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Home >> Lexus >> 2006 >> IS 250 RWD, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Automatic Transmission (A960E)) >> Automatic Transmission Unit >> Disassembly

Automatic Transmission Unit: Disassembly

WARNING: This page is about a different variant/trim than selected.
CAUTION: When working with FIPG material, perform the following:
  • Using a razor blade and gasket scraper, remove all the old FIPG material from the gasket surfaces.
  • Thoroughly clean all components to remove any loose material.
  • Clean both sealing surfaces with a non-residue solvent.
  • Apply FIPG in a continuous line (width approximately 1 mm (0.04 in.)) along the sealing surface.
  • Parts must be assembled within 10 minutes of application. Otherwise, the FIPG material must be removed and reapplied.
  1. REMOVE TRANSMISSION CASE COVER 
    1. Remove the 2 bolts and the transmission case cover.
    Fig 1: Locating Transaxle Case Cover Bolts
    G04020165Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. REMOVE TRANSMISSION CONTROL SHAFT LEVER RH 
    1. Remove the nut, spring washer and the transmission control shaft lever RH.
    Fig 2: Identifying Nut, Spring Washer And Transmission Control Shaft Lever RH
    G04045992Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. REMOVE PARK/NEUTRAL POSITION SWITCH ASSEMBLY 
    1. Using a screwdriver, unstake the lock washer.
    2. Remove the nut and lock washer.
    3. Remove the bolt and park/neutral position switch.
    Fig 3: Identifying Bolt And Park/Neutral Position Switch
    G04045993Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. REMOVE TRANSMISSION OIL COOLER 
    1. Remove the 3 bolts and transmission oil cooler.
      Fig 4: Identifying Bolts And Transmission Oil Cooler
      G04045994Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the 2 O-rings from the transmission oil cooler.
    Fig 5: Identifying O-Rings For Transmission Oil Cooler
    G04045995Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. REMOVE TRANSMISSION REVOLUTION SENSOR 
    1. Remove the 2 bolts and the 2 transmission revolution sensors.
    2. Remove the O-ring from each sensor.
    Fig 6: Identifying Bolts And 2 Transmission Revolution Sensors
    G04045996Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. REMOVE AUTOMATIC TRANSMISSION BREATHER TUBE 
    1. Remove the 2 bolts.
    2. Remove the breather tube.
    Fig 7: Identifying Breather Tube
    G04045997Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. REMOVE AUTOMATIC TRANSMISSION HOUSING 
    1. Remove the 10 bolts.
    2. Remove the transmission housing.
    Fig 8: Identifying Transmission Housing
    G04045998Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. REMOVE EXTENSION HOUSING DUST DEFLECTOR 
    1. Using a brass bar and a hammer, remove the extension housing dust deflector.
      NOTE: Be careful not to damage the extension housing.
    Fig 9: Identifying Extension Housing Dust Deflector
    G04045999Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. REMOVE EXTENSION (ATM) HOUSING SUBASSEMBLY 
    1. Remove the 6 bolts.
      Fig 10: Identifying Bolts
      G04046000Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Using a screwdriver, remove the extension housing sub-assembly.
      Fig 11: Identifying Extension Housing Sub-Assembly
      G04046001Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Using a snap ring plier, remove the snap ring from the extension housing sub-assembly.
    4. Remove the transmission case adaptor radial ball bearing.
      Fig 12: Identifying Transmission Case Adaptor Radial Ball Bearing
      G04046002Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Using a snap ring expander, remove the snap ring.
    6. Remove the thrust needle roller bearing and the 2 thrust bearing races.
    Fig 13: Identifying Thrust Needle Roller Bearing And Thrust Bearing Races
    G04046003Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  10. REMOVE AUTOMATIC TRANSMISSION EXTENSION HOUSING OIL SEAL 
    1. Using a screwdriver, remove the oil seal.
    Fig 14: Identifying Oil Seal
    G04046004Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  11. FIX AUTOMATIC TRANSMISSION CASE SUBASSEMBLY 
    1. Install the transmission case on the overhaul attachment.
    Fig 15: Identifying Transmission Case On Overhaul Attachment
    G04046005Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  12. REMOVE AUTOMATIC TRANSMISSION OIL PAN SUB-ASSEMBLY 
    NOTE: Do not turn the transmission over as this will contaminate the valve body with foreign matter located at the bottom of the pan.
    1. Remove the overflow plug and the gasket.
    2. Remove the drain plug and the gasket.
    3. Remove the 20 bolts, oil pan and gasket.
      Fig 16: Identifying Bolts, Oil Pan And Gasket
      G04046006Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Examine particles in the pan.
      1. Remove the magnets from the oil pan and use them to collect any steel chips. Look carefully for the chips and particles in the pan and on the magnet to anticipate the type of wear which might be found in the transaxle.

