Automatic Transmission Unit Reassembly

Transmission. Lexus Gs430, Gs300. Uzs190 Grs190
A760E Automatic Transmission. Lexus Gs430, Gs300. Uzs190 Grs190

  1. BEARING POSITION

  2. INSTALL BRAKE PISTON NO.4

  3. INSTALL BRAKE REACTION SLEEVE

  4. INSTALL 1ST AND REVERSE BRAKE PISTON

  5. INSTALL 1ST AND REVERSE BRAKE RETURN SPRING SUB-ASSEMBLY

  6. INSTALL REAR PLANETARY GEAR ASSEMBLY

  7. INSPECT PACK CLEARANCE OF FIRST AND REVERSE BRAKE PISTON

  8. INSTALL BRAKE DISC NO.4

  9. INSTALL BRAKE PLATE STOPPER SPRING

  10. INSTALL REAR PLANETARY RING GEAR FLANGE SUB-ASSEMBLY

  11. INSTALL 1 WAY NO.3 CLUTCH ASSEMBLY

  12. INSTALL INTERMEDIATE SHAFT

  13. INSTALL CENTER PLANETARY GEAR ASSEMBLY

  14. INSTALL BRAKE PISTON NO.2

  15. INSTALL BRAKE DISC NO.2

  16. INSPECT PISTON STROKE OF BRAKE PISTON NO.2

  17. INSTALL BRAKE PISTON NO.1

  18. INSTALL BRAKE PISTON RETURN SPRING SUB-ASSEMBLY

  19. INSTALL BRAKE PISTON RETURN SPRING SNAP RING

  20. INSTALL CENTER PLANETARY RING GEAR

  21. INSTALL FRONT PLANETARY RING GEAR

  22. INSTALL FRONT PLANETARY GEAR ASSEMBLY

  23. INSPECT PISTON STROKE OF BRAKE PISTON NO.1

  24. INSTALL BRAKE DISC NO.1

  25. INSTALL 2ND BRAKE PISTON

  26. INSTALL 2ND BRAKE CYLINDER

  27. INSTALL 1 WAY CLUTCH ASSEMBLY

  28. INSTALL 2ND BRAKE PISTON HOLE SNAP RING

  29. INSTALL 2ND BRAKE DISC SET

  30. INSTALL BRAKE NO.3 SNAP RING

  31. INSTALL 1 WAY NO.2 CLUTCH ASSEMBLY

  32. INSTALL CLUTCH DRUM AND INPUT SHAFT

  33. INSTALL OIL PUMP ASSEMBLY

  34. INSTALL MANUAL VALVE LEVER SHAFT OIL SEAL

  35. INSPECT INDIVIDUAL PISTON OPERATION

  36. INSTALL MANUAL VALVE LEVER SUB-ASSEMBLY

  37. INSTALL PARKING LOCK PAWL SHAFT

  38. INSTALL PARKING LOCK ROD SUB-ASSEMBLY

  39. INSTALL PARKING LOCK PAWL BRACKET

  40. INSTALL B-1 ACCUMULATOR VALVE

  41. INSTALL C-3 ACCUMULATOR PISTON

  42. INSTALL B-3 ACCUMULATOR PISTON

  43. INSTALL C-2 ACCUMULATOR PISTON

  44. INSTALL CHECK BALL BODY

  45. INSTALL BRAKE DRUM GASKET

  46. INSTALL TRANSAXLE CASE GASKET

  47. INSTALL TRANSMISSION VALVE BODY ASSEMBLY

  48. INSTALL TRANSMISSION WIRE

  49. INSTALL VALVE BODY OIL STRAINER ASSEMBLY

  50. INSTALL TRANSMISSION OIL CLEANER MAGNET

  51. INSTALL AUTOMATIC TRANSMISSION OIL PAN SUB-ASSEMBLY

  52. INSTALL AUTOMATIC TRANSMISSION EXTENSION HOUSING OIL SEAL

  53. INSTALL EXTENSION HOUSING DUST (ATM) DEFLECTOR

  54. INSTALL ALL EXTENSION (ATM) HOUSING SUB-ASSEMBLY

  55. INSTALL AUTOMATIC TRANSMISSION HOUSING

  56. INSTALL AUTOMATIC TRANSMISSION BREATHER TUBE

  57. INSTALL TRANSMISSION REVOLUTION SENSOR

  58. INSTALL TRANSMISSION OIL COOLER

  59. INSTALL PARK/NEUTRAL POSITION SWITCH ASSEMBLY

  60. INSTALL TRANSMISSION CONTROL SHAFT LEVER RH

  61. INSTALL TRANSAXLE CASE COVER UPPER

Automatic Transmission Unit -- Reassembly



1. BEARING POSITION



Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly


Mark
Front Race Diameter
Inside/Outside
