To the top of the document
Captiva
To Previous PageTo Next Page
GMDE Start PageLoad static TOCLoad dynamic TOCHelp?


L7B53AN2
Display graphicTranslations of text in graphics


Forward (C1) and Direct Clutch (C2) Disassembly

    Tools Required

    J 28585 Snap Ring Remover
    J 45186 Forward and Direct Clutch Spring Compressor
    J 25024-A Servo Piston/Clutch Spring Compressor
    J 23327 Clutch Spring Compressor
  1. Remove the seal ring, thrust bearing and race.
    1. Remove the seal ring from the input shaft assembly.


    L7B53AN3
    Display graphicTranslations of text in graphics


    1. Remove the thrust bearing and race.


    L7B53AN4
    Display graphicTranslations of text in graphics


  2. Remove the flange, disc and plate of forward clutch (C1).
    1. Using J 28585, remove the snap ring.


    L7B53AN5
    Display graphicTranslations of text in graphics


    1. Remove the 1 flange, 4 discs and 4 plates.


    L7B53AN6
    Display graphicTranslations of text in graphics


  3. Remove the flange, disc, plate and cushion plate of direct clutch (C2).
    1. Using 28585, remove the snap ring.


    L7B53AN7
    Display graphicTranslations of text in graphics


    1. Remove the 1 flange, 4 discs, 4 plates and 1 cushion plate.


    L7B53AN8
    Display graphicTranslations of text in graphics


  4. Remove the return spring assembly.
    1. Place J 25024-A in a vise with the forcing screw on the bottom and backed out.
    2. Place J 45186 over the shaft of the forward direct clutch housing and input shaft assembly.
    3. Place J 21420-2 from J 23327 on the top of the forcing screw of J 24024-A.
    4. With the forcing screw, compress the clutch spring to allow the removal of the snap ring.
    5. Use J 28585 or snap ring pliers to remove the snap ring.
    6. Remove the tools.


    L7B53AN9
    Display graphicTranslations of text in graphics


    1. Remove the return spring assembly.


    L7B53AP1
    Display graphicTranslations of text in graphics


    Caution : Wear safety glasses when using compressed air in order to prevent eye injury.

  5. Remove the direct clutch(C2) piston.
    1. Install the input shaft assembly on the rear case.
    While pushing the piston by hand, apply compressed air (4kg/cm²) into the oil passage as shown in the figure and remove the C2 piston.

    Important : Be careful not to damage the seal rings in the rear case.



    L7B53AP2
    Display graphicTranslations of text in graphics


    1. Remove the O-ring from the C2 piston.


    L7B53AP3
    Display graphicTranslations of text in graphics


    Caution : Wear safety glasses when using compressed air in order to prevent eye injury.

  6. Remove the forward clutch (C1) piston.
    1. While pushing the C1 piston by hand, apply compressed air (4kg/cm²) into the oil passage as shown in the figure and remove the C1 piston.


    L7B53AP4
    Display graphicTranslations of text in graphics


    1. Remove the O-ring from the C1 piston.

Forward Clutch (C1) and Direct Clutch (C2) Inspection

  1. Inspect the flange, disc and plate.
    1. Check that the sliding surface of disc and plate is not worn or burnt. If the disc or plate is worn or burnt, replace it.

    Important : Replace new clutch discs by soaking them at least 2 hours in ATF.



    L7B53AP5
    Display graphicTranslations of text in graphics


  2. Inspect the forward clutch(C1) and direct clutch(C2) piston.
    1. Check that the check ball is free by shaking the piston.
    2. Check that the valve does not leak by applying compressed air.


L7B53AP4
Display graphicTranslations of text in graphics


Forward Clutch (C1) and Direct Clutch (C2) Assembly

    Tools Required

    J 28585 Snap Ring Remover
    J 45186 Forward and Direct Clutch Spring Compressor
    J 25024-A Servo Piston/Clutch Spring Compressor
    J 23327 Clutch Spring Compressor
  1. Install the forward clutch (C1) piston.
    1. Coat the new O-rings with ATF and install them on the C1 piston.
    2. Coat the inner surface of drum with ATF.
    3. Press the C1 piston into the drum. Be careful not to damage the O-rings.


    L7B53AP2
    Display graphicTranslations of text in graphics


  2. Install the direct clutch (C2).
    1. Coat the new O-rings with ATF and install them on the piston.
    2. Coat the inner surface of C1 piston with ATF.
    3. Press the piston into the C1 piston.