        Steel (magnetic): bearing, gear, and plate wear Brass (non-magnetic): bearing wear

    Fig 17: Inspecting For Chips And Steel Particles In Pan
    G04089157Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  13. REMOVE VALVE BODY OIL STRAINER ASSEMBLY 
    1. Turn over the transmission.
    2. Remove the 4 bolts and valve body oil strainer assembly from the valve body.
      Fig 18: Oil Strainer With mounting Bolts
      G04020146Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove the O-ring from the valve body oil strainer assembly.
    Fig 19: Identifying O-Ring For Valve Body Oil Strainer Assembly
    G04046009Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  14. REMOVE TRANSMISSION WIRE 
    1. Remove the bolt and temperature sensor clamp, and separate the ATF temperature sensor.
      Fig 20: Identifying Bolt And Temperature Sensor Clamp
      G04046010Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the 2 bolts and disconnect the 2 clamps.
      Fig 21: Identifying 2 Clamps
      G04046011Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Disconnect the 9 connectors from the solenoid valves.
      Fig 22: Identifying 9 Connectors For Solenoid Valves
      G04046012Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Pull the transmission wire out of the transmission case.
      Fig 23: Locating Transmission Internal Wiring Harness bolt
      G04019558Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Remove the O-ring from the transmission wire.
    Fig 24: Identifying O-Ring And Transmission Wire
    G04046014Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  15. REMOVE TRANSMISSION VALVE BODY ASSEMBLY 
    1. Remove the bolt, detente spring cover and detente spring.
      Fig 25: Identifying Bolt, Detente Spring Cover And Detente Spring
      G04046015Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the 19 bolts.
    3. Remove the valve body assembly.
      Fig 26: Identifying Valve Body Assembly
      G04046016Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  16. REMOVE TRANSAXLE CASE GASKET 
    1. Remove the 3 transaxle case gaskets.
    Fig 27: Identifying Transaxle Case Gaskets
    G04046017Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  17. REMOVE BRAKE DRUM GASKET 
    1. Remove the 3 brake drum gaskets.
    Fig 28: Identifying Brake Drum Gaskets
    G04046018Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  18. REMOVE CHECK BALL BODY 
    1. Remove the check ball body and the spring.
    Fig 29: Identifying Check Ball Body And Spring
    G04046019Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  19. REMOVE C-2 ACCUMULATOR PISTON 
    1. While blowing compressed air into the oil hole, remove the C-2 accumulator piston and the spring.
    2. Remove the 2 O-rings from the piston.
      Fig 30: Identifying C-2 Accumulator Piston And Spring
      G04046020Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE: Take care as the C-3 and B-3 accumulator pistons may jump out.
  20. REMOVE B-3 ACCUMULATOR PISTON 
    1. Applying compressed air to the oil hole, remove the B-3 accumulator piston and the spring.
    2. Remove the 2 O-rings from the piston.
      NOTE: Take care as the C-3 accumulator piston may jump out.
  21. REMOVE C-3 ACCUMULATOR PISTON 
    1. While blowing compressed air into the oil hole, remove the C-3 accumulator piston and the 2 springs.
    2. Remove the 2 O-rings from the piston.
    Fig 31: Identifying C-3 Accumulator Piston And Spring
    G04046021Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  22. REMOVE B-1 ACCUMULATOR VALVE 
    1. Remove the B-1 accumulator valve and the spring.
    Fig 32: Identifying B-1 Accumulator Valve And Spring
    G04046022Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  23. REMOVE PARKING LOCK PAWL BRACKET 
    1. Remove the 3 bolts and the parking lock pawl bracket.
    Fig 33: Identifying Parking Lock Pawl Bracket
    G04019542Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  24. REMOVE PARKING LOCK ROD SUB-ASSEMBLY 
    1. Disconnect the parking lock rod from the manual valve lever.
    Fig 34: View Of Parking Lock Rod And Manual Valve Lever
    G04028669Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  25. REMOVE PARKING LOCK PAWL SHAFT 
    1. Pull out the parking lock pawl shaft from the front side, then remove the lock pawl and the spring.
    2. Remove the E-ring from the shaft.
    Fig 35: Identifying E-Ring For Shaft
    G04046025Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  26. REMOVE MANUAL VALVE LEVER SUB-ASSEMBLY 
    1. Using a hammer and a screwdriver, cut off the spacer and remove it from the shaft.
      Fig 36: Cutting Off Spacer
      G04046026Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Using a pin punch and a hammer, drive out the spring pin.