Thrust Bearing Diameter
Inside/Outside
Rear Race Diameter
Inside/Outside
A
74.2 mm (2.921 in.) / 87.74 mm (3.454 in.)
71.9 mm (2.831 in.) / 85.6 mm (3.370 in.)
-
B
38.0 mm (1.496 in.) / 57.0 mm (2.244 in.)
43.4 mm (1.709 in.) / 58.3 mm (2.295 in.)
-
C
-
55.7 mm (2.193 in.) / 76.4 mm (3.008 in.)
-
D
-
-
53.7 mm (2.114 in.) / 74.0 mm (2.913 in.)
E
33.4 mm (1.315 in.) / 49.0 mm (1.929 in.)
32.1 mm (1.264 in.) / 49.35 mm (1.943 in.)
32.1 mm (1.264 in.) / 49.0 mm (1.929 in.)
F
-
21.5 mm (0.847 in.) / 40.8 mm (1.606 in.)
-
G
-
43.6 mm (1.717 in.) / 61.0 mm (2.402 in.)
47.1 mm (1.854 in.) / 67.1 mm (2.642 in.)
H
37 mm (1.45 in.) / 52.3 mm (2.059 in.)
34.6 mm (1.362 in.) / 52.0 mm (2.047 in.)
-
I
36.9 mm (1.453 in.) / 49.7 mm (1.957 in.)
36.1 mm (1.421 in.) / 52.5 mm (2.067 in.)
36.1 mm (1.421 in.) / 51.0 mm (2.007 in.)


2. INSTALL BRAKE PISTON NO.4


    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Coat 2 new O-rings with ATF, and install them to the brake reaction sleeve.

  1. Coat 2 new O-rings with the ATF, and install them to the brake piston No.4.

  1. Install the brake piston No.4 to the reaction sleeve.

    NOTICE:
    Do not damage the O-rings.


3. INSTALL BRAKE REACTION SLEEVE


    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Coat a new O-ring with ATF, and install it to the reaction sleeve.

  1. With the brake piston No.4 underneath (the rear side), install the brake reaction sleeve and the brake piston No.4 to the transmission case.

    NOTICE:
    Do not damage the O-rings.


4. INSTALL 1ST AND REVERSE BRAKE PISTON


    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Coat a new O-ring with ATF.

  1. Install the O-ring on the 1st and reverse brake piston.

  1. With the spring seat of the piston facing upwards (the front side), place the piston in the transmission case.

    NOTICE:
    Do not damage the O-ring.


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Place the brake return spring onto the brake piston No.4.



5. INSTALL 1ST AND REVERSE BRAKE RETURN SPRING SUB-ASSEMBLY


    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Place SST on the brake return spring, and compress the return spring.

    SST
    09350-30020(09350-07050)
  1. Using SST, install the snap ring.

    SST
    09350-30020(09350-07070)


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the brake apply tube with its protruding part fitting into the groove of the transmission case as shown in the illustration.

    NOTICE:
    Engage the 1st and reverse brake piston claw with the protrusion of the brake apply tube.


6. INSTALL REAR PLANETARY GEAR ASSEMBLY


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the thrust bearing race No.9.

    Race diameter:

    Inside
    Outside
    Thrust bearing race
    47.1 mm (1.854 in.)
    67.1 mm (2.642 in.)


    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Install the 2 thrust needle roller bearings.

