2010 INFINITI QX56 Factory Service Manual

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Page 1297 of 4210

INFINITI QX56 2010 Factory Service Manual FRONT FINAL DRIVEDLN-215
< REMOVAL AND INSTALLATION > [FRONT FINAL DRIVE: M205]
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REMOVAL AND INSTALLATION
FRONT FINAL DRIVE
Removal and InstallationINFOID:0000000005148

Page 1298 of 4210

INFINITI QX56 2010 Factory Service Manual DLN-216
< REMOVAL AND INSTALLATION >[FRONT FINAL DRIVE: M205]
FRONT FINAL DRIVE
7. Remove the front final drive assembly bolts, then remove the
front final drive assembly.
CAUTION:
Support the front f

Page 1299 of 4210

INFINITI QX56 2010 Factory Service Manual FRONT FINAL DRIVEDLN-217
< DISASSEMBLY AND ASSEMBLY > [FRONT FINAL DRIVE: M205]
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FRONT FINAL DRIVE
Disassembly and AssemblyINFOID:0000000005148

Page 1300 of 4210

INFINITI QX56 2010 Factory Service Manual DLN-218
< DISASSEMBLY AND ASSEMBLY >[FRONT FINAL DRIVE: M205]
FRONT FINAL DRIVE
ASSEMBLY INSPECTION AND ADJUSTMENT
• Drain the differential gear oil before inspection and adjustment. Refer to
DLN-2

DLN-218
< DISASSEMBLY AND ASSEMBLY >[FRONT FINAL DRIVE: M205]
FRONT FINAL DRIVE
ASSEMBLY INSPECTION AND ADJUSTMENT
• Drain the differential gear oil before inspection and adjustment. Refer to
DLN-209, "Changing Front Differen-
tial Gear Oil".
• Remove and install the carrier cover as neces sary for inspection and adjustment. Refer to DLN-214,
"Removal and Installation".
Total Preload Torque
1. Install the differential side shaft and differential side flange if necessary.
CAUTION:
The differential side shaft and differential side flan ge must be installed in order to measure total
preload torque.
2. Rotate the drive pinion back and forth 2 to 3 times to check for unusual noise and rotation malfunction.
3. Rotate the drive pinion at least 20 times to check for smooth operation of the bearings.
4. Measure total preload torque using Tool.
NOTE:
Total preload torque = Drive pinion bearing preload torque +
Side bearing preload torque
• If the measured value is out of the specification, check and adjust each part. Adjust the drive pinion
bearing preload torque first, then adjust the side bearing preload torque.
Drive Gear Runout
1. Fit a dial indicator to the drive gear back face.
2. Rotate the drive gear to measure runout.
• If the runout is outside of the limit , check the condition of the drive
gear assembly. Foreign material may be caught between the drive
gear and differential case, or the differential case or drive gear may
be deformed.
CAUTION:
Replace drive gear and drive pinion as a set.
Tooth Contact
28. Plate 29. Differential case30. Drive gear
31. Side bearing cap 32. Filler plug33. Carrier cover
34. Bushing 35. Bearing36 Screw
37 Dowel pin
Tool number : ST3127S000 (J-25765-A)
Total preload torque : Refer to DLN-234, "
Inspection and Adjust-
ment"
PDIA0697E
If the total preload torque is greater than specification
On drive pinion bearings: R eplace the collapsible spacer.
On side bearings: Loosen the side bearing adjuster by the same amount on each side.
If the total preload torque is less than specification On drive pinion bearings: Tighten the drive pinion lock nut.
On side bearings: Tighten the side bearing adjuster by the same amount on each side.
Runout limit: 0.08 mm (0.0031 in) or less
SPD886
Revision: April 20092010 QX56

Page 1301 of 4210

INFINITI QX56 2010 Factory Service Manual FRONT FINAL DRIVEDLN-219
< DISASSEMBLY AND ASSEMBLY > [FRONT FINAL DRIVE: M205]
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1. Apply red lead to the drive gear. NOTE:
Apply red lead to both faces of thr ee to fo

Page 1302 of 4210

INFINITI QX56 2010 Factory Service Manual DLN-220
< DISASSEMBLY AND ASSEMBLY >[FRONT FINAL DRIVE: M205]
FRONT FINAL DRIVE
Backlash
1. Fit a dial indicator to the drive gear face to measure the back-
lash.
• If the backlash is outside of t h

Page 1303 of 4210

INFINITI QX56 2010 Factory Service Manual FRONT FINAL DRIVEDLN-221
< DISASSEMBLY AND ASSEMBLY > [FRONT FINAL DRIVE: M205]
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2. Remove the differential side shaft and differential side flange using suitable tool.

Page 1304 of 4210

INFINITI QX56 2010 Factory Service Manual DLN-222
< DISASSEMBLY AND ASSEMBLY >[FRONT FINAL DRIVE: M205]
FRONT FINAL DRIVE
7. For proper reinstallation, paint matching marks on one side of
the side bearing cap and gear carrier.
CAUTION:
• Fo

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