      HINT:

      Slowly drive out the spring pin so that it does not fall into the transmission case.

    3. Pull the manual valve lever shaft out through the case and remove the manual valve lever.
    Fig 37: Pulling Manual Valve Lever Shaft Out Through Case
    G04046027Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  27. REMOVE MANUAL VALVE LEVER SHAFT OIL SEAL 
    1. Using a screwdriver, remove the 2 oil seals.
    Fig 38: Identifying Oil Seals
    G04046028Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  28. REMOVE OIL PUMP ASSEMBLY 
    1. Remove the 9 bolts from the transmission case.
      Fig 39: Identifying Bolts For Transmission Case
      G04046029Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Using a screwdriver with its tip wrapped with tape, pull out the oil pump.
      NOTE: Do not damage the oil pump.
      Fig 40: Pulling Out Oil Pump
      G04046030Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove the No. 1 thrust bearing race from the oil pump.
    4. Remove the O-ring from the oil pump.
    Fig 41: Identifying O-Ring And Oil Pump
    G04046031Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  29. REMOVE CLUTCH DRUM AND INPUT SHAFT 
    1. Remove the clutch drum and input shaft from the transmission case.
      Fig 42: Identifying Clutch Drum And Input Shaft Assembly For Transmission Case
      G04046032Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the clutch drum thrust washer, 2 thrust needle roller bearings and bearing race.
  30. INSPECT NO. 2 ONE WAY CLUTCH ASSEMBLY (See  INSPECTION   ) 
    Fig 43: Identifying Clutch Drum Thrust Washer, 2 Thrust Needle Roller Bearings And Bearing Race
    G04046033Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  31. REMOVE NO. 2 ONE WAY CLUTCH ASSEMBLY 
    1. Remove the No. 2 one way clutch assembly and clutch drum thrust washer from the clutch drum and input shaft.
    Fig 44: View Of 1 Way no. 2 Clutch Assembly And Clutch Drum Thrust Washer
    G04028658Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  32. REMOVE NO. 3 BRAKE SNAP RING 
    1. Using a screwdriver, remove the No. 3 brake snap ring from the transmission case.
    Fig 45: Removing/Installing Snap Ring
    G04028657Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  33. REMOVE 2ND BRAKE DISC SET 
    1. Remove the flange, 3 discs and 3 plates from the transmission case.
  34. INSPECT 2ND BRAKE DISC SET (See  INSPECTION   ) 
    Fig 46: Identifying Flange, Discs And Plates For Transmission Case
    G04046036Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  35. REMOVE 2ND BRAKE PISTON HOLE SNAP RING 
    1. Using SST, remove the snap ring.

      SST 09350-30020 (09350-07060) 

