Infiniti QX56 (JA60). Manual - part 309

 

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Infiniti QX56 (JA60). Manual - part 309

 

 

TRANSFER ASSEMBLY

DLN-159

< DISASSEMBLY AND ASSEMBLY >

[ATX14B]

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g. Remove each retainer plate (1), plug (2), control valve (3) and

spring (4) from the upper body (5).

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.

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

WDIA0284E

SMT009D

Specification

: Less than 0.36 mm (0.0142 in)

SMT010D

Pinion gear end play

: 0.1 - 0.7 mm (0.004 - 0.028 in)

PDIA0185E

DLN-160

< DISASSEMBLY AND ASSEMBLY >

[ATX14B]

TRANSFER ASSEMBLY

• 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 pas-

sage 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 sei-

zure.

• 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.

Bearing

• Make sure the bearings roll freely and are free from noise, pitting

and cracks.

Main Oil Pump

PDIA0186E

SMT008D

SMT944C

SDIA2175E

TRANSFER ASSEMBLY

DLN-161

< DISASSEMBLY AND ASSEMBLY >

[ATX14B]

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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 

DLN-142, "Disassembly

and Assembly"

.

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 

DLN-179, "Inspection

and Adjustment"

.

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-57, "Component Inspection"

 (clutch pressure sole-

noid valve), 

DLN-61, "Component Inspection"

 (2-4WD solenoid

valve), 

DLN-73, "Component Inspection"

 (clutch pressure switch),

DLN-76, "Component Inspection"

 (line pressure switch) and 

DLN-

69, "Component Inspection"

 (transfer fluid temperature sensor).

• Check the sliding faces of the control valves and plugs for abnor-

mality. If any is found, replace the control valve assembly with a

new one. Refer to 

DLN-142, "Disassembly and Assembly"

.

CAUTION:

Replace control valve body together with clutch return spring

as a set.

Specification

: Refer to 

DLN-179, "Inspection and 

Adjustment"

SDIA2174E

Specification

: Refer to 

DLN-179, "Inspection and Ad-

justment"

SDIA2173E

WDIA0199E

SMT947C

DLN-162

< DISASSEMBLY AND ASSEMBLY >

[ATX14B]

TRANSFER ASSEMBLY

• 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

one. Refer to 

DLN-142, "Disassembly and Assembly"

.

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.

Refer to 

DLN-179, "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-179, "Inspection and Adjust-

ment"

.

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.

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.

SMT948C

SMT949C

SDIA2176E

WDIA0284E

 

 

 

 

 

 

 

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