    Thrust needle roller bearing diameter:

    Inside
    Outside
    Bearing A
    21.5 mm (0.847 in.)
    40.8 mm (1.606 in.)
    Bearing B
    43.6 mm (1.717 in.)
    61.0 mm (2.402 in.)


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the rear planetary gear assembly.



7. INSPECT PACK CLEARANCE OF FIRST AND REVERSE BRAKE PISTON


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Make sure that the 1st and reverse brake piston moves smoothly while applying compressed air intermittently into the transmission case.



    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Using vernier calipers, measure the level difference (length A) between the upper surface of the brake apply tube and the hitting surface of the brake flange No.4 at both ends across the 1st and reverse brake piston diameter, and calculate the average.

    NOTICE:
    The 1st and reverse brake piston must be securely installed to the end face of the transmission case.
    HINT:
    Length A = 22.05 to 22.91 mm (0.8681 to 0.9020 in.)


    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Using vernier calipers, measure the combined thickness (length B) of the brake flanges, the 4 brake plates No.4 and the 4 brake discs No.4 at both ends across the diameter, and calculate the average.

    HINT:
    Length B = 23.11 to 23.89 mm (0.9098 to 0.9405 in.)
    Pack Clearance = Length A - Length B - 0.22 mm (0.0087 in.) + 1.8 mm (0.071 in.)
    Pack Clearance:
    0.4 to 0.7 mm (0.016 to 0.028 in.)
    NOTICE:
    Install a selective flange (t = 2.6 mm) when measuring the moving distance. (shaded area in the illustration.)
  1. If the pack clearance is outside the standard, select and install a brake flange that brings the pack clearance to be within the standard.

    HINT:
    There are 8 types of flanges that can be used to adjust the pack clearance. Select the one with the most appropriate thickness.
    Thickness H:
    NO.
    Thickness H
    NO.
    Thickness H
    0
    0 mm (0 in.)
    8
    0.8 mm (0.03150 in.)
    2
    0.2 mm (0.00787 in.)
    10
    1.0 mm (0.03937 in.)
    4
    0.4 mm (0.01575 in.)
    12
    1.2 mm (0.04724 in.)
    6
    0.6 mm (0.02362 in.)
    14
    1.4 mm (0.05512 in.)


8. INSTALL BRAKE DISC NO.4


    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Install the sleeve, 4 plates, the 4 discs and the flange.

    Install in order:
    P = Plate, D = Disc, F = Flange, S = Sleeve
    F - D - P - D - P - D - P - D - P - S


9. INSTALL BRAKE PLATE STOPPER SPRING


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the brake plate stopper spring.



10. INSTALL REAR PLANETARY RING GEAR FLANGE SUB-ASSEMBLY


    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Install the thrust bearing race No.8, the thrust needle roller bearing, the thrust bearing race No.7 and the planetary ring gear flange to the intermediate shaft.

    Bearing and race diameter:

    Inside
    Outside
    Thrust bearing race No.7
    33.4 mm (1.315 in.)
    49.0 mm (1.929 in.)
    Thrust needle roller bearing
    32.1 mm (1.264 in.)
    49.35 mm (1.943 in.)
    Thrust bearing race No.8
    32.1 mm (1.264 in.)
    49.0 mm (1.929 in.)


11. INSTALL 1 WAY NO.3 CLUTCH ASSEMBLY


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the 1 way No.3 clutch assembly and the 1 way clutch inner race to the intermediate shaft.



12. INSTALL INTERMEDIATE SHAFT


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the intermediate shaft with the 1 way No.3 clutch assembly to the transmission case.



    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Using SST, install the snap ring.

    SST
    09350-30020(09350-07050,09350-07060)


13. INSTALL CENTER PLANETARY GEAR ASSEMBLY


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the center planetary gear assembly and the planetary sun gear to the transmission case.

  1. Coat the thrust bearing race with petroleum jelly, and install it onto the center planetary ring gear.

    Race diameter:

    Inside
    Outside
    Race
    53.7 mm (2.114 in.)
    74.0 mm (2.913 in.)