    Fig 47: Identifying Snap Ring
    G04046037Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  36. REMOVE ONE WAY CLUTCH ASSEMBLY 
    1. Remove the one way clutch assembly and the No. 1 planetary carrier thrust washer from the transmission case.
    Fig 48: Identifying One Way Clutch Assembly And Thrust Washer
    G04046124Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  37. REMOVE 2ND BRAKE CYLINDER 
    1. Remove the 2nd brake cylinder from the transmission case.
    Fig 49: Identifying 2Nd Brake Cylinder And Transmission Case
    G04046039Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  38. REMOVE FRONT PLANETARY GEAR ASSEMBLY 
    1. Remove the front planetary gear assembly and the one way clutch inner race from the transmission case.
      Fig 50: Identifying Front Planetary Gear Assembly
      G04053281Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the thrust needle roller bearing, the No. 3 thrust bearing race and the No. 2 planetary carrier thrust washer from the transmission case.
  39. INSPECT FRONT PLANETARY GEAR ASSEMBLY (See  INSPECTION   ) 
    Fig 51: Identifying Thrust Needle Roller Bearing
    G04046041Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  40. INSPECT ONE WAY CLUTCH ASSEMBLY (See  INSPECTION   ) 
  41. REMOVE FRONT PLANETARY RING GEAR 
    1. Remove the front planetary ring gear from the transmission case.
    Fig 52: Identifying Front Planetary Ring Gear For Transmission Case
    G04046042Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  42. REMOVE CENTER PLANETARY RING GEAR 
    1. Using a screwdriver, remove the snap ring.
    2. Remove the center planetary ring gear from the front planetary ring gear.
      Fig 53: Identifying Snap Ring (1 Of 2)
      G04046043Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Using a screwdriver, remove the snap ring.
    4. Remove the center planetary ring gear flange from the center planetary ring gear.
    5. Remove the thrust needle roller bearing from the front planetary ring gear flange.
    Fig 54: Identifying Snap Ring (2 Of 2)
    G04046044Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  43. REMOVE NO. 1 BRAKE DISC 
    1. Remove the flange, the 3 discs and the 3 plates from the transmission case.
  44. INSPECT NO. 1 BRAKE DISC (See  INSPECTION   ) 
    Fig 55: Identifying Flange, Discs And Plates For Transmission Case
    G04046045Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  45. REMOVE BRAKE PISTON RETURN SPRING SNAP RING 
    1. Using a screwdriver, remove the brake piston return spring snap ring from the transmission case.
    Fig 56: Identifying Brake Piston Return Spring Snap Ring
    G04046046Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  46. REMOVE BRAKE PISTON RETURN SPRING SUBASSEMBLY 
    1. Remove the brake piston return spring, the No. 1 brake piston and the No. 1 brake cylinder from the transmission case.
    Fig 57: Identifying Brake Piston Return Spring
    G04053274Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  47. INSPECT BRAKE PISTON RETURN SPRING SUBASSEMBLY (See  INSPECTION   ) 
  48. REMOVE NO. 1 BRAKE PISTON 
    1. Hold the No. 1 brake cylinder and apply compressed air (392 kPa, 4 kgf/cm2 , 57 psi) to the No. 1 brake cylinder to remove the No. 1 brake piston.
      Fig 58: Identifying No 1 Brake Piston
      G04046048Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT:

      If the piston does not pop out with compressed air, lift the piston out with needle-nose pliers.

    2. Remove the 2 O-rings from the No. 1 brake piston.
  49. REMOVE NO. 2 BRAKE DISC 
    1. Using a screwdriver, remove the snap ring from the transmission case.
      Fig 59: Identifying Snap Ring For Transmission Case
      G04046049Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the 2 flanges, the brake piston return spring, the 4 discs and the 3 plates from the transmission case.
    Fig 60: Identifying 2 Flanges, Brake Piston Return Spring, 4 Discs And 3 Plates
    G04046050Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  50. INSPECT NO. 2 BRAKE DISC (See  INSPECTION   ) 
  51. INSPECT NO. 2 BRAKE PISTON RETURN SPRING SUB-ASSEMBLY (See  INSPECTION   ) 
  52. REMOVE NO. 2 BRAKE PISTON 
    1. Hold the No. 2 brake piston and apply compressed air (392 kPa, 4 kgf/cm2 , 57 psi) to the transmission case to remove the No. 2 brake piston and the No. 2 brake cylinder.

      HINT:

      If the piston does not pop out with compressed air, lift the piston out with needle-nose pliers.

      Fig 61: Identifying No 2 Brake Piston
      G04046051Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the piston from the cylinder.
    3. Remove the 2 O-rings from the No. 2 brake piston.
  53. REMOVE CENTER PLANETARY GEAR ASSEMBLY 
    1. Remove the center planetary gear assembly, the planetary sun gear and the No. 4 thrust bearing race from the transmission case.
  54. INSPECT CENTER PLANETARY GEAR ASSEMBLY (See  INSPECTION   ) 
    Fig 62: View Of Center Planetary Gear Assembly
    G04053268Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  55. REMOVE INTERMEDIATE SHAFT 
    1. Using SST, remove the snap ring from the transmission case.

