2008 INFINITI QX56 brake

TM-222
< DISASSEMBLY AND ASSEMBLY >
OVERHAUL
1. Needle bearing2. Bearing race3. High and low reverse clutch assembly
4. Needle bearing 5. Direct clutch assembly6. Reverse brake dish plate
7. Reverse brake dish plate 8. Reverse brake driven plate 9. N-spring
10. Reverse brake drive plate 11. Reverse brake retaining plate 12. Snap ring
13. D-ring 14. D-ring15. Reverse brake piston
16. Return spring 17. Spring retainer18. Snap ring
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Revision: March 2010 2008 QX56

DISASSEMBLYTM-235
< DISASSEMBLY AND ASSEMBLY >
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14. Loosen lock nut and remove band servo anchor end pin from transmission case.
15. Remove brake band from transmission case.
CAUTION:
• To prevent brake linings from cracking or peeling, do not
stretch the flexible band unnecessarily. When removing
the brake band, always secure it with a clip as shown.
• Check brake band facing for damage, cracks, wear or
burns.
16. Remove mid carrier assembly and rear carrier assembly as a unit.
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Revision: March 2010 2008 QX56

DISASSEMBLYTM-237
< DISASSEMBLY AND ASSEMBLY >
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22. Remove mid sun gear assembly , rear sun gear assembly and
high and low reverse clutch hub as a unit.
CAUTION:
Remove them with bearing race 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 needle bearing from drum support.
25. Remove direct clutch assembly from reverse brake.
26. Remove snap ring from A/T assembly harness connector.
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Revision: March 2010 2008 QX56

TM-244
< DISASSEMBLY AND ASSEMBLY >
DISASSEMBLY
49. Remove output speed sensor (1) from transmission case.
CAUTION:
• Do not subject it to impact by dropping or hitting it.
• Do not disassemble.
• Do not allow metal filings or any foreign material to get on
the sensor's front edge magnetic area.
• Do not place in an area affected by magnetism.
50. Remove reverse brake snap ring using two flat-bladed screw- drivers.
NOTE:
Press out snap ring from the transmission case oil pan side gap
using a flat-bladed screwdriver, and remove it using a another
screwdriver.
51. Remove reverse brake retaining plate from transmission case. • Check facing for burns, cracks or damage. If necessary,
replace the plate.
52. Remove N-spring from transmission case.
53. Remove reverse brake drive plates, driven plates and dish plate from transmission case.
•Check facing for burns, cracks or damage. If necessary,
replace the plate.
54. Remove snap ring using suitable tool.
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Revision: March 2010 2008 QX56

DISASSEMBLYTM-245
< DISASSEMBLY AND ASSEMBLY >
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55. Remove spring retainer and return spring from transmission case.
56. Remove seal rings from drum support.
57. Remove needle bearing from drum support edge surface.
58. Remove reverse brake piston from transmission case using compressed air. Refer to TM-227, "
Oil Channel".
CAUTION:
Care should be taken not to ab ruptly blow air. It makes the
piston incline, and as a result , it becomes hard to disas-
semble the pistons.
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Revision: March 2010 2008 QX56

TM-246
< DISASSEMBLY AND ASSEMBLY >
DISASSEMBLY
59. Remove D-rings from reverse brake piston.
60. Knock out retaining pin using suitable tool.
61. Remove manual shaft retaining pin using suitable tool.
62. Remove manual plate (with parking rod) from manual shaft.
63. Remove parking rod from manual plate.
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Revision: March 20102008 QX56

ASSEMBLYTM-271
< DISASSEMBLY AND ASSEMBLY >
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10. Install servo assembly in transmission case.
11. Install snap ring to transmission case using suitable tool.
12. Install 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.
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Revision: March 2010 2008 QX56

TM-272
< DISASSEMBLY AND ASSEMBLY >
ASSEMBLY
15. Install seal rings to drum support.CAUTION:
• Do not reuse seal rings.
• Apply petroleum jelly to seal rings.
16. Install spring retainer and return spring in transmission case.
17. Install snap ring in transmission case while compressing return spring using Tool.
CAUTION:
Securely assemble them using a flat-bladed screwdriver so
that snap ring tension is slightly weak.
18. Install reversr brake drive plates driven plates and dish plates in transmission case. CAUTION:
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Tool number : KV31102400 (J-34285 and J-34285-87)
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Revision: March 2010 2008 QX56