LEMON Manuals: Even more car manuals for everyone
Home >> Nissan-Datsun >> 2012 >> NV3500 HD SL >> Repair and Diagnosis >> Transmission >> Automatic Transmission >> Unit Disassembly And Assembly >> Transmission Assembly >> Disassembly

Transmission Assembly: Disassembly

CAUTION: Do not disassemble parts behind Drum Support. Refer to "TRANSMISSION: CROSS-SECTIONAL VIEW ".
  1. Drain ATF through drain plug.
  2. Remove torque converter by holding it firmly and turning while pulling straight out.
    Fig 1: Removing Torque Converter
    G07013603Courtesy of NISSAN NORTH AMERICA, INC.
  3. Remove tightening bolts (<=) for converter housing and transmission case.
  4. Remove converter housing from transmission case.
    CAUTION: Be careful not to scratch converter housing.
    Fig 2: Locating Converter Housing Bolts
    G04876019Courtesy of NISSAN NORTH AMERICA, INC.
  5. Remove O-ring from input clutch assembly.
    CAUTION: Do not reuse O-ring.
    Fig 3: Identifying O-Ring On Input Clutch Assembly
    G07013605Courtesy of NISSAN NORTH AMERICA, INC.
  6. Remove tightening bolts for oil pump assembly and transmission case.
    Fig 4: Locating Oil Pump Assembly Bolts
    G04876021Courtesy of NISSAN NORTH AMERICA, INC.
  7. Attach the sliding hammers to oil pump assembly and extract it evenly from transmission case.
    CAUTION:
    • Fully tighten the sliding hammer screws.
    • Make sure that bearing race is installed to the oil pump assembly edge surface.
    Fig 5: Removing Oil Pump Assembly From Transmission Case
    G08162516Courtesy of NISSAN NORTH AMERICA, INC.
  8. Remove O-ring from oil pump assembly.
    CAUTION: Do not reuse O-ring.
    Fig 6: Removing O-Ring From Oil Pump Assembly
    G04876023Courtesy of NISSAN NORTH AMERICA, INC.
  9. Remove bearing race from oil pump assembly.
    Fig 7: Removing Bearing Race From Oil Pump Assembly
    G04876024Courtesy of NISSAN NORTH AMERICA, INC.
  10. Remove needle bearing from front sun gear.
    Fig 8: Removing Needle Bearing From Front Sun Gear
    G04876025Courtesy of NISSAN NORTH AMERICA, INC.
  11. Remove front sun gear assembly from front carrier assembly.
    NOTE: Remove front sun gear by rotating left/right.
    Fig 9: Removing Front Sun Gear Assembly From Front Carrier Assembly
    G04876026Courtesy of NISSAN NORTH AMERICA, INC.
  12. Remove seal rings from input clutch assembly.
    CAUTION: Do not reuse seal rings.
    Fig 10: Removing Seal Rings From Input Clutch Assembly
    G04876027Courtesy of NISSAN NORTH AMERICA, INC.
  13. Remove front carrier assembly from rear carrier assembly. (With input clutch assembly and rear internal gear.)
    CAUTION: Be careful to remove it with needle bearing.
    Fig 11: Removing Front Carrier Assembly From Rear Carrier Assembly
    G04876028Courtesy of NISSAN NORTH AMERICA, INC.
  14. Loosen lock nut and remove band servo anchor end pin from transmission case.
    Fig 12: Identifying Lock Nut And Band Servo Anchor End Pin
    G04876029Courtesy of NISSAN NORTH AMERICA, INC.
  15. Remove brake band from transmission case.
    Fig 13: Identifying Brake Band On Transmission Case
    G04876030Courtesy 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. 

      Leave the clip in position after removing the brake band. 

    • Check brake band facing for damage, cracks, wear or burns. 
      Fig 14: Identifying Brake Band And Clip
      G04876031Courtesy of NISSAN NORTH AMERICA, INC.
  16. Remove mid carrier assembly and rear carrier assembly as a unit.
    Fig 15: Identifying Mid Carrier Assembly And Rear Carrier Assembly
    G07016117Courtesy of NISSAN NORTH AMERICA, INC.
  17. Remove mid carrier assembly from rear carrier assembly.
    Fig 16: Removing Mid Carrier Assembly From Rear Carrier Assembly
    G07016118Courtesy of NISSAN NORTH AMERICA, INC.
