Nissan Pathfinder (2012 year). Instruction — part 201
TRANSFER ASSEMBLY
DLN-173
< UNIT DISASSEMBLY AND ASSEMBLY >
[TRANSFER: ATX14B]
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• Make sure the bearings roll freely and are free from noise, pitting
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
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
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
DLN-63, "Component Inspection"
(clutch pressure sole-
noid valve),
DLN-67, "Component Inspection"
(2-4WD solenoid
valve),
DLN-79, "Component Inspection"
(clutch pressure switch),
DLN-82, "Component Inspection"
(transfer fluid temperature sensor).
SDIA2175E
Specification
Refer to
SDIA2174E
Specification
Refer to
SDIA2173E
WDIA0199E
August 2012
2012 Pathfinder
DLN-174
< UNIT DISASSEMBLY AND ASSEMBLY >
[TRANSFER: ATX14B]
TRANSFER ASSEMBLY
• Check the sliding faces of the control valves and plugs for abnor-
mality. If any is found, replace the control valve assembly with a
DLN-191, "Inspection and Adjustment"
CAUTION:
Replace control valve body together with clutch return spring
as a set.
• Check each control valve spring for damage or distortion. Also
check its free length, outer diameter and wire diameter. If any dam-
age or fatigue is found, replace the control valve body with a new
DLN-191, "Inspection and Adjustment"
CAUTION:
Replace control valve body together with clutch return spring
as a set.
Clutch
• Check the drive plate facings and driven plate for damage, cracks
or other abnormality. If any abnormalities are found, replace with a
new one.
• Check the thickness of the drive plate facings and driven plate.
DLN-191, "Inspection and Adjustment"
CAUTION:
• Measure facing thickness at 3 points to take an average.
• Check all drive and driven plates.
• Check return spring for damage or deformation.
• Do not remove spring from plate.
Return Spring
• Check the stamped mark shown. Then, check that the free lengths,
(include thickness of plate) are within specifications. If any abnor-
mality is found, replace with a new return spring assembly of the
same stamped number. Refer to
DLN-191, "Inspection and Adjust-
.
ASSEMBLY
Control Valve Assembly
1. Assemble the control valve assembly with the following procedure.
CAUTION:
• Do not reuse any part that has been dropped or damaged.
• Make sure valve is assembled in the proper direction.
• Do not use a magnet because residual magnetism stays during assembly.
SMT947C
SMT948C
SMT949C
SDIA2176E
August 2012
2012 Pathfinder
TRANSFER ASSEMBLY
DLN-175
< UNIT DISASSEMBLY AND ASSEMBLY >
[TRANSFER: ATX14B]
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a. Clean the upper body (5), control valves (3) and springs (4) with
cleaning agent, and dry with compressed air.
b. Dip the control valves in ATF, and apply ATF to the valve-mount-
ing area of the upper body.
c. Install each control valve (3), springs (4), and plugs (2) to the
upper body (5), and install retainer plates (1) to hold them in
place.
CAUTION:
• To insert control valves into upper body, place upper
body on a level surface in order to prevent flaw or dam-
age.
• Make sure each control valve is smoothly inserted.
d. Install the reverse balls, relief balls and relief springs, accumula-
tor pistons and valve springs to the upper body.
e. Install the lower body and separator plate to the upper body.
CAUTION:
Do not reuse separator plate.
f.
With the lower body down, tighten the two bolts shown.
g. Apply ATF to the new O-rings, and install them to each solenoid
valve, switch and terminal body.
CAUTION:
Do not reuse O-rings.
h. Install the following to the control valve assembly:
• Clutch pressure solenoid valve
• Clutch pressure switch
• 2-4WD shift solenoid valve
• Line pressure switch
• Transfer fluid temperature sensor
WDIA0284E
SDIA2127E
SDIA2126E
WDIA0200E
WDIA0198E
August 2012
2012 Pathfinder
DLN-176
< UNIT DISASSEMBLY AND ASSEMBLY >
[TRANSFER: ATX14B]
TRANSFER ASSEMBLY
Center Case
1. Apply ATF to the new O-ring, and install it on the oil filter stud.
CAUTION:
Do not reuse O-rings.
2. Install the oil filter stud to the oil filter.
3. Apply ATF to the two new O-rings (1), and install them on the oil
filter (2).