14. INSTALL BRAKE PISTON NO.2


    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Coat 2 new O-rings with ATF, and install them to the brake piston No.2.

  1. Being careful not to damage the O-rings, press the brake piston No.2 into the brake cylinder No.2.

  1. Install the brake piston No.2 to the transmission case.

    HINT:
    Install the brake cylinder No.2 so that the projection protrudes from the upside of the transmission case.


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Check that the oil pressure apply hole of the brake cylinder No.2 aligns with the oil pressure apply hole of the transmission case.



15. INSTALL BRAKE DISC NO.2


    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Install the 2 flanges, 3 plates, 4 discs and brake piston return spring.

    Install in order:
    P = Plate, D = Disc, F = Flange
    F - D - P - D - P - D - P - D - F


    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Using SST and a press, install the brake No.2 spring snap ring.

    SST
    09351-40010(09351-04010,09351-04020,09351-04040,09351-04050)


16. INSPECT PISTON STROKE OF BRAKE PISTON NO.2


  1. Inspect the piston stroke of the brake piston No.2.



      Lexus Gs430, Gs300. Uzs190 Grs190
    1. Make sure that the brake piston No.2 moves smoothly while applying compressed air intermittently into the transmission case.



    2. Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
    3. Using SST and a dial indicator, measure the moving distance (distance A) of the clutch disc at both ends across the diameter while blowing air from the oil hole as shown in the illustration, and calculate the average.

      SST
      09350-30020(09350-06120)
      Piston Stroke:
      0.6 to 0.9 mm (0.024 to 0.035 in.)
    4. If the piston stroke is outside the standard, select and install a brake flange that brings the piston stroke within the standard.

      HINT:
      There are 8 types of flanges that can be used to adjust the pack clearance. Select one with the most appropriate thickness.
      Flange thickness:
      No.
      Thickness
      0
      2.0 mm (0.079 in.)
      1
      2.1 mm (0.083 in.)
      2
      2.2 mm (0.087 in.)
      3
      2.3 mm (0.091 in.)
      4
      2.4 mm (0.094 in.)
      5
      2.5 mm (0.098 in.)
      6
      2.6 mm (0.102 in.)
      7
      2.7 mm (0.106 in.)


17. INSTALL BRAKE PISTON NO.1


    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Coat 2 new O-rings with ATF, and install them on the brake piston No.1.

  1. Be careful not to damage the O-rings. Press the brake piston No.1 into the brake cylinder No.1.



18. INSTALL BRAKE PISTON RETURN SPRING SUB-ASSEMBLY


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the brake piston return spring and the brake piston No.1 with the brake cylinder No.1 to the transmission case.

    HINT:
    Install the brake cylinder No.1 so that the projection protrudes from the upside of the transmission case.


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Check that the oil pressure apply hole of the brake cylinder No.1 aligns with the oil pressure apply hole of the transmission case.



19. INSTALL BRAKE PISTON RETURN SPRING SNAP RING


    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Using SST and a press, install the brake piston return spring snap ring.

    SST
    09351-40010(09351-04010,09351-04030,09351-04040,09351-04050)


20. INSTALL CENTER PLANETARY RING GEAR
  1. Install the thrust needle roller bearing to the front planetary ring gear flange.

    Thrust needle roller bearing diameter:

    Inside
    Outside
    Thrust needle roller bearing
    55.7 mm (2.193 in.)
    76.4 mm (3.008 in.)


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the center planetary ring gear and the front planetary ring gear flange on the front planetary ring gear.



    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Using a screwdriver, install the snap ring.

    NOTICE:
    Install the snap ring to the ring gear so that the both ends of the snap ring come to the center of a protrusion on the ring gear.


21. INSTALL FRONT PLANETARY RING GEAR


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the front planetary ring gear to the transmission case.



22. INSTALL FRONT PLANETARY GEAR ASSEMBLY


    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Install the thrust needle roller bearing and the thrust washer.

