure
switch, line pressure switch and the transfer fluid temperature
sensor. Refer to TF-90, "
COMPONENT INSPECTION" (clutch
pressure solenoid valve), TF-94, "
COMPONENT INSPECTION"
(2-4WD solenoid valve), TF-107, "COMPONENT INSPECTION"
(clutch pressure switch), TF-110, "COMPONENT INSPECTION"
(line pressure switch) and TF-104, "COMPONENT INSPEC-
TION" (transfer fluid temperature sensor).
SDIA2175E
Specification : 0.015 - 0.035 mm (0.0006 - 0.0014 in)
SDIA2174E
Specification : 0.015 - 0.035 mm (0.0006 - 0.0014 in)
SDIA2173E
WDIA0199E

TRANSFER ASSEMBLYTF-171
CE F
G H
I
J
K L
M A
B
TF
Revision: November 2009 2006 QX56
17. Install the thrust needle bearing race to the clutch piston.
18. Install the clutch piston to the center case as shown.
CAUTION:
Install so the fitting protrusion of clutch piston aligns with
the dent of center case.
19. Remove all the sealant from the oil pressure check port and inside the center case.
CAUTION:
Remove old sealant adhering to mating surfaces. Also
remove any moisture, oil, or foreign material adhering to
application and mating surfaces.
20. Thread the new oil pressure check plug in 1 or 2 pitches and apply sealant to the oil pressure check plug threads. Tighten to
the specified torque. Refer to TF-146, "
COMPONENTS" .

Use Genuine Silicone RTV or equivalent. Refer to GI-46,
"RECOMMENDED CHEMICAL PRODUCTS AND SEAL-
ANTS" .
CAUTION:
Do not reuse oil pressure check plug.
21. Install the new snap ring to the clutch hub using suitable tool. CAUTION:
Do not reuse snap ring.
SDIA2189E
SDIA2190E
SDIA3188E
WDIA0101E

TRANSFER ASSEMBLYTF-181
CE F
G H
I
J
K L
M A
B
TF
Revision: November 2009 2006 QX56
24. Install the new companion flange self-lock nut. Tighten to the
specified torque using Tool. Refer to TF-146, "
COMPONENTS" .
CAUTION:
Do not reuse self-lock nut.
25. Remove all the sealant from the check plug, switch mating sur- face and front case.
CAUTION:
Remove old sealant adhering to mating surfaces. Also
remove any moisture, oil, or foreign material adhering to
application and mating surfaces.
26. Install the check ball and check spring to the front case. Apply silicone gasket, to the check plug and wait detection switch and
install them to the front case. Tighten to the specified torque.
Refer to TF-146, "
COMPONENTS" .

Use Genuine Silicone RTV or equivalent. Refer to GI-46,
"RECOMMENDED CHEMICAL PRODUCTS AND SEAL-
ANTS" .
NOTE:
Wait detection switch harness connector is black.
27. Install the new oil seal in the front case using Tool.
CAUTION:

Do not reuse oil seal.

Apply petroleum jelly to seal lip before installing.
28. Install the shift lever to the shift cross.
29. Install the lock pin and lock pin nut. Tighten to the specified torque. Refer to TF-146, "
COMPONENTS" .
Rear Case
1. Apply petroleum jelly to the circumference of the new rear oil
seal. Install the new rear oil seal so that it is flush with the case
tip face using Tool.
CAUTION:

Do not reuse oil seal.

Apply petroleum jelly to seal lip before installing.Tool number : KV40104000 ( — )
WDIA0219E
Tool number : ST22360002 (J-25679-01)
WDIA0158E
SDIA2182E
Tool number : ST30720000 (J-25405)
SDIA2204E

