LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2008 >> FJ Cruiser RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 105 (Automatic Transmission - U151F) >> Automatic Transaxle Unit >> Inspection

Automatic Transaxle Unit: Inspection

WARNING: This page is about a different car, the 2007 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT MULTIPLE DISC CLUTCH HUB 
    1. Using a caliper gauge, measure the inside diameter of the forward clutch hub bushing.

      Standard inside diameter: 23.03 to 23.05 mm (0.9067 to 0.9075 in.) 

      Maximum inside diameter: 23.09 mm (0.9091 in.) 

      NOTE: Check the contact surface of the bushing in the direct clutch shaft. If any scratch or discoloration is found, replace the direct clutch sub-assembly with a new one.

      If the inside diameter is greater than the maximum, replace the forward clutch hub with a new one.

      Fig 1: Measuring Inside Diameter Of Forward Clutch Hub Bushing
      G04487811Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. INSPECT NO. 2 UNDERDRIVE CLUTCH DISC 
    1. Check if the sliding surfaces of the disc, plate and flange are worn or burnt.

      If necessary, replace them.

      NOTE:
      • If the lining of the disc comes off or is discolored, or if a part of the groove is worn, replace the all discs.
      • Before installing new discs, immerse them in ATF for at least 15 minutes.
        Fig 2: Checking Sliding Surfaces Of Disc, Plate And Flange Are Worn Or Burnt
        G04487812Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. INSPECT OVERDRIVE DIRECT CLUTCH DRUM SUB-ASSEMBLY 
    1. Using a caliper gauge, measure the inside diameter of the forward clutch hub bushing.

      Standard inside diameter: 23.025 to 23.046 mm (0.9065 to 0.9073 in.) 

      Maximum inside diameter: 23.09 mm (0.9091 in.) 

      NOTE: Check the contact surface of the bushing in the direct clutch shaft. If any scratch or discoloration is found, replace the direct clutch sub-assembly with a new one.

      If the inside diameter is greater than the maximum, replace the forward clutch hub with a new one.

      Fig 3: Measuring Inside Diameter Of Forward Clutch Hub Bushing
      G04487813Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. INSPECT 2ND BRAKE CLUTCH DISC 
    1. Check if the sliding surface of the disc, plate and flange are worn or burnt.

      If necessary, replace them.

      NOTE:
      • If the lining of the disc comes off or is discolored, or if a part of the groove is worn, replace all the discs.
      • Before installing new discs, immerse them in ATF for at least 15 minutes.
        Fig 4: Checking Sliding Surface Of Disc, Plate And Flange
        G04487814Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. INSPECT 1ST AND REVERSE BRAKE CLUTCH DISC 
    1. Check if the sliding surface of the disc, plate and flange are worn or burnt.

      If necessary, replace them.

      NOTE:
      • If the lining of the disc comes off or is discolored, or if a part of the groove is worn, replace all the discs.
      • Before installing new discs, immerse them in ATF for at least 15 minutes.
        Fig 5: Checking Sliding Surface Of Disc, Plate And Flange
        G04487815Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. INSPECT 1ST AND REVERSE BRAKE RETURN SPRING SUB-ASSEMBLY 
    1. Using a vernier caliper, measure the free length of the spring together with the spring seat.

      Standard free length: 17.61 mm (0.6933 in.) 

      If the result is not as specified, replace the spring.

      Fig 6: Measuring Free Length Of Spring Together With Spring Seat
      G04487816Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. INSPECT UNDERDRIVE BRAKE RETURN SPRING SUB-ASSEMBLY 
    1. Using a vernier caliper, measure the free length of the spring together with the spring seat.

      Standard free length: 13.24 mm (0.5213 in.) 

      If the result is not as specified, replace the spring.

      Fig 7: Measuring Free Length Of Spring Together With Spring Seat
      G04487817Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. INSPECT PACK CLEARANCE OF 1ST AND REVERSE BRAKE 
    1. Using a vernier caliper, measure the distance between the disc surface and the contact surface of the 2nd brake cylinder and transaxle case (Dimension A).
    2. Select an appropriate flange so that the pack clearance will meet the specified value.

      Standard pack clearance: 1.16 to 1.35 mm (0.0457 to 0.0531 in.) 

      Fig 8: Measuring (Dimension A)
      G04377687Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT:

      Piston stroke = Dimension A - Flange thickness

      Standard flange thickness 

      FLANGE THICKNESS

      Mark Thickness Mark Thickness
      1 1.8 mm (0.071 in.) 5 2.2 mm (0.087 in.)
      2 1.9 mm (0.075 in.) 6 2.3 mm (0.091 in.)
      3 2.0 mm (0.079 in.) 7 2.4 mm (0.094 in.)
      4 2.1 mm (0.083 in.) 8 2.5 mm (0.098 in.)
  9. INSPECT PACK CLEARANCE OF 2ND BRAKE 
    1. Using a vernier caliper, measure the distance between the disc surface and snap ring surface (Dimension B).
    2. Select an appropriate flange so that the pack clearance will meet the specified value.

      Standard pack clearance: 0.62 to 0.91 mm (0.0244 to 0.0358 in.) 

      HINT:

      Piston stroke = Dimension B - Flange thickness - Snap ring thickness 1.6 mm (0.063 in.)

      Standard flange thickness 

      Fig 9: Measuring Dimension B
      G04377734Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      THICKNESS CHART

      Mark Thickness Mark Thickness
      1 3.0 mm (0.118 in.) 5 3.4 mm (0.134 in.)
      2 3.1 mm (0.122 in.) 6 3.5 mm (0.138 in.)
      3 3.2 mm (0.126 in.) 7 3.6 mm (0.142 in.)
      4 3.3 mm (0.130 in.) - -
  10. INSPECT PACK CLEARANCE OF UNDERDRIVE BRAKE 
    1. Using a dial indicator, measure the underdrive brake pack clearance while applying and releasing compressed air (392 kPa, 4.0 kgf/cm2 , 57 psi).

      Standard pack clearance: 1.81 to 2.20 mm (0.0713 to 0.0866 in.) 

      HINT:

      Select an appropriate flange from the table below so that it will meet the specified value.

      Fig 10: Measuring Underdrive Brake Pack Clearance
      G04487820Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard flange thickness 

      THICKNESS CHART

      Mark Thickness Mark Thickness
      1 3.0 mm (0.118 in.) 4 3.1 mm (0.122 in.)
      2 3.2 mm (0.126 in.) 5 3.3 mm (0.130 in.)
      3 3.4 mm (0.134 in.) - -
  11. INSPECT UNDERDRIVE 1-WAY CLUTCH ASSEMBLY 
    1. Install the underdrive clutch assembly to the 1-way clutch.
    2. Check that the underdrive 1-way clutch locks when turned clockwise and rotates freely when turned counterclockwise as shown in the illustration. If the result is not as specified, replace the underdrive 1-way clutch.
      Fig 11: Checking Underdrive Clutch Assembly Rotation
      G04425501Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  12. INSPECT INPUT SHAFT END PLAY 
    1. Using a dial indicator, measure the input shaft end play.

      Standard end play: 0.262 to 1.244 mm (0.01 to 0.049 in.) 

      If the result is not as specified, replace the input shaft or thrust needle roller bearing.

      Fig 12: Measuring Input Shaft End Play
      G04487822Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
scientia non olet · About LEMON Manuals