  1. Coat the thrust bearing race with petroleum jelly, and install it onto the front planetary ring gear.

    Thrust needle roller bearing and race diameter:

    Inside
    Outside
    Bearing
    43.4 mm (1.709 in.)
    58.3 mm (2.295 in.)
    Race
    38.0 mm (1.496 in.)
    57.0 mm (2.244 in.)


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the front planetary gear assembly and the 1 way clutch inner race to the transmission case.



23. INSPECT PISTON STROKE OF BRAKE PISTON NO.1


  1. Inspect the piston stroke of the brake piston No.1.



      Lexus Gs430, Gs300. Uzs190 Grs190
    1. Make sure the brake piston No.1 moves smoothly while applying compressed air intermittently into the transmission case.



    2. Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
    3. Using vernier calipers, measure the level difference (length A) between the upper surface of the brake piston No.1 and the hitting surface of the brake flange No.1 at both ends across the brake piston No.1 diameter.

    4. Using vernier calipers, measure the thickness (length B) of the brake flange, the 3 brake plates No.1 and the 3 brake discs No.1 altogether at both ends across the diameter, and calculate the average.

      HINT:
      Length A = 15.29 to 15.77 mm (0.6020 to 0.6209 in.)
      Length B = 14.72 to 15.12 mm (0.5795 to 0.5953 in.)
      Piston stroke = Length A - Length B
      Piston stroke:
      0.42 to 0.72 mm (0.017 to 0.028 in.)
      NOTICE:
      Install a selective flange (t = 2.2 mm) when measuring the moving distance. (shaded area in the illustration.)
      If the piston stroke is outside the specification, parts may have been assembled incorrectly, so check and reassemble again.
      If the piston stroke is still outside the specification range, select another flange that brings the piston stroke within the specification.
      HINT:
      There are 4 different thicknesses for the flange that brings the piston stroke within the specification.
      Flange thickness:
      No.
      Thickness
      0
      2.0 mm (0.079 in.)
      1
      2.2 mm (0.087 in.)
      2
      2.4 mm (0.094 in.)
      3
      2.6 mm (0.102 in.)


24. INSTALL BRAKE DISC NO.1


    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Install the 3 plates, the 3 discs and the flange.

    Install in order:
    P = Plate, D = Disc, F = Flange
    F - D - P - D - P - D - P


25. INSTALL 2ND BRAKE PISTON


    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Coat 2 new O-rings with ATF, and install them to the 2nd brake piston.

  1. Be careful not to damage the O-rings. Press the 2nd brake piston into the 2nd brake cylinder.



    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Using SST and a press, install the return spring with the snap ring.

    NOTICE:
    Be sure that the end gap of the snap ring is not aligned with the spring retainer claw.
    SST
    09351-40010(09351-04060,09351-04070)


26. INSTALL 2ND BRAKE CYLINDER


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the 2nd brake cylinder to the transmission case.



    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Check that the oil pressure apply hole of the brake cylinder aligns with the oil pressure apply hole of the transmission case.



27. INSTALL 1 WAY CLUTCH ASSEMBLY


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the 1 way clutch assembly and the thrust washer to the transmission case.



28. INSTALL 2ND BRAKE PISTON HOLE SNAP RING


    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Using SST, install the snap ring.

    SST
    09350-30020(09350-07060)


29. INSTALL 2ND BRAKE DISC SET


    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Install the cushion plate, flange, the 4 discs and the 4 plates to the transmission case.

    Install in order:
    P = Plate, D = Disc, F = Flange, C = Cushion Plate
    F - D - P - D - P - D - P - D - P - C


30. INSTALL BRAKE NO.3 SNAP RING


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Using a screwdriver, install the snap ring.

    SST
    09350-30020(09350-07060)


31. INSTALL 1 WAY NO.2 CLUTCH ASSEMBLY


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the 1 way No.2 clutch assembly and washer No.2 to the clutch drum and input shaft.



32. INSTALL CLUTCH DRUM AND INPUT SHAFT


    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Install the thrust needle roller bearings and thrust washer.