    L7B53AN9
    Display graphicTranslations of text in graphics


  3. Install the return spring assembly.
    1. Place the return spring assembly on the direct clutch (C2) piston.


    L7B53AN8
    Display graphicTranslations of text in graphics


    Important : Do not align the end gap of snap ring with the spring retainer claw.

    1. Place J 25024-A in a vise with the forcing screw on the bottom and backed out.
    2. Place J 45186 over the shaft of the forward direct clutch housing and input shaft assembly.
    3. Place J 21420-2 from J 23327 on the top of the forcing screw of J 24024-A.
    4. With the forcing screw, compress the clutch spring to allow the installation of the snap ring.
    5. Use J 28585 or snap ring pliers to install the snap ring.
    6. Remove the tools.


    L7B53AN7
    Display graphicTranslations of text in graphics


  4. Install the flange, disc, plate and cushion plate of direct clutch (C2).
    1. Install the cushion plate.

    Important : Be sure the direction of cushion plate.

    1. Install the flange, discs and plates as shown in the figure.

    Important : Be sure number and order of flange and discs and plates.

    Clutch/Brake
    Flange (F)
    Plate (P)
    Disc (D)
    Cushion Plate (CP)
    Direct Clutch (C2)
    1
    4
    4
    1


    L7B53AN6
    Display graphicTranslations of text in graphics


    1. Using J 28585, install the snap ring in the groove. Check that the end gap of snap ring is not aligned with one of the cutouts.


    L7B53AN5
    Display graphicTranslations of text in graphics


  5. Install the flange,disc and plate of direct clutch (C1).
    1. Install the flange, discs and plates as shown in the figure.

    Important : Be sure number and order of flange and discs and plates.

    Clutch/Brake
    Flange (F)
    Plate (P)
    Disc (D)
    Forward Clutch (C1)
    1
    4
    4


    L7B53AN4
    Display graphicTranslations of text in graphics


    1. Using J 28585, install the snap ring in the groove. Check that the end gap of snap ring is not aligned with one of the cutouts.


    L7B53AN3
    Display graphicTranslations of text in graphics


  6. Install the seal ring, thrust bearing and race.
    1. Install the thrust bearing and race.


    L7B53AN2
    Display graphicTranslations of text in graphics


    1. Coat the new seal ring with ATF, install it into the groove of the input shaft assembly.


    L7B53AP6
    Display graphicTranslations of text in graphics


    Caution : Wear safety glasses when using compressed air in order to prevent eye injury.

  7. Check the piston stroke of direct clutch (C2).
    1. Install the input shaft assembly on the rear case and set a dial indicator as shown in the figure.
    2. Apply the compressed air (4kg/cm²) and measure the C2 piston stroke.
    If the C2 piston stroke is out of standards,select another flange.


    L7B53AP7
    Display graphicTranslations of text in graphics


    Caution : Wear safety glasses when using compressed air in order to prevent eye injury.

  8. Check the piston stroke of forward clutch (C1).
    1. Install the input shaft assembly on the rear case and set a dial indicator as shown in the figure.
    2. Apply the compressed air (4kg/cm²) and measure the C1 piston stroke.
    If the C1 piston stroke is out of standards,select another flange.


L7B53AP8
Display graphicTranslations of text in graphics


Planetary Gear Assembly Inspection

  1. Inspect the planetary gear bushing.
    1. Using a dial indicator, measure the inner diameter of planetary gear bushing.

    Important : Measure at different places and take an average. If it is greater than the maximum, replace it with a new planetary gear assembly.

    Inner diameter:
    Standard : 30.056-30.082 mm (1.183-1.184 in.)
    Maximum: 30.132 mm (1.186 in.)


    L7B53AP9
    Display graphicTranslations of text in graphics


  2. Inspect the planetary sun gear.
    1. Using a dial indicator, measure the inner diameter of planetary sun gear bushing.

    Important : Measure at different places and take an average. If it is greater than the maximum, replace it with a new planetary gear assembly.

    Inner diameter:
    Standard : 22.200-22.226 mm (0.874-0.875 in.)
    Maximum: 22.276 mm (0.877 in.)


