UNDERDRIVE Clutch: Components

Fig 1: Exploded View Of Underdrive Clutch Components

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DISASSEMBLY 

1. INSPECT UNDERDRIVE PACK CLEARANCE 

   HINT:

2. REMOVE UNDERDRIVE CLUTCH FLANGE NO. 2 HOLE SNAP RING 
   1. Using a screwdriver, remove the underdrive clutch flange No. 2 snap ring.
   Fig 2: Removing Underdrive Clutch Flange Snap Ring

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3. REMOVE UNDERDRIVE CLUTCH DISC NO. 1 
   1. Remove the flange, 4 discs and 4 plates from the underdrive clutch drum.
   Fig 3: Removing Flange, Discs And Plates From Underdrive Clutch Drum

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4. REMOVE UNDERDRIVE CLUTCH RETURN SPRING SUB-ASSEMBLY 
   1. Place SST on the clutch balancer and compress the spring with a press.

      SST 09350-32014 

   2. Using a snap ring expander, remove the snap ring.
      NOTE:

      • Stop the press when the spring seat is lowered to the place 1 to 2 mm (0.039 to 0.078 in.) from the snap ring groove.
      • This prevents the spring seat from being deformed.
      • Do not expand the snap ring excessively.
      Fig 4: Removing Underdrive Clutch Return Spring Sub-Assembly

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   3. Remove the clutch balancer from the underdrive clutch drum.
      Fig 5: Removing Clutch Balancer From Underdrive Clutch Drum

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   4. Remove the return spring from the underdrive clutch drum.
   Fig 6: Removing Return Spring From Underdrive Clutch Drum

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5. REMOVE UNDERDRIVE CLUTCH PISTON SET 
   1. Install the underdrive clutch to the transaxle case.
      NOTE: Be careful not to damage the oil seal ring.
   2. Holding the underdrive clutch piston by hand, apply compressed air (392 kPa, 4.0 kgf/sm² , 57 psi) to the transaxle case to remove the underdrive clutch piston.
   Fig 7: Applying Compressed Air To Transaxle Case

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6. REMOVE UNDERDRIVE CLUTCH DRUM O-RING 
   1. Using a screwdriver, remove the O-ring from the underdrive clutch drum.
   Fig 8: Removing O-Ring From Underdrive Clutch Drum

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002