  1. Coat the race with petroleum jelly and install it onto the clutch drum and input shaft assembly.

    Thrust needle roller bearing and diameter:

    Inside
    Outside
    Thrust needle roller bearing A
    71.9 mm (2.831 in.)
    85.6 mm (3.370 in.)
    Thrust needle roller bearing B
    34.6 mm (1.362 in.)
    52.0 mm (2.047 in.)
    Bearing Race
    37.0 mm (1.457 in.)
    52.3 mm (2.059 in.)


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the clutch drum and input shaft onto the transmission case.



33. INSTALL OIL PUMP ASSEMBLY


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the thrust bearing race No.1 to the front oil pump.


    Inside
    Outside
    Race
    74.2 mm (2.921 in.)
    87.74 mm (3.454 in.)


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Coat a new O-ring with ATF, and install it around the oil pump assembly.

  1. Place the oil pump through the input shaft, and align the bolt holes of the oil pump assembly with the transmission case.

  1. Hold the input shaft, and lightly press the oil pump body to slide the oil seal rings into the overdrive direct clutch drum.



    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the 10 bolts.

    Torque:
    21 N*m{214 kgf*cm, 15 ft.*lbf}


34. INSTALL MANUAL VALVE LEVER SHAFT OIL SEAL


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Using SST and a hammer, drive in 2 new oil seals.

    SST
    09350-30020(09350-07110)
  1. Coat the oil seal lips with MP grease.



35. INSPECT INDIVIDUAL PISTON OPERATION


    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Check the operating sound while applying compressed air into the oil holes indicated in the illustration.

    HINT:
    When inspecting the O/D direct clutch, check with the C3 accumulator piston hole closed.
    If there is no sound, disassemble and check the parts installation condition.

    1. Clutch No.2 (C2)

    2. Clutch No.4 (C4)

    3. Clutch No.3 (C3)

    4. Clutch No.1 (C1)

    5. Brake No.3 (B3)

    6. Brake No.1 (B1)

    7. Brake No.2 (B2)

    8. Brake No.4 (B4)



36. INSTALL MANUAL VALVE LEVER SUB-ASSEMBLY


    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Install a new spacer to the manual valve lever.

  1. Install the manual valve lever shaft to the transmission case through the manual valve lever.



    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Using a hammer, drive in a new spring pin.



    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Align the manual valve lever indentation with the spacer hole, and stake them together with the punch.

  1. Make sure that the shaft rotates smoothly.



37. INSTALL PARKING LOCK PAWL SHAFT


    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Install the E-ring to the shaft.

  1. Install the parking lock pawl, the shaft and the spring.



38. INSTALL PARKING LOCK ROD SUB-ASSEMBLY


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Connect the parking lock rod to the manual valve lever.



39. INSTALL PARKING LOCK PAWL BRACKET


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Place the parking lock pawl bracket onto the transmission case and tighten the 3 bolts.

    Torque:
    7.4 N*m{75 kgf*cm, 65 in.*lbf}


    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Shift the manual valve lever to the P position, and confirm the planetary gear is correctly locked up by the lock pawl.



40. INSTALL B-1 ACCUMULATOR VALVE


    Lexus Gs430, Gs300. Uzs190 Grs190
    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the 2 springs and the accumulator valve to the hole.

    B-1 accumulator spring:
    Inner spring:
    Free length
    Outer diameter
    Color
    44.98 mm (1.7709 in.)
    11.30 mm (0.445 in.)
    Natural
    Outer spring:
    Free length
    Outer diameter
    Color
    46.36 mm (1.8252 in.)
    17.10 mm (0.6732 in.)
    Natural


41. INSTALL C-3 ACCUMULATOR PISTON


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Coat 2 new O-rings with ATF, and install them to the piston.



    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the 2 springs and the accumulator piston to the hole.

    C-3 accumulator spring:
    Inner spring:
    Free length
    Outer diameter
    Color
    44.0 mm (1.732 in.)
    14.0 mm (0.551 in.)
    Yellow
    Outer spring:
    Free length
    Outer diameter
    Color
    76.65 mm (3.0178 in.)
    20.10 mm (0.7913 in.)
    Natural


42. INSTALL B-3 ACCUMULATOR PISTON


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Coat 2 new O-rings with ATF, and install them to the piston.