      SST 09350-30020 (09350-07060) 

      Fig 63: Identifying Snap Ring For Transmission Case
      G04046053Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the intermediate shaft with the No. 3 one way clutch assembly from the transmission case.
  56. INSPECT NO. 3 ONE WAY CLUTCH ASSEMBLY (See  INSPECTION   ) 
    Fig 64: Identifying Intermediate Shaft
    G04046054Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  57. REMOVE NO. 3 ONE WAY CLUTCH ASSEMBLY 
    1. Remove the No. 3 one way clutch assembly and the one way clutch inner race from the intermediate shaft.
    Fig 65: View Of 1 Way No 3 Clutch Assembly & Intermediate Shaft Inner Race
    G04028632Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  58. REMOVE REAR PLANETARY RING GEAR FLANGE SUB-ASSEMBLY 
    1. Remove the No. 8 thrust bearing race, the thrust needle roller bearing, the No. 7 thrust bearing race and the planetary ring gear flange from the intermediate shaft.
    Fig 66: Identifying No 8 Thrust Bearing Race And Thrust Needle Roller Bearing
    G04046056Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  59. INSPECT INTERMEDIATE SHAFT (See  INSPECTION   ) 
  60. REMOVE BRAKE PLATE STOPPER SPRING 
    1. Remove the brake plate stopper spring from the transmission case.
    Fig 67: Identifying Brake Plate Stopper Spring
    G04020090Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  61. REMOVE NO. 4 BRAKE DISC 
    1. Remove the 4 plates, 5 discs and 2 flanges from the transmission case.
  62. INSPECT NO. 4 BRAKE DISC (See  INSPECTION   ) 
    Fig 68: Identifying Plates, Discs And Flanges For Transmission Case
    G04046058Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  63. REMOVE REAR PLANETARY GEAR ASSEMBLY 
    1. Remove the rear planetary gear assembly from the transmission case.
      Fig 69: Identifying Rear Planetary Gear Assembly
      G04046059Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the No. 9 thrust bearing race, thrust bearing race and the thrust needle roller bearing from the rear planetary gear assembly.
      Fig 70: Identifying No 9 Thrust Bearing Race And Thrust Bearing Race
      G04046060Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove the thrust needle roller bearing from the transmission case.
  64. INSPECT REAR PLANETARY GEAR ASSEMBLY (See  INSPECTION   ) 
    Fig 71: Identifying Thrust Needle Roller Bearing
    G04046061Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  65. REMOVE 1ST AND REVERSE BRAKE RETURN SPRING SUB-ASSEMBLY 
    1. Place SST on the 1st and reverse brake return spring sub-assembly and compress the brake return spring.

      SST 09350-30020 (09350-07050) 

      Fig 72: Identifying 1St And Reverse Brake Return Spring Sub-Assembly
      G04046062Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Using the SST, remove the snap ring and the brake return spring.

      SST 09350-30020 (09350-07070) 

  66. INSPECT 1ST AND REVERSE BRAKE RETURN SPRING SUB-ASSEMBLY (See  INSPECTION   ) 
  67. REMOVE BRAKE APPLY TUBE 
    1. Remove the brake apply tube from the 1st and reverse brake piston.
    Fig 73: Identifying Brake Apply Tube With 1St And Reverse Brake Piston
    G04046063Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  68. REMOVE 1ST AND REVERSE BRAKE PISTON 
    1. Hold the 1st and reverse brake piston and blow compressed air (392 kPa, 4 kgf/cm2 , 57 psi) into the transmission case to remove the brake piston.

      HINT:

      If the piston does not pop out with compressed air, lift the piston out with needle-nose pliers.

      Fig 74: Identifying 1St And Reverse Brake Piston
      G04046064Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the brake apply tube from the piston.
    3. Remove the O-ring from the brake piston.
  69. REMOVE BRAKE REACTION SLEEVE 
    1. Using SST, remove the reaction sleeve.

      SST 09350-30020 (09350-07080) 

    2. Remove the 2 O-rings from the reaction sleeve.
    Fig 75: Identifying Reaction Sleeve
    G04046065Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  70. REMOVE NO. 4 BRAKE PISTON 
    1. Using SST, remove the No. 4 brake piston.

      SST 09350-30020 (09350-07080) 

    2. Remove the 2 O-rings from the No. 4 brake piston.
    Fig 76: Identifying No 4 Brake Piston
    G04046066Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002