    L7B53AQ1
    Display graphicTranslations of text in graphics




L7B53AU2
Display graphicTranslations of text in graphics


Front Planetary Ring Gear Disassembly

  1. Remove the 1 way clutch No.2 (F2).
    1. Remove the 1 way clutch No.2 (F2) from the front planetary ring gear.


    L7B53AU3
    Display graphicTranslations of text in graphics


    1. Remove the snap ring with a screwdriver.
    2. Remove the front planetary ring gear flange.


L7B53AU3
Display graphicTranslations of text in graphics


Front Planetary Ring Gear Assembly

  1. Install the 1 way clutch No.2 (F2).
    1. Install front planetary ring gear flange.
    2. Install the snap ring.


    L7B53AU2
    Display graphicTranslations of text in graphics


    1. Install the 1 way clutch No.2(F2) to the front planetary ring gear.


L7B53AU4
Display graphicTranslations of text in graphics


Operation Check Of 1 Way Clutch No.2 (F2)

  1. Hold the front ring gear and check that the F2 inner race should turn freely counterclockwise and should lock clockwise.


L7B53AQ2
Display graphicTranslations of text in graphics


Underdrive Clutch (C3) Disassembly

    Tools Required

    J 28585 Snap Ring Remover
    J 23327 Clutch Spring Compressor
    J 25024-A Servo Piston/Clutch Spring Compressor
    J 45186 Forward and Direct Clutch Spring Compressor
  1. Remove the underdrive clutch(C3) flange, disc and plate.
    1. Remove the snap ring with a screwdriver.


    L7B53AQ3
    Display graphicTranslations of text in graphics


    1. Remove the 1 flange, 4 discs and 4 plates.


    L7B53AQ4
    Display graphicTranslations of text in graphics


    Important : Be careful not to damage the underdrive front planetary sun gear.

  2. Remove the underdrive clutch(C3) return spring assembly.
    1. Place J 25024-A in a vise with the forcing screw on the bottom and backed out.
    2. Place J 45186 on the underdrive clutch(C3) return spring assembly.
    3. Place J 21420-2 from J 23327 on top of the forcing screw of J 25024-A.
    4. Place the clutch housing with the J 45186 on J 21420-2 and under the arms of J 25024-A.
    5. With the forcing screw, compress the clutch spring to allow the removal of the snap ring.
    6. Use J 28585 or snap ring pliers to remove the snap ring.
    7. Remove the return spring assembly.


    L7B53AQ5
    Display graphicTranslations of text in graphics


    Caution : Wear safety glasses when using compressed air in order to prevent eye injury.

  3. Remove the underdrive clutch(C3) piston.
    1. Cover any 2 holes among 4 holes for oil passage of underdrive clutch (C3) with figures. Apply compressed air (4kg/cm²) to any 1 hole and remove the C3 piston.


    L7B53AQ6
    Display graphicTranslations of text in graphics


    1. Remove the O-rings from the C3 piston.

Underdrive Clutch (C3) Inspection

  1. Inspect the flange, disc and plate.
    1. Check that the sliding surface of disc and plate is not worn or burnt. If the disc or plate is worn or burnt, replace it.

    Important : Replace new clutch discs by soaking them at least 2 hours in ATF.



    L7B53AQ7
    Display graphicTranslations of text in graphics


  2. Inspect the underdrive clutch (C3) piston.
    1. Check that the check ball is free by shaking the piston.
    2. Check that the valve does not leak by applying compressed air.


    L7B53AQ8
    Display graphicTranslations of text in graphics


  3. Inspect the underdrive clutch(C3) drum.
    1. Using a dial indicator, measure the inner diameter of underdrive clutch(C3) drum bushing.

    Important : Measure at different places and take an average. If it is greater than the maximum, replace it with a new one.

    Inner diameter :
    Standard : 36.125-36.150 mm (1.422-1.423 in )
    Maximum: 36.200 mm (1.425 in.)


L7B53AQ6
Display graphicTranslations of text in graphics


Underdrive Clutch (C3) Assembly

    Tools Required

    J 28585 Snap Ring Remover
    J 23327 Clutch Spring Compressor
    J 25024-A Servo Piston/Clutch Spring Compressor
    J 45186 Forward and Direct Clutch Spring Compressor
  1. Install the underdrive clutch (C3) piston.
    1. Coat the new O-rings with ATF and install them on the piston.
    2. Coat the inner surface of C3 drum with ATF.
    3. Press the C3 piston into the C3 drum.

