2004 INFINITI QX56 Revers

OVERHAUL
AT-263
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Revision: August 20072004 QX56
1. Bearing race 2. High and low reverse clutch assem-
bly3. Needle bearing
4. Direct clutch assembly 5. Needle bearing 6. Reverse brake dish plate
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AT-264
OVERHAUL
Revision: August 20072004 QX56
7. Reverse brake driven plate 8. N-sprig 9. Snap ring
10. Reverse brake retaining plate 11. Reverse brake drive plate 12. Snap ring
13. Spring retainer 14. Return spring 15. Reverse brake piston
16. D-ring 17. D-ring

AT-278
DISASSEMBLY
Revision: August 20072004 QX56
22. Remove mid sun gear assembly, rear sun gear assembly and
high and low reverse clutch hub as a unit.
CAUTION:
Be careful to remove then with bearing races and needle
bearing.
23. Remove high and low reverse clutch assembly from direct clutch
assembly.
CAUTION:
Make sure that needle bearing is installed to the high and
low reverse clutch assembly edge surface.
24. Remove direct clutch assembly from reverse brake.
25. Remove needle bearing from drum support edge surface.
26. Remove snap ring from A/T assembly harness connector.
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AT-284
DISASSEMBLY
Revision: August 20072004 QX56
43. Remove parking gear from output shaft.
44. Remove seal rings from output shaft.
45. Remove needle bearing from transmission case.
46. Remove revolution sensor from transmission case.
CAUTION:

Do not subject it to impact by dropping or hitting it.

Be careful not to damage harness with the edge of case.

Do not allow metal filings, etc., to get on the sensor's
front edge magnetic area.

Do not place in an area affected by magnetism.
47. Remove reverse brake snap ring (fixing plate) using 2 flat-
bladed screwdrivers.
NOTE:
Press out snap ring from the transmission case oil pan side gap
using a flat-bladed screwdriver, and remove it using another
screwdriver.
48. Remove reverse brake retaining plate from transmission case.
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DISASSEMBLY
AT-285
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Revision: August 20072004 QX56
49. Remove N-spring from transmission case.
50. Remove reverse brake drive plates, driven plates and dish plate
from transmission case.
51. Set SST on spring retainer and remove snap ring (fixing spring
retainer) from transmission case while compressing return
spring.
52. Remove spring retainer and return spring from transmission
case.
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AT-286
DISASSEMBLY
Revision: August 20072004 QX56
53. Remove seal rings from drum support.
54. Remove needle bearing from drum support edge surface.
55. Remove reverse brake piston from transmission case with com-
pressed air. Refer to AT-269, "
Oil Channel" .
CAUTION:
Care should be taken not to abruptly blow air. It makes pis-
tons incline, as the result, it becomes hard to disassemble
the pistons.
56. Remove D-rings from reverse brake piston.
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AT-300
REPAIR FOR COMPONENT PARTS
Revision: August 20072004 QX56
3. Compress snap ring using 2 flat-bladed screwdrivers.
4. Install front carrier assembly and input clutch assembly to rear
internal gear.
Mid Sun Gear, Rear Sun Gear, High and Low Reverse Clutch HubUCS002JN
COMPONENTS
DISASSEMBLY
1. Remove needle bearing and bearing races from high and low
reverse clutch hub.
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1. Needle bearing 2. Bearing race 3. Snap ring
4. High and low reverse clutch hub 5. Needle bearing 6. Snap ring
7. 1st one-way clutch 8. Rear sun gear 9. Seal ring
10. Mid sun gear
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REPAIR FOR COMPONENT PARTS
AT-301
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Revision: August 20072004 QX56
2. Using a snap ring pliers, remove snap ring from mid sun gear
assembly.
CAUTION:
Do not expand snap ring excessively.
3. Remove high and low reverse clutch hub from mid sun gear
assembly.
a. Remove needle bearing from high and low reverse clutch hub.
4. Remove rear sun gear assembly from mid sun gear assembly.
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