FixVault
Home › Subaru › 2021 › Outback Limited XT › Repair and Diagnosis › Transmission › Automatic Trans › CVT Transaxle System (Tr690) › Reverse Brake › Assembly

Reverse Brake: Assembly

  1. Install the reverse brake piston, return spring and spring retainer.
    NOTE: Apply CVTF to the sealing area of reverse brake piston.
    G13951259Courtesy of SUBARU OF AMERICA, INC.
  2. Compress the return spring using the ST and a press to install the snap ring.

    Preparation tool: 

    ST: COMPRESSOR SPECIAL TOOL (18762AA001)

    G13951260Courtesy of SUBARU OF AMERICA, INC.
  3. Blow compressed air through the hole shown in the figure, and check the reverse brake piston operation.
    G13951261Courtesy of SUBARU OF AMERICA, INC.
  4. Check the clutch clearance.
    1. Stack the driven plate, drive plate and retaining plate on the surface table.
    2. Set the magnet stand and dial gauge (spindle type) to the surface table, apply the dial gauge (spindle type) to the retaining plate, and adjust the reading to the zero point.
    3. Measure the compression amount.
      • When using ST
      1. Place the ST1 and ST2 on the retaining plate.
        CAUTION: If the ST1 and ST2 are deformed, cracked, scratched or chipped, replace with new ones.

        Preparation tool: 

        ST1: OIL SEAL INSTALLER (398437700)

        ST2: GAUGE (499575600)

        G13951262Courtesy of SUBARU OF AMERICA, INC.
      2. Press the center of ST by applying a force of 60 N using push/pull gauge, and then measure the compression amount "A".
        NOTE: Measure at four points at 90° intervals and calculate the average.
      G13951263Courtesy of SUBARU OF AMERICA, INC.
      • When not using ST
      1. Scale and record the weight "Q" of a flat board which will be put on the retaining plate.
        NOTE:
        • Use a stiff board which does not bend against load as a flat board to be put on the retaining plate.
        • Use a flat board weighing less than 8.6 kg (18.9 lb).
      2. Put the flat board on retaining plate.
        G13951264Courtesy of SUBARU OF AMERICA, INC.
      3. Using the following formula, calculate load "N", a force of pressing with push/pull gauge.

        N = 84 N (8.6 kg, 18.9 lb) - Q

        N Load
        84 N (8.6 kg, 18.9 lb) Load applied to clutch plate
        Q Board weight
      4. Press the center of board by applying a force of "N" using push/pull gauge, and then measure the compression amount "A".
        NOTE: Measure at four points at 90° intervals and calculate the average.
      G13951265Courtesy of SUBARU OF AMERICA, INC.
    4. Install the dish plate, drive plate, driven plate, retaining plate and snap ring.
      NOTE: Face the stamped surface of dish plate toward the reverse brake piston side.
      G13951266Courtesy of SUBARU OF AMERICA, INC.
    5. Measure the clearance "C1" between snap ring and retaining plate using a thickness gauge.
      G13951267Courtesy of SUBARU OF AMERICA, INC.
    6. Using the following calculation, calculate the clutch clearance "C".

      Service limit: 

      3.38 mm (0.133 in)

      C = A + C1

      C Clutch clearance (mm (in))
      A Measured value (mm (in)) of step (3)
      C1 Measured value (mm (in)) of step (5)
    7. If the value exceeds the limit, perform the following operations.
      1. Measure thickness of the retaining plate.
      2. Replace the drive plate and driven plate with new parts, and then perform measurement from step (1) again.

        Initial standard: 

        2.88 - 3.18 mm (0.113 - 0.125 in)

      3. If it exceeds the initial standard value, adjust the thickness of retaining plate to be within the initial standard value.
About FixVault