    Important : Be careful not to damage the O-ring.



    L7B53AQ9
    Display graphicTranslations of text in graphics


  2. Install the underdrive clutch (C3) return spring assembly.
    1. Place the underdrive clutch (C3) return spring assembly on the underdrive clutch (C3) piston.


    L7B53AQ4
    Display graphicTranslations of text in graphics


    1. Place J 25024-A in a vise with the forcing screw on the bottom and backed out.
    2. Place J 45186 on the underdrive clutch(C3) return spring assembly.
    3. Place J 21420-2 from J 23327 on top of the forcing screw of J 25024-A.
    4. Place the clutch housing with the J 45186 on J 21420-2 and under the arms of J 25024-A.
    5. With the forcing screw, compress the clutch spring to allow the installation of the snap ring.
    6. Use J 28585 or snap ring pliers to install the snap ring.

    Important : Be sure the end gap of snap ring is not aligned with the spring retainer claw.



    L7B53AQ3
    Display graphicTranslations of text in graphics


  3. Install the flange,disc and plate of underdrive clutch (C3).
    1. Install the flange, plates and discs as shown in the figure.

    Important : Be sure number and order of flange, plates and discs.

    Clutch/Brake
    Flange (F)
    Plate (P)
    Disc (D)
    Underdrive Clutch (C3)
    1
    4
    4


    L7B53AQ2
    Display graphicTranslations of text in graphics


    1. Install the snap ring with a screwdriver in the groove. Check that the end gap of snap ring is not aligned with one of the cutouts.

  4. Check the piston stroke of underdrive clutch (C3).
  5. If the C3 piston stroke is out of standards, select another flange.


L7B53AR1
Display graphicTranslations of text in graphics


Underdrive Brake (B4) Pistion Disassembly

  1. Remove the underdrive brake (B4) piston.
    1. Using a screwdriver, remove the E-ring.


    L7B53AR2
    Display graphicTranslations of text in graphics


    1. Remove the B4 piston assembly as shown in the figure.


    L7B53AR3
    Display graphicTranslations of text in graphics


  2. Inspect the spring.
    1. Measure the free length and outer diameter of outer and inner springs.
    Part name
    Free length
    Outer diameter
    Outer spring
    40.24 mm (1.584 in.)
    20.3 mm (0.799 in.)
    Inner spring
    13.5 mm (0.531 in.)
    10.0 mm (0.394 in.)


L7B53AR1
Display graphicTranslations of text in graphics


Underdrive Brake (B4) Pistion Assembly

  1. Install the underdrive brake (B4) piston.
    1. Install the B4 piston as shown in the figure.
    2. Coat the new O-ring with ATF, install it into the groove of B4 piston.


    L7B53AR4
    Display graphicTranslations of text in graphics


    1. Using the needle nose pliers, install the new E-ring into the groove of the B4 piston rod.


L7B53AR5
Display graphicTranslations of text in graphics


Valve Body Disassembly

    Note : The valve body is only available as a complete unit for a service. The only components that can be independently serviced are the shift solenoids and the manual valve.
  1. Remove the manual valve.
    1. Remove the manual valve.


    L7B53AR6
    Display graphicTranslations of text in graphics


  2. Remove the shift solenoids (SS1, SS2, SS3, SS4, SS5).
    1. Remove the 5 bolts and the 5 solenoids.


    L7B53AR7
    Display graphicTranslations of text in graphics




L7B53AR8
Display graphicTranslations of text in graphics


Valve Body Inspection

  1. Inspect the shift solenoid (SS1, SS2,S S3, SS4, SS5).
    1. Check the resistance with an ohmmeter.


L7B53AR6
Display graphicTranslations of text in graphics


Valve Body Assembly

  1. Install the shift solenoids (SS1, SS2, SS3, SS4, SS5).
    1. Replace the O-ring of each solenoid and install the 5 solenoids.

    Important : Make sure to use new O-ring and not to damage the O-ring.

    1. Tighten the 5 bolts of each solenoids.

    Tighten
    Tighten the solenoid bolt to 7 N•m (62 lb-in).



    L7B53AR7
    Display graphicTranslations of text in graphics




    L7B53AR5
    Display graphicTranslations of text in graphics


  2. Install the manual valve.
    1. Install the manual valve.


To Previous PageTo Next Page
© Copyright Chevrolet Europe. All rights reserved