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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 466 (Automatic Transmission (Re5R05A)) >> Unit Disassembly And Assembly >> Transmission Assembly >> Disassembly

Transmission Assembly: Disassembly

WARNING: This page is about a different car, the 2019 Nissan NV3500 HD, 2019 Nissan NV2500 HD, and 2019 Nissan NV1500. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Do not disassemble parts behind Drum Support. Refer to Cross-Sectional View .
  1. Drain ATF through drain plug.
  2. Remove torque converter by holding it firmly and turning while pulling straight out.
    G04075765Courtesy of NISSAN NORTH AMERICA, INC.
  3. Remove tightening bolts (SYMBOL ) for converter housing and transmission case.
    G04876019Courtesy of NISSAN NORTH AMERICA, INC.
  4. Remove converter housing from transmission case.
    CAUTION: Be careful not to scratch converter housing.
  5. Remove O-ring from input clutch assembly.
    G04075768Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Do not reuse O-ring.
  6. Remove tightening bolts for oil pump assembly and transmission case.
    G04075769Courtesy of NISSAN NORTH AMERICA, INC.
  7. Attach the sliding hammers to oil pump assembly and extract it evenly from transmission case.
    G08162516Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION:
    • Fully tighten the sliding hammer screws.
    • Make sure that bearing race is installed to the oil pump assembly edge surface.
  8. Remove O-ring from oil pump assembly.
    G04075771Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Do not reuse O-ring.
  9. Remove bearing race from oil pump assembly.
    G04075982Courtesy of NISSAN NORTH AMERICA, INC.
  10. Remove needle bearing from front sun gear.
    G04075773Courtesy of NISSAN NORTH AMERICA, INC.
  11. Remove front sun gear assembly from front carrier assembly.
    G04075774Courtesy of NISSAN NORTH AMERICA, INC.
    NOTE: Remove front sun gear by rotating left/right.
  12. Remove seal rings from input clutch assembly.
    G04075775Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Do not reuse seal rings.
  13. Remove front carrier assembly from rear carrier assembly. (With input clutch assembly and rear internal gear.)
    G04075776Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Be careful to remove it with needle bearing.
  14. Loosen lock nut and remove band servo anchor end pin from transmission case.
    G04075777Courtesy of NISSAN NORTH AMERICA, INC.
  15. Remove brake band from transmission case.
    G04075778Courtesy of NISSAN NORTH AMERICA, INC.
    • 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 in the figure at right. 
      G04075779Courtesy of NISSAN NORTH AMERICA, INC.

      Leave the clip in position after removing the brake band. 

    • Check brake band facing for damage, cracks, wear or burns. 
  16. Remove mid carrier assembly and rear carrier assembly as a unit.
    G04075780Courtesy of NISSAN NORTH AMERICA, INC.
  17. Remove mid carrier assembly from rear carrier assembly.
    G04075781Courtesy of NISSAN NORTH AMERICA, INC.
  18. Remove needle bearing (front side) from mid carrier assembly.
    G04075782Courtesy of NISSAN NORTH AMERICA, INC.
  19. Remove needle bearing (rear side) from mid carrier assembly.
    G04075783Courtesy of NISSAN NORTH AMERICA, INC.
  20. Remove bearing race from rear carrier assembly.
    G04075784Courtesy of NISSAN NORTH AMERICA, INC.
  21. Remove needle bearing from rear carrier assembly.
    G04075785Courtesy of NISSAN NORTH AMERICA, INC.
  22. Remove mid sun gear assembly, rear sun gear assembly and high and low reverse clutch hub as a unit.
    G04075786Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Be careful to remove then with bearing race and needle bearing.
  23. Remove high and low reverse clutch assembly from direct clutch assembly.
    G04075787Courtesy of NISSAN NORTH AMERICA, INC.
    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.
    G04075789Courtesy of NISSAN NORTH AMERICA, INC.
  25. Remove direct clutch assembly from reverse brake.
    G04075788Courtesy of NISSAN NORTH AMERICA, INC.
  26. Remove snap ring (1) from A/T assembly connector (A).
    GNSJPDIA07Z-007Courtesy of NISSAN NORTH AMERICA, INC.
  27. Push A/T assembly connector (A).
    GNSJPDIA08Z-008Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Be careful not to damage connector.
  28. Remove clips (1).
    GNSJSDIA1600Z-600Courtesy of NISSAN NORTH AMERICA, INC.