    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the spring and the accumulator piston to the hole.

    Accumulator spring:
    Free length
    Outer diameter
    Color
    64.5 mm (2.539 in.)
    19.5 mm (0.768 in.)
    Orange


43. INSTALL C-2 ACCUMULATOR PISTON


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Coat 2 new O-rings with ATF, and install them to the piston.



    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the spring and the accumulator piston to the hole.

    Accumulator spring:
    Free length
    Outer diameter
    Color
    63.14 mm (2.4858 in.)
    16.0 mm (0.6299 in.)
    Light Gray


44. INSTALL CHECK BALL BODY


    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Install the check ball body and the spring.



45. INSTALL BRAKE DRUM GASKET


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the 3 brake drum gaskets.



46. INSTALL TRANSAXLE CASE GASKET


    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Install the 3 transaxle case gaskets.



47. INSTALL TRANSMISSION VALVE BODY ASSEMBLY


    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Align the groove of the manual valve lever with the pin of the manual valve.



    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Install the 20 bolts.

    Torque:
    11 N*m{110 kgf*cm, 8 ft.*lbf}
    HINT:
    Each bolt length is indicated below.
    Bolt length:
    Bolt A:
    25 mm (0.98 in.)
    Bolt B:
    36 mm (1.42 in.)
    Bolt C:
    45 mm (1.77 in.)
    Bolt D:
    50 mm (1.97 in.)


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the detent spring and the detent spring cover with the bolt.

    Torque:
    10 N*m{102 kgf*cm, 7 ft.*lbf}


48. INSTALL TRANSMISSION WIRE


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install a new O-ring to the transmission wire.

  1. Install the transmission wire.

  1. Install the bolt.

    Torque:
    5.4 N*m{55 kgf*cm, 48 in.*lbf}


    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Connect the 9 solenoid connectors.

  1. Install the ATF temperature sensor and clamp with the bolt.

    Torque:
    10 N*m{102 kgf*cm, 7 ft.*lbf}
  1. Install the clamps with the 2 bolts.

    Torque:
    Bolt A:
    6.4 N*m{65 kgf*cm, 57 in.*lbf}
    Bolt B:
    10 N*m{102 kgf*cm, 7 ft.*lbf}


49. INSTALL VALVE BODY OIL STRAINER ASSEMBLY


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Coat a new O-ring with ATF, and install it to the valve body oil strainer assembly.

  1. Install the oil strainer with the 4 bolts.

    Torque:
    10 N*m{102 kgf*cm, 7 ft.*lbf}


50. INSTALL TRANSMISSION OIL CLEANER MAGNET


    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Install the 3 transmission oil cleaner magnets.



51. INSTALL AUTOMATIC TRANSMISSION OIL PAN SUB-ASSEMBLY
  1. Install a new gasket on the oil pan.

  1. Install and tighten the 20 bolts.

    Torque:
    4.4 N*m{45 kgf*cm, 39 in.*lbf}
  1. Install a new gasket and the drain plug.

    Torque:
    20 N*m{204 kgf*cm, 15 ft.*lbf}
  1. Install a new gasket and the over flow plug.

    Torque:
    20 N*m{204 kgf*cm, 15 ft.*lbf}


52. INSTALL AUTOMATIC TRANSMISSION EXTENSION HOUSING OIL SEAL


    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Using SST and a hammer, install a new oil seal.

    SST
    09309-37010


53. INSTALL EXTENSION HOUSING DUST (ATM) DEFLECTOR


    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Using SST and a press, install a new extension housing dust deflector.

    SST
    09950-60020(09951-01030)


54. INSTALL ALL EXTENSION (ATM) HOUSING SUB-ASSEMBLY


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the transmission case adapter radial ball bearing to the extension housing.

  1. Using snap ring pliers, install a new snap ring.



    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the thrust needle roller bearing and the 2 bearing races.

  1. Using a snap ring expander, install a new snap ring.



    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Using a feeler gauge, measure the clearance between the snap ring and the race.