  18. Remove needle bearing (front side) from mid carrier assembly.
    Fig 17: Removing Needle Bearing (Front Side) From Mid Carrier Assembly
    G07016119Courtesy of NISSAN NORTH AMERICA, INC.
  19. Remove needle bearing (rear side) from mid carrier assembly.
    Fig 18: Removing Needle Bearing (Rear Side) From Mid Carrier Assembly
    G07016120Courtesy of NISSAN NORTH AMERICA, INC.
  20. Remove bearing race from rear carrier assembly.
    Fig 19: Removing Bearing Race From Rear Carrier Assembly
    G07016121Courtesy of NISSAN NORTH AMERICA, INC.
  21. Remove needle bearing from rear carrier assembly.
    Fig 20: Removing Needle Bearing From Rear Carrier Assembly
    G07013665Courtesy 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.
    CAUTION: Be careful to remove then with bearing race and needle bearing.
    Fig 21: Identifying Mid Sun Gear Assembly And Rear Sun Gear Assembly
    G07016123Courtesy of NISSAN NORTH AMERICA, INC.
  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.
    Fig 22: Identifying High And Low Reverse Clutch Assembly
    G07016124Courtesy of NISSAN NORTH AMERICA, INC.
  24. Remove needle bearing from drum support.
    Fig 23: Identifying Needle Bearing And Drum Support
    G07016126Courtesy of NISSAN NORTH AMERICA, INC.
  25. Remove direct clutch assembly from reverse brake.
    Fig 24: Identifying Direct Clutch Assembly
    G07016125Courtesy of NISSAN NORTH AMERICA, INC.
  26. Remove snap ring (1) from A/T assembly connector (A).
    Fig 25: Remove Snap Ring From A/T Assembly Connector
    G07016127Courtesy of NISSAN NORTH AMERICA, INC.
  27. Push A/T assembly connector (A).
    CAUTION: Be careful not to damage connector.
    Fig 26: Pushing Terminal Cord Assembly Connector Downward
    G07016128Courtesy of NISSAN NORTH AMERICA, INC.
  28. Remove clips (1).
    Fig 27: Identifying Oil Pan Mounting Bolts And Clips
    G08436217Courtesy of NISSAN NORTH AMERICA, INC.
  29. Remove oil pan (2) and oil pan gasket.
  30. Remove magnets (1) from oil pan.
    Fig 28: Identifying Magnets In Oil Pan
    G07013517Courtesy of NISSAN NORTH AMERICA, INC.
  31. Disconnect output speed sensor connector (A).
    CAUTION: Be careful not to damage connector.
  32. Disengage terminal clip (<=).
    Fig 29: Identifying Output Speed Sensor Connector And Terminal Clip
    G05218609Courtesy of NISSAN NORTH AMERICA, INC.
  33. Remove bolts (A), (B) and (C) from control valve with TCM.
    Fig 30: Identifying Bolts And Control Valve With TCM
    G08436220Courtesy of NISSAN NORTH AMERICA, INC.
  34. Remove the control valve with TCM from transmission case.
    CAUTION: When removing, be careful with the manual valve notch and manual plate height. Remove it vertically.
    Fig 31: Removing Control Valve With TCM From Transmission Case
    G04876051Courtesy of NISSAN NORTH AMERICA, INC.
  35. Remove plug (1) with bracket (2) from control valve with TCM.
    Fig 32: Locating Plug And Bracket Bolts
    G06577920Courtesy of NISSAN NORTH AMERICA, INC.
  36. Remove bracket (1) from plug (2).
    Fig 33: Removing Bracket From Plug
    G06577906Courtesy of NISSAN NORTH AMERICA, INC.
  37. Remove O-ring (1) from plug (2).
    CAUTION: Do not reuse O-ring.
    Fig 34: Identifying O-Ring And Plug
    G06591732Courtesy of NISSAN NORTH AMERICA, INC.
  38. Remove O-ring (1) from A/T assembly connector (A).
    CAUTION: Do not reuse O-ring.
    Fig 35: Identifying O-Ring And Terminal Cord Assembly Connector
    G08436141Courtesy of NISSAN NORTH AMERICA, INC.
