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Direct Clutch: Disassembly

  1. INSPECT PACK CLEARANCE OF DIRECT CLUTCH 
    1. Install the direct clutch and needle roller bearing on the transaxle rear cover.
    2. Using a dial indicator, measure the direct clutch pack clearance while applying and releasing compressed air (392 kPa, 4.0 kgf/cm2 , 57 psi).

      Standard pack clearance: 

      0.652 to 0.872 mm (0.0257 to 0.0343 in.) 

      If the pack clearance is not as specified, inspect the discs, plates and flange.

      Fig 1: Measuring Direct Clutch Pack Clearance
      G05388546Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. REMOVE DIRECT MULTIPLE DISC CLUTCH DISC 
    1. Using a screwdriver, pry the snap ring out from the direct clutch drum.
      Fig 2: Prying Snap Ring Out From Direct Clutch Drum
      G05388547Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the flange, 3 discs and 3 plates from the direct clutch drum.
      Fig 3: Identifying Flange, Discs And Plates
      G05388548Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. REMOVE DIRECT CLUTCH RETURN SPRING SUB-ASSEMBLY 
    1. Place SST on the clutch balancer and compress the spring with a press.

      SST 09387-00020 

    2. Using a snap ring expander, remove the snap ring from the direct clutch drum.
      Fig 4: Removing Snap Ring From Direct Clutch Drum
      G05246368Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:
      • Stop the press when the spring sheet is lowered to the place 1 to 2 mm (0.039 to 0.078 in.) from the snap ring groove.
      • This prevents the spring sheet from being deformed.
      • Do not expand the snap ring excessively.
    3. Remove the clutch balancer from the direct clutch drum.
      Fig 5: Removing Clutch Balancer From Direct Clutch Drum
      G05388550Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Remove the piston return spring from the direct clutch drum.
      Fig 6: Removing Piston Return Spring From Direct Clutch Drum
      G05388551Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Install the direct clutch drum on the transaxle rear cover.
    6. Holding the direct clutch piston with your hand, apply compressed air (392 kPa, 4.0 kgf/cm2 , 57 psi) to the oil hole and remove the direct clutch piston.
      NOTE:
      • Applying the air may cause the piston to jump out. When removing the piston, hold it using a piece of cloth.
      • Do not splash ATF with the compressed air.
      Fig 7: Applying Compressed Air To Oil Hole
      G05388552Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002