CAUTION:
Do not reuse O-rings.
4. Install the oil filter to the center case. Tighten the bolts to the
specified torque. Refer to
DLN-154, "Component Parts Loca-
CAUTION:
• Do not damage oil filter.
• Attach oil filter and tighten bolts evenly.
5. Install the outer gear and inner gear into the sub oil pump hous-
ing, and measure the side clearance. Refer to
.
SDIA3180E
WDIA0285E
SDIA2136E
SDIA2135E
August 2012
2012 Pathfinder
TRANSFER ASSEMBLY
DLN-177
< UNIT DISASSEMBLY AND ASSEMBLY >
[TRANSFER: ATX14B]
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6. Align the dowel pin hole and bolt hole of the sub oil pump
assembly with the center case. Install the sub oil pump cover.
Then tighten to the specified torque. Refer to
7. Apply ATF to the new O-ring and install it to the transfer motor.
CAUTION:
Do not reuse O-rings.
8. Fit the double-flat end of the transfer motor shaft into the slot of
the sub-oil pump assembly. Then tighten to the specified torque.
DLN-154, "Component Parts Location"
.
CAUTION:
Be sure to install connector bracket.
9. Apply ATF to the new lip seals, and install them to the center
case.
CAUTION:
• Do not reuse lip seals.
• There are 2 kinds of lip seals (lip seal of large inner diam-
eter: 5 pieces, lip seal of small inner diameter: 2 pieces).
Confirm their position for installation.
10. Install the control valve assembly to the center case, and tighten
to the specified torque. Refer to
CAUTION:
• Do not reuse any part that has been dropped or damaged.
• Make sure valve is assembled in the proper direction.
• Do not use a magnet because residual magnetism stays
during assembly.
11. Install the connector assembly into the center case, and secure
with a snap ring.
SDIA2328E
SDIA2787E
SDIA2123E
SDIA2121E
SDIA2122E
August 2012
2012 Pathfinder
DLN-178
< UNIT DISASSEMBLY AND ASSEMBLY >
[TRANSFER: ATX14B]
TRANSFER ASSEMBLY
12. Apply ATF to the new O-rings, and install them on the oil
strainer.
CAUTION:
Do not reuse O-rings.
13. Install the oil strainer to the control valve assembly.
14. Tighten the bolts to the specified torque. Refer to
15. Apply ATF to the new D-rings, and install them to the clutch pis-
ton.
CAUTION:
Do not reuse D-rings.
16. Install the thrust needle bearing race to the clutch piston.
17. 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.
SDIA2782E
SDIA2119E
SDIA2781E
SDIA2189E
SDIA2190E
August 2012
2012 Pathfinder
TRANSFER ASSEMBLY
DLN-179
< UNIT DISASSEMBLY AND ASSEMBLY >
[TRANSFER: ATX14B]
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18. 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.
19. 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
•
Use Genuine Silicone RTV or equivalent. Refer to
"Recommended Chemical Products and Sealants"
.
CAUTION:
Do not reuse oil pressure check plug.
20. Install the new snap ring to the clutch hub using suitable tool.
CAUTION:
Do not reuse snap ring.
21. Apply petroleum jelly to the needle bearing, and install the nee-
dle bearing, spacer, clutch drum and clutch hub to the main-
shaft.
22. Install the new snap ring to the mainshaft.
CAUTION:
Do not reuse snap rings.
SDIA3188E
WDIA0101E
WDIA0129E
SDIA2192E
August 2012
2012 Pathfinder
DLN-180
< UNIT DISASSEMBLY AND ASSEMBLY >
[TRANSFER: ATX14B]
TRANSFER ASSEMBLY
23. Apply ATF each plate, then install them into the clutch drum as
shown.
24. Install the return spring assembly into the clutch hub.
25. Install the press flange by aligning the notches to the clutch hub
as shown.
26. Press the press flange to install the new snap ring into snap ring
groove on mainshaft using Tools.
CAUTION:
Do not reuse snap ring.
27. Install the new snap ring to the mainshaft using suitable tool.
CAUTION:
Do not reuse snap ring.
SDIA2193E
SMT911C
SDIA2194E
Tool number
(A): ST22452000 (J-34335)
(B): ST30911000 ( — )
(C): KV31103300 ( — )
SDIA2111E
SDIA2112E
August 2012
2012 Pathfinder
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