  39. Disconnect TCM connectors (A) and (B).
    CAUTION: Be careful not to damage connectors.
    Fig 36: Identifying Terminal Cord Assembly Connectors (A) And (B)
    G05218615Courtesy of NISSAN NORTH AMERICA, INC.
  40. Remove A/T assembly connector (A) from control valve with TCM with a flat-bladed screwdriver (B).
    Fig 37: Removing Terminal Cord Assembly Connector From Control Valve With TCM Using Suitable Tool
    G07013523Courtesy of NISSAN NORTH AMERICA, INC.
  41. Disconnect TCM connector (A) and transmission range switch connector (B).
    CAUTION: Be careful not to damage connectors.
    Fig 38: Identifying TCM Connector
    G05218617Courtesy of NISSAN NORTH AMERICA, INC.
  42. Remove tightening bolts for rear extension assembly and transmission case.
    Fig 39: Identifying Bolts Of Rear Extension Assembly And Transmission Case
    G08436229Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Do not reuse self-sealing bolt.
  43. Tap rear extension assembly with soft hammer.
    Fig 40: Tapping Rear Extension Assembly With Soft Hammer
    G07016137Courtesy of NISSAN NORTH AMERICA, INC.
  44. Remove rear extension assembly (with needle bearing) from transmission case.
    Fig 41: Removing Rear Extension Assembly (With Needle Bearing) From Transmission Case
    G07016138Courtesy of NISSAN NORTH AMERICA, INC.
  45. Remove bearing race from output shaft.
    Fig 42: Removing Bearing Race From Output Shaft
    G07016139Courtesy of NISSAN NORTH AMERICA, INC.
  46. Remove output shaft from transmission case by rotating left/right.
    Fig 43: Removing Output Shaft From Transmission Case By Rotating Left/Right
    G07016140Courtesy of NISSAN NORTH AMERICA, INC.
  47. Remove parking gear (1) from output shaft (2).
    Fig 44: Removing Parking Gear From Output Shaft
    G07013535Courtesy of NISSAN NORTH AMERICA, INC.
  48. Remove seal rings (1) from output shaft.
    CAUTION: Do not reuse seal rings.
    Fig 45: Identifying Seal Rings On Output Shaft
    G07023069Courtesy of NISSAN NORTH AMERICA, INC.
  49. Remove needle bearing from transmission case.
    Fig 46: Identifying Needle Bearing In Transmission Case
    G07016151Courtesy of NISSAN NORTH AMERICA, INC.
  50. Remove output speed sensor (1) from transmission case.
    Fig 47: Locating Output Speed Sensor Bolt
    G08436237Courtesy of NISSAN NORTH AMERICA, INC.
    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.
    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. 
      Fig 48: Removing Reverse Brake Snap Ring (Fixing Plate) With Two Flat-Bladed Screwdrivers
      G07016153Courtesy of NISSAN NORTH AMERICA, INC.
  53. Remove N-spring from transmission case.
    Fig 49: Identifying N-Spring And Transmission Case
    G07016154Courtesy of NISSAN NORTH AMERICA, INC.
  54. Remove reverse brake drive plates, driven plates, dish plates and retaining plate transmission case.
    • Check facing for burns, cracks or damage. If necessary, replace the plate. 
      Fig 50: Removing Reverse Brake Drive Plates, Driven Plates, Dish Plates And Retaining Plate Transmission Case
      G07016155Courtesy of NISSAN NORTH AMERICA, INC.
  55. Remove snap ring (fixing spring retainer) using a flat-bladed screwdriver.
    Fig 51: Identifying Snap Ring (Fixing Spring Retainer)
    G07016156Courtesy of NISSAN NORTH AMERICA, INC.
  56. Remove spring retainer and return spring from transmission case.
    Fig 52: Identifying Spring Retainer
    G07016157Courtesy of NISSAN NORTH AMERICA, INC.
  57. Remove seal rings from drum support.
    CAUTION: Do not reuse seal rings.
    Fig 53: Identifying Seal Rings On Drum Support
    G07016158Courtesy of NISSAN NORTH AMERICA, INC.
  58. Remove needle bearing from drum support edge surface.
    Fig 54: Identifying Needle Bearing On Drum Support Edge Surface
    G07016159Courtesy of NISSAN NORTH AMERICA, INC.