    SYMBOL

    : Front

    SYMBOL

    : Oil pan mounting bolt
  29. Remove oil pan (2) and oil pan gasket.
  30. Remove magnets (1) from oil pan.
    GNSJPDIA09Z-009Courtesy of NISSAN NORTH AMERICA, INC.
  31. Disconnect output speed sensor connector (A).
    GNSJPDIA0011Z-011Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Be careful not to damage connector.
  32. Disengage terminal clip (SYMBOL ).
  33. Remove bolts (A), (B) and (C) from control valve with TCM.
    G04876050Courtesy of NISSAN NORTH AMERICA, INC.

    SYMBOL

    : Front
  34. Remove the control valve with TCM from transmission case.
    G04075800Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: When removing, be careful with the manual valve notch and manual plate height. Remove it vertically.
  35. Remove plug (1) with bracket (2) from control valve with TCM.
    GNSJSDIA1311Z-311Courtesy of NISSAN NORTH AMERICA, INC.
  36. Remove bracket (1) from plug (2).
    GNSJSDIA1312Z-312Courtesy of NISSAN NORTH AMERICA, INC.
  37. Remove O-ring (1) from plug (2).
    GNSJSDIA1313Z-313Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Do not reuse O-ring.
  38. Remove O-ring (1) from A/T assembly connector (A).
    GNSJPDIA0015Z-015Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Do not reuse O-ring.
  39. Disconnect TCM connectors (A) and (B).
    GNSJPDIA0016Z-016Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Be careful not to damage connectors.
  40. Remove A/T assembly connector (A) from control valve with TCM with a flat-bladed screwdriver (B).
    GNSJPDIA0017Z-017Courtesy of NISSAN NORTH AMERICA, INC.
  41. Disconnect TCM connector (A) and transmission range switch connector (B).
    GNSJPDIA0018Z-018Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Be careful not to damage connectors.
  42. Remove tightening bolts for rear extension assembly and transmission case.
    GNSJSDIB0866Z-866Courtesy of NISSAN NORTH AMERICA, INC.

    1

    : Bracket

    A

    : Bolt

    B

    : Self-sealing bolt
    CAUTION: Do not reuse self-sealing bolt.
  43. Tap rear extension assembly with soft hammer.
    G04075808Courtesy of NISSAN NORTH AMERICA, INC.
  44. Remove rear extension assembly (with needle bearing) from transmission case.
    G04075809Courtesy of NISSAN NORTH AMERICA, INC.
  45. Remove bearing race from output shaft.
    G04075692Courtesy of NISSAN NORTH AMERICA, INC.
  46. Remove output shaft from transmission case by rotating left/right.
    G04075815Courtesy of NISSAN NORTH AMERICA, INC.
  47. Remove parking gear (1) from output shaft (2).
    GNSJPDIA0029Z-029Courtesy of NISSAN NORTH AMERICA, INC.
  48. Remove seal rings (1) from output shaft.
    GNSJPDIA0030Z-030Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Do not reuse seal rings.
  49. Remove needle bearing from transmission case.
    G04075818Courtesy of NISSAN NORTH AMERICA, INC.
  50. Remove output speed sensor (1) from transmission case.
    GNSJSDIA1321Z-321Courtesy of NISSAN NORTH AMERICA, INC.

