Page 3113 of 3383

TF-8
PREPARATION
Revision: November 20092006 QX56
KV31103300
(— )
DriftRemoving press flange snap ring
Installing press flange snap ring
Installing carrier bearing
a: 76.3 mm (3.004 in) dia.
b: 130 mm (5.12 in)
KV38100300
(J-25523)
Drift
Removing mainshaft rear bearing
a: 54 mm (2.13 in) dia.
b: 46 mm (1.81 in) dia.
c: 32 mm (1.26 in) dia.
ST15310000
(J-25640-B)
Drift
Installing mainshaft rear bearing
a: 96 mm (3.78 in) dia.
b: 84 mm (3.31 in) dia.
KV40100621
(J-25273)
Drift
Installing front drive shaft front bearing
Installing front drive shaft rear bearing
a: 76 mm (2.99 in) dia.
b: 69 mm (2.72 in) dia.
ST30032000
(J-26010-01)
Base
Installing front drive shaft front bearing
Installing front drive shaft rear bearing
a: 38 mm (1.50 in) dia.
b: 80 mm (3.15 in) dia.
ST33220000
( — )
Drift
Installing needle bearing
a: 37 mm (1.46 in) dia.
b: 31 mm (1.22 in) dia.
b: 22 mm (0.87 in) dia.
Tool number
(Kent-Moore No.)
Tool name
Description
NT668
ZZA1046D
ZZA0908D
NT086
NT660
ZZA1046D
Page 3114 of 3383
PREPARATIONTF-9
CE F
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M A
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TF
Revision: November 2009 2006 QX56
Commercial Service ToolsEDS003B5
Tool nameDescription
Puller
Removing companion flange
Pin punch
Removing retainer pin
Installing retainer pin
a: 6 mm (0.24 in) dia.
Power tool
Removing transfer case assembly
NT077
NT410
PBIC0190E
Page 3115 of 3383
TF-10
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
Revision: November 20092006 QX56
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartEDS002I1
Use the chart below to help you find the cause of the symptom. The numbers indicate the order of the inspec-
tion. If necessary, repair or replace these parts.
Reference page
TF-11TF-146TF-163TF-163TF-163
SUSPECTED PARTS
(Possible cause)
TRANSFER FLUID (Level low)
TRANSFER FLUID (Wrong)
TRANSFER FLUID (Level too high)
LIQUID GASKET (Damaged)
O-RING (Worn or damaged)
OIL SEAL (Worn or damaged)
SHIFT FORK (Worn or damaged)
GEAR (Worn or damaged)
BEARING (Worn or damaged)
SymptomNoise
1 2 3 3
Transfer fluid leakage 3 1 2 2 2
Hard to shift or will not shift 1 1 2
Page 3116 of 3383

TRANSFER FLUIDTF-11
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Revision: November 2009 2006 QX56
TRANSFER FLUIDPFP:31001
ReplacementEDS003B6
DRAINING
1. Stop the engine.
2. Remove the drain plug and gasket to drain the transfer fluid as
shown.
3. Install the new gasket on the drain plug and install the drain plug in the transfer. Tighten the drain plug to specification.
CAUTION:
Do not reuse the gasket.
FILLING
1. Remove the filler plug and gasket.
2. Fill with new specified fluid until the fluid level reaches the spec-ified limit near the filler plug hole as shown.
CAUTION:
Carefully fill the transfer with fluid. Filling should take
approximately three minutes.
3. Leave the vehicle for three minutes and then check the fluid level again as shown.
4. Install the new gasket on the filler plug and install the filler plug in the transfer. Tighten the filler plug to specification.
CAUTION:
Do not reuse the gasket.
InspectionEDS003B7
FLUID LEAKAGE AND FLUID LEVEL
1. Check for any fluid leaks from the transfer assembly or around it and correct as necessary.
2. Remove the filler plug to check the fluid level at the filler plug
hole as shown.
CAUTION:
Do not start the engine while checking the fluid level.
3. Install the new gasket on the filler plug and install the filler plug in the transfer. Tighten the filler plug to specification.
CAUTION:
Do not reuse the gasket.Drain plug : Refer to
TF-146, "
COMPONENTS" .
SDIA3208E
Fluid capacity and grade : Refer to MA-11, "Fluids
and Lubricants" .
Filler plug : Refer to TF-146, "
COMPONENTS" .
SDIA3209E
Filler plug : Refer to TF-146, "COMPONENTS" .
SDIA3209E
Page 3117 of 3383
TF-12
ALL-MODE 4WD SYSTEM
Revision: November 20092006 QX56
ALL-MODE 4WD SYSTEMPFP:00000
Cross-section ViewEDS002H8
1. Center case2. Front case 3. Internal gear
4. Planetary carrier assembly 5. Sun gear assembly 6. Main shaft
7. L-H sleeve 8. L-H fork 9. Shift rod
10. 2-4 sleeve 11. 2-4 fork 12. Drive chain
13. Front drive shaft 14. Control valve assembly 15. Transfer motor
16. Rear case 17. Clutch piston 18. Press flange
19. Multiple disc clutch 20. Clutch hub assembly 21. Clutch drum assembly
WDIA0202E
Page 3118 of 3383
ALL-MODE 4WD SYSTEMTF-13
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Revision: November 2009 2006 QX56
Power TransferEDS002H9
POWER TRANSFER DIAGRAM
1. Center case2. Chain3. Multiple disc clutch
4. Rear case 5. Mainshaft6. Clutch hub assembly
7. Sub oil pump 8. Transfer motor9. Control valve
10. Front drive shaft 11. Drain plug12. 2-4 sleeve
13. Sun gear assembly 14. L-H sleeve15. Planetary carrier assembly
16. Internal gear 17. Front case
LDIA0053E
Page 3119 of 3383
TF-14
ALL-MODE 4WD SYSTEM
Revision: November 20092006 QX56
POWER TRANSFER FLOW
SDIA3327E
Page 3120 of 3383
ALL-MODE 4WD SYSTEMTF-15
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Revision: November 2009 2006 QX56
System DescriptionEDS002HA
CONTROL SYSTEM
WDIA0162E