  59. Remove reverse brake piston from transmission case with compressed air. Refer to "OIL CHANNEL ".
    CAUTION: Care should be taken not to abruptly blow air. It makes pistons incline, as the result, it becomes hard to disassemble the pistons.
    Fig 55: Removing Reverse Brake Piston From Transmission Case With Compressed Air
    G07147099Courtesy of NISSAN NORTH AMERICA, INC.
  60. Remove D-rings from reverse brake piston.
    CAUTION: Do not reuse D-rings.
    Fig 56: Identifying D-Rings And Reverse Brake Piston
    G07013608Courtesy of NISSAN NORTH AMERICA, INC.
  61. Use a pin punch [4 mm (0.16 in) dia. commercial service tool] to knock out retaining pin.
    Fig 57: Identifying Retaining Pin, Manual Plate And Manual Shaft
    G07147101Courtesy of NISSAN NORTH AMERICA, INC.
  62. Remove retaining pin with pair of nippers.
    Fig 58: Removing Retaining Pin With Pair Of Nippers
    G07013609Courtesy of NISSAN NORTH AMERICA, INC.
  63. Remove manual plate (with parking rod) from manual shaft.
    Fig 59: Removing Manual Plate (With Parking Rod) From Manual Shaft
    G07013612Courtesy of NISSAN NORTH AMERICA, INC.
  64. Remove parking rod from manual plate.
    Fig 60: Removing Parking Rod From Manual Plate
    G04876153Courtesy of NISSAN NORTH AMERICA, INC.
  65. Remove manual shaft from transmission case.
    Fig 61: Removing Manual Shaft From Transmission Case
    G07013613Courtesy of NISSAN NORTH AMERICA, INC.
  66. Remove manual shaft oil seals with a flat-bladed screwdriver.
    CAUTION:
    • Do not reuse oil seals.
    • Be careful not to scratch transmission case.
    Fig 62: Removing Manual Shaft Oil Seals With Flat-Bladed Screwdriver
    G07013614Courtesy of NISSAN NORTH AMERICA, INC.
  67. Remove detent spring and spacer from transmission case.
    Fig 63: Locating Detent Spring Bolts And Spacer
    G04876082Courtesy of NISSAN NORTH AMERICA, INC.
  68. Remove snap ring from transmission case with pair of snap ring pliers.
    Fig 64: Removing Snap Ring From Transmission Case With Pair Of Snap Ring Pliers
    G04876083Courtesy of NISSAN NORTH AMERICA, INC.
  69. Remove servo assembly (with return spring) from transmission case.
    Fig 65: Removing Servo Assembly (With Return Spring) From Transmission Case
    G04876084Courtesy of NISSAN NORTH AMERICA, INC.
  70. Remove return spring from servo assembly.
    Fig 66: Removing Return Spring From Servo Assembly
    G04876085Courtesy of NISSAN NORTH AMERICA, INC.
  71. Remove O-rings from servo assembly.
    CAUTION: Do not reuse O-rings.
    Fig 67: Removing O-Rings From Servo Assembly
    G07147111Courtesy of NISSAN NORTH AMERICA, INC.
  72. Remove needle bearing (1) from rear extension.
    Fig 68: Identifying Needle Bearing In Rear Extension
    G07013537Courtesy of NISSAN NORTH AMERICA, INC.
  73. Remove parking actuator support from rear extension.
    Fig 69: Removing Parking Actuator Support From Rear Extension
    G07013617Courtesy of NISSAN NORTH AMERICA, INC.
  74. Remove parking pawl (with return spring) and pawl shaft from rear extension.
    Fig 70: Removing Parking Pawl (With Return Spring) And Pawl Shaft From Rear Extension
    G07013618Courtesy of NISSAN NORTH AMERICA, INC.
  75. Remove return spring (1) from parking pawl (2).
    Fig 71: Identifying Return Spring And Parking Pawl
    G07013540Courtesy of NISSAN NORTH AMERICA, INC.
  76. Remove rear oil seal from rear extension with a flat-bladed screwdriver.
    CAUTION: Be careful not to scratch rear extension.
    Fig 72: Removing Rear Oil Seal From Rear Extension With Flat-Bladed Screwdriver
    G04875966Courtesy of NISSAN NORTH AMERICA, INC.