    SYMBOL

    : Bolt
    CAUTION:
    • Never subject it to impact by dropping or hitting it.
    • Never disassemble.
    • Never allow metal filings, etc. to get on the sensor's front edge magnetic area.
    • Never place in an area affected by magnetism.
  51. Remove reverse brake snap ring (fixing plate) with two flat-bladed screwdrivers.
    G04075820Courtesy of NISSAN NORTH AMERICA, INC.
    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.
  52. Remove reverse brake retaining plate from transmission case.
    • Check facing for burns, cracks or damage. If necessary, replace the plate. 
  53. Remove N-spring from transmission case.
    G04081861Courtesy of NISSAN NORTH AMERICA, INC.
  54. Remove reverse brake drive plates, driven plates, dish plates and retaining plate transmission case.
    G04075822Courtesy of NISSAN NORTH AMERICA, INC.
    • Check facing for burns, cracks or damage. If necessary, replace the plate. 
  55. Remove snap ring (fixing spring retainer) using a flat-bladed screwdriver.
    G04075823Courtesy of NISSAN NORTH AMERICA, INC.
  56. Remove spring retainer and return spring from transmission case.
    G04075824Courtesy of NISSAN NORTH AMERICA, INC.
  57. Remove seal rings from drum support.
    G04075925Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Do not reuse seal rings.
  58. Remove needle bearing from drum support edge surface.
    G04075924Courtesy of NISSAN NORTH AMERICA, INC.
  59. Remove reverse brake piston from transmission case with compressed air. Refer to Oil Channel .
    G04075827Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Care should be taken not to abruptly blow air. It makes pistons incline, as the result, it becomes hard to disassemble the pistons.
  60. Remove D-rings from reverse brake piston.
    G04121002Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Do not reuse D-rings.
  61. Use a pin punch [4 mm (0.16 in) dia. commercial service tool] to knock out retaining pin.
    G04075829Courtesy of NISSAN NORTH AMERICA, INC.
  62. Remove retaining pin with pair of nippers.
    G04075830Courtesy of NISSAN NORTH AMERICA, INC.
  63. Remove manual plate (with parking rod) from manual shaft.
    G04075831Courtesy of NISSAN NORTH AMERICA, INC.
  64. Remove parking rod from manual plate.
    G04075832Courtesy of NISSAN NORTH AMERICA, INC.
  65. Remove manual shaft from transmission case.
    G04075833Courtesy of NISSAN NORTH AMERICA, INC.
  66. Remove manual shaft oil seals with a flat-bladed screwdriver.
    G04075834Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION:
    • Do not reuse oil seals.
    • Be careful not to scratch transmission case.
  67. Remove detent spring and spacer from transmission case.
    G04075835Courtesy of NISSAN NORTH AMERICA, INC.
  68. Remove snap ring from transmission case with pair of snap ring pliers.
    G04075921Courtesy of NISSAN NORTH AMERICA, INC.
  69. Remove servo assembly (with return spring) from transmission case.
    G04075837Courtesy of NISSAN NORTH AMERICA, INC.
  70. Remove return spring from servo assembly.
    G04075838Courtesy of NISSAN NORTH AMERICA, INC.
  71. Remove O-rings from servo assembly.
    G04075839Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Do not reuse O-rings.
  72. Remove needle bearing (1) from rear extension.
    G04120872Courtesy of NISSAN NORTH AMERICA, INC.
  73. Remove parking actuator support from rear extension.
    G04075696Courtesy of NISSAN NORTH AMERICA, INC.
  74. Remove parking pawl (with return spring) and pawl shaft from rear extension.
    G04075697Courtesy of NISSAN NORTH AMERICA, INC.
  75. Remove return spring (1) from parking pawl (2).
    G04075844Courtesy of NISSAN NORTH AMERICA, INC.
  76. Remove rear oil seal from rear extension with a flat-bladed screwdriver.
    G04075699Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Be careful not to scratch rear extension.
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