service INFINITI QX56 2007 Factory Service Manual

AT-270
< SERVICE INFORMATION >
REPAIR FOR COMPONENT PARTS
b. Remove 1st one-way clutch from rear sun gear.
5. Remove seal rings from mid sun gear.
INSPECTION
High and Low Reverse Clutch Hub Snap Ring, Rear Sun Gear Snap Ring
• Check for deformation, fatigue or damage.
CAUTION:
If necessary, replace the snap ring.
1st One-way Clutch
• Check frictional surface for wear or damage.
CAUTION:
If necessary, replace the 1st one-way clutch.
Mid Sun Gear
• Check for deformation, fatigue or damage.
CAUTION:
If necessary, replace the mid sun gear.
Rear Sun Gear
• Check for deformation, fatigue or damage.
CAUTION:
If necessary, replace the rear sun gear.
High and Low Reverse Clutch Hub
• Check for deformation, fatigue or damage.
CAUTION:
If necessary, replace the high and low reverse clutch hub.
ASSEMBLY
SCIA4633E
SCIA2861E

REPAIR FOR COMPONENT PARTS
AT-271
< SERVICE INFORMATION >
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1. Install new seal rings to mid sun gear.
CAUTION:
• Do not reuse seal rings.
• Apply petroleum jelly to seal rings.
2. Install 1st one-way clutch to rear sun gear.
CAUTION:
Apply petroleum jelly to 1st one-way clutch.
3. Install snap ring to rear sun gear using suitable tool.
4. Install rear sun gear assembly to mid sun gear assembly.
5. Install needle bearing to high and low reverse clutch hub.
CAUTION:
• Take care with the direction of needle bearing. Refer to
AT-237, "
Location of Adjusting Shims, Needle Bearings,
Thrust Washers and Snap Rings".
• Apply petroleum jelly to needle bearing.
SCIA2861E
SCIA4633E
SCIA2859E
SCIA2858E
SCIA2857E

AT-272
< SERVICE INFORMATION >
REPAIR FOR COMPONENT PARTS
6. Install high and low reverse clutch hub to mid sun gear assem-
bly.
7. Install snap ring to mid sun gear assembly using suitable tool.
CAUTION:
Do not expand snap ring excessively.
8. Check operation of 1st one-way clutch.
a. Hold mid sun gear and turn rear sun gear.
b. Check 1st one-way clutch for correct locking and unlocking
directions.
CAUTION:
If not as shown, check installation direction of 1st one-way
clutch.
9. Install needle bearing and bearing races to high and low reverse
clutch hub.
CAUTION:
• Apply petroleum jelly to needle bearing and bearing
races.
• Take care with order of bearing races.
High and Low Reverse ClutchINFOID:0000000003532491
COMPONENTS
SCIA2856E
SCIA2855E
SCIA3132E
SCIA5238E

REPAIR FOR COMPONENT PARTS
AT-273
< SERVICE INFORMATION >
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DISASSEMBLY
1. Remove bearing race from high and low reverse clutch drum.
2. Remove snap ring from high and low reverse clutch drum using
suitable tool.
3. Remove drive plates, driven plates and retaining plate from high
and low reverse clutch drum.
INSPECTION
•Check the following, and replace high and low reverse clutch assembly if necessary.
High and Low Reverse Clutch Snap Ring
• Check for deformation, fatigue or damage.
High and Low Reverse Clutch Drive Plates
• Check facing for burns, cracks or damage.
High and Low Reverse Clutch Retaining Plate and Driven Plates
• Check facing for burns, cracks or damage.
ASSEMBLY
1. High and low reverse clutch drum 2. Driven plate 3. Retaining plate
4. Snap ring 5. Drive plate 6. Bearing race
SCIA5239E
SCIA5240E
SCIA2868E

AT-274
< SERVICE INFORMATION >
REPAIR FOR COMPONENT PARTS
1. Install drive plates, driven plates and retaining plate in high and
low reverse clutch drum.
CAUTION:
Take care with the order of plates.
2. Install snap ring in high and low reverse clutch drum using suit-
able tool.
3. Install bearing race to high and low reverse clutch drum.
CAUTION:
Apply petroleum jelly to bearing race.
Direct ClutchINFOID:0000000003532492
COMPONENTS
SCIA5241E
SCIA2868E
SCIA5240E

REPAIR FOR COMPONENT PARTS
AT-275
< SERVICE INFORMATION >
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DISASSEMBLY
1. Remove snap rings from direct clutch drum using suitable tool.
2. Remove drive plates, driven plates and retaining plate from
direct clutch drum.
INSPECTION
•Check the following, and replace direct clutch assembly if necessary.
Direct Clutch Snap Rings
• Check for deformation, fatigue or damage.
Direct Clutch Drive Plates
• Check facing for burns, cracks or damage.
Direct Clutch Retaining Plate and Driven Plates
• Check facing for burns, cracks or damage.
ASSEMBLY
1. Direct clutch drum 2. Driven plate 3. Retaining plate
4. Snap ring 5. Drive plate
SCIA5242E
SCIA2868E

AT-276
< SERVICE INFORMATION >
REPAIR FOR COMPONENT PARTS
1. Install drive plates, driven plates and retaining plate in direct
clutch drum.
CAUTION:
Take care with the order of plates.
2. Install snap rings in direct clutch drum using suitable tool.
SCIA5243E
SCIA2868E

ASSEMBLY
AT-277
< SERVICE INFORMATION >
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ASSEMBLY
Assembly (1)INFOID:0000000003532493
1. Drive new manual shaft oil seals into the transmission case until
it is flush using suitable tool.
CAUTION:
• Apply ATF to manual shaft oil seals.
• Do not reuse manual shaft oil seals.
2. Install detent spring and spacer in transmission case. Tighten
bolt to the specified torque. Refer to AT-228, "
Component".
3. Install manual shaft to transmission case.
4. Install parking rod to manual plate.
SCIA5256E
SCIA5248E
SCIA5716E
SCIA5220E

AT-278
< SERVICE INFORMATION >
ASSEMBLY
5. Install manual plate (with parking rod) to manual shaft.
6. Install new retaining pin into the manual plate and manual shaft.
a. Fit pinhole of the manual plate to pinhole of the manual shaft
using suitable tool.
b. Tap the new retaining pin into the manual plate using suitable
tool.
CAUTION:
• Drive retaining pin to 2mm (0.8 in) over the manual plate.
• Do not reuse retaining pin.
7. Install new retaining pin into the transmission case and manual
shaft.
a. Fit pinhole of the transmission case to pinhole of the manual
shaft using suitable tool.
b. Tap the new retaining pin into the transmission case, using suit-
able tool.
CAUTION:
• Drive retaining pin to 5 mm (0.20 in) over the transmission
case.
• Do not reuse retaining pin.
8. Install new O-rings to servo assembly.
CAUTION:
• Do not reuse O-rings.
• Apply petroleum jelly to O-rings.
9. Install return spring to servo assembly.
SCIA5219E
SCIA5297E
SCIA2427E
SCIA5719E
SCIA5717E

ASSEMBLY
AT-279
< SERVICE INFORMATION >
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10. Install servo assembly in transmission case.
11. Install snap ring to transmission case using suitable tool.
12. Install new D-rings in reverse brake piston.
CAUTION:
• Do not reuse D-rings.
• Apply ATF to D-rings.
13. Install reverse brake piston in transmission case.
14. Install needle bearing to drum support edge surface.
CAUTION:
Apply petroleum jelly to needle bearing.
SCIA2334E
SCIA2333E
SCIA5340E
SCIA2325E
SCIA2796E