    Clearance:
    0.02 to 0.12 mm (0.0008 to 0.0047 in.)
    If the clearance is outside the standard, select another race that brings the clearance within the standard.
    HINT:
    There are 12 different thicknesses for the race.
    Flange thickness:
    NO.
    Thickness
    NO.
    Thickness
    1
    3.80 mm (0.1496 in.)
    7
    4.10 mm (0.1614 in.)
    2
    3.85 mm (0.1516 in.)
    8
    4.15 mm (0.1634 in.)
    3
    3.90 mm (0.1535 in.)
    9
    4.20 mm (0.1653 in.)
    4
    3.95 mm (0.1555 in.)
    10
    4.25 mm (0.1673 in.)
    5
    4.00 mm (0.1575 in.)
    11
    4.30 mm (0.1693 in.)
    6
    4.05 mm (0.1594 in.)
    12
    4.35 mm (0.1713 in.)
  1. Clean the threads of the bolts and the case with white gasoline.



    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Apply FIPG to the extension housing as shown in the illustration.

    FIPG:
    Part No. 08826-00090, THREE BOND 1281 or equivalent


    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Install the extension housing with 6 new bolts.

    Torque:
    34 N*m{347 kgf*cm, 25 ft.*lbf}
    HINT:
    Each bolt length is indicated below.
    Bolt length:
    Bolt A:
    45 mm (1.772 mm)
    Bolt B:
    35 mm (1.378 mm)


55. INSTALL AUTOMATIC TRANSMISSION HOUSING


    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Clean the threads of the bolts and the case with white gasoline.

  1. Install the transmission housing with the 10 bolts.

    Torque:
    A (14 mm bolt):
    34 N*m{347 kgf*cm, 25 ft.*lbf}
    B (17 mm bolt):
    57 N*m{581 kgf*cm, 42 ft.*lbf}


56. INSTALL AUTOMATIC TRANSMISSION BREATHER TUBE


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the breather tube.

  1. Install the 2 bolts.

    Torque:
    5.4 N*m{55 kgf*cm, 48 in.*lbf}


57. INSTALL TRANSMISSION REVOLUTION SENSOR


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Coat 2 new O-rings with ATF, and install them to the transmission revolution sensors.

  1. Install the 2 transmission revolution sensors.

  1. Install the 2 bolts.

    Torque:
    5.4 N*m{55 kgf*cm, 48 in.*lbf}


58. INSTALL TRANSMISSION OIL COOLER


    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Coat 2 new O-rings with ATF, and install them to the transmission oil cooler.

  1. Coat 2 new O-rings with ATF, and install them to the spacer.

  1. Install the spacer and transmission oil cooler with the 3 bolts.

    Torque:
    21 N*m{214 kgf*cm, 16 ft.*lbf}


59. INSTALL PARK/NEUTRAL POSITION SWITCH ASSEMBLY


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the park/neutral position switch onto the manual valve lever shaft, and temporarily install the adjusting bolt.

  1. Install a new lock washer. Install and tighten the nut.

    Torque:
    6.9 N*m{70 kgf*cm, 61 in.*lbf}


    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Using the control shaft lever, move the manual lever shaft back all the way and then forward 2 notches. It is now in neutral.



    Lexus Gs430, Gs300. Uzs190 Grs190.A760E Automatic Transmission.Electronic Controlled Automatic Transmission System.Automatic Transmission Unit  Reassembly
  1. Align the neutral basic line with the switch groove as shown in the illustration, and tighten the adjusting bolt.

    Torque:
    13 N*m{130 kgf*cm, 9 ft.*lbf}


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Using a screwdriver, bend the tabs of the lock washer.

    HINT:
    Bend at least 2 lock washer tabs.


60. INSTALL TRANSMISSION CONTROL SHAFT LEVER RH


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the control shaft lever RH, spring washer and the nut.

    Torque:
    16 N*m{163 kgf*cm, 12 ft.*lbf}


61. INSTALL TRANSAXLE CASE COVER UPPER
  1. Install the transaxle case cover upper with the 2 bolts.

    Torque:
    5.4 N*m{55 kgf*cm, 48 in.*lbf}