SERVICE DATA AND SPECIFICATIONS (SDS)TF-183
CE F
G H
I
J
K L
M A
B
TF
Revision: November 2009 2006 QX56
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
General SpecificationsEDS003BH
Inspection and AdjustmentEDS003BI
CLEARANCE BETWEEN INNER GEAR AND OUTER GEAR
Unit: mm (in)
CLUTCH
Unit: mm (in)
PINION GEAR END PLAY
Unit: mm (in)
CLEARANCE BETWEEN SHIFT FORK AND SLEEVE
Unit: mm (in)
SELECTIVE PARTS
Sub-oil Pump
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information. Applied model
VK56DE
Transfer model ATX14B
Fluid capacity (Approx.) (US qt, lmp qt) 3.0 (3-1/8, 2-5/8)
Gear ratio High
1.000
Low 2.596
Number of teeth Sun gear
57
Internal gear 91
Front drive sprocket 38
Front drive shaft 38
ItemSpecification
Main oil pump 0.015 - 0.035 (0.0006 - 0.0014)
Sub-oil pump 0.015 - 0.035 (0.0006 - 0.0014)
ItemLimit value
Drive plate 1.4 (0.055)
ItemStandard
Pinion gear end play 0.1 - 0.7 (0.004 - 0.028)
ItemStandard
Shift fork and sleeve Less than 0.36 (0.0142)
Gear thicknessPart number*
Inner gear Outer gear
9.27 - 9.28 (0.3650 - 0.3654) 31346 0W46231347 0W462
9.28 - 9.29 (0.3654 - 0.3657) 31346 0W46131347 0W461
9.29 - 9.30 (0.3657 - 0.3661) 31346 0W46031347 0W460

TF-184
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: November 20092006 QX56
Main Oil Pump
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information.
Control Valve
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information.
Control Valve Spring
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information.
Return Spring
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information. Gear thickness
Part number*
Inner gear Outer gear
8.27 - 8.28 (0.3256 - 0.3260) 31346 7S11231347 7S112
8.28 - 8.29 (0.3260 - 0.3264) 31346 7S11131347 7S111
8.29 - 8.30 (0.3264 - 0.3268) 31346 7S11031347 7S110
Mounting position (Part name) Part number*Outer dia.Overall length
L1 (2-4 shift valve) 31772 21X008.0 (0.315)38.5 (1.516)
L2 (Clutch valve) 31772 80X1110.0 (0.394)40.0 (1.575)
L4 (Pilot valve) 31772 80X1110.0 (0.394)40.0 (1.575)
L5 (Regulator valve) 31741 0W41012.0 (0.472)68.0 (2.677)
Mounting position (Part name) Part number* Free length Outer dia. Overall length
L1 (2-4 shift valve spring) 31742 2W500 31.85 (1.2539) 7.0 (0.276) 0.6 (0.024)
L2 (Clutch valve spring) 31742 2W505 40.6 (1.598) 8.9 (0.350) 0.7 (0.028)
L4 (Pilot valve spring) 31742 0W410 28.1 (1.106) 9.0 (0.354) 1.2 (0.047)
L5 (Regulator valve spring) 31742 2W515 39.7 (1.563) 11.0 (0.433) 1.3 (0.051)
Stamped markPart number*Free length
1 31521 7S11142.7 (1.168)
2 31521 7S11243.1 (1.697)
3 31521 7S11343.6 (1.717)
4 31521 7S11444.0 (1.731)

REAR WIPER AND WASHER SYSTEMWW-51
C
DE
F
G H
I
J
L
M A
B
WW
Revision: November 2009 2006 QX56
Rear Washer Tube LayoutEKS00BEQ
NOTE:
Connect the check valve (2) to the washer fluid reservoir tube (1) so
that the directional arrow on the check valve (2) points towards the
washer nozzle tube (3).
Rear Washer NozzleEKS00BER
REMOVAL AND INSTALLATION
Removal
1. Remove the rear spoiler. Refer to EI-26, "REAR SPOILER" .
2. Release retaining clips, and remove washer nozzle.
INSTALLATION
Installation is in the reverse order of removal.
Removal and InstallationEKS00BET
REAR WIPER AND WASHER SWITCH
Refer to WW-30, "Wiper and Washer Switch" .
WKIA4566E
1. Rear washer nozzle 2. Washer fluid reservoir3. Check valve
WKIA4242E
LKIA0418E