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Home >> Lexus >> 2020 >> LS 500h AWD >> Repair and Diagnosis >> Drivelines & Axles >> Wheel Hubs >> Axle And Differential - Service Information (1 Of 3) >> FRONT AXLE HUB (for 2WD) >> Installation [10/2017 - 10/2020] >> Procedure

Installation [10/2017 - 10/2020]: Procedure

  1. INSTALL DISC BRAKE AIR GUIDE PLATE 
    1. Install disc brake air guide plate to the steering knuckle LH.
  2. INSTALL FRONT AXLE HUB SUB-ASSEMBLY LH 
    1. Using a hexagon socket wrench 12 mm, install the front axle hub sub-assembly LH with the 4 bolts.

      Torque: 80 N.m (816 kgf/cm, 59 ft.lbf) 

  3. CONNECT STEERING KNUCKLE LH 

    Refer to PROCEDURE - Step 9

  4. TEMPORARILY TIGHTEN LOWER NO. 2 SUSPENSION ARM ASSEMBLY LH 
    1. GTY799165Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Insert the bolt from the back of the vehicle. Then temporarily tighten the lower No. 2 suspension arm assembly LH with the nut.

  5. TEMPORARILY TIGHTEN FRONT PNEUMATIC CYLINDER ASSEMBLY WITH SHOCK ABSORBER LH (w/ Air Suspension) 

    Refer to PROCEDURE - Step 5

  6. TEMPORARILY TIGHTEN FRONT SHOCK ABSORBER ASSEMBLY LH (w/o Air Suspension) 

    Refer to PROCEDURE - Step 4

  7. CONNECT FRONT STABILIZER LINK ASSEMBLY LH 

    Refer to PROCEDURE - Step 7

  8. CONNECT FRONT HEIGHT CONTROL SENSOR SUB-ASSEMBLY LH 

    Refer to PROCEDURE - Step 6

  9. TEMPORARILY TIGHTEN FRONT LOWER SUSPENSION ARM ASSEMBLY LH 
    1. GTY799111Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Temporarily tighten the front lower suspension arm assembly LH to the steering knuckle assembly LH with the nut.

  10. CONNECT TIE ROD ASSEMBLY LH 

    Refer to PROCEDURE - Step 2

  11. INSTALL FRONT DISC BRAKE DUST COVER LH 
    1. Install the front disc brake dust cover LH with the 3 bolts.

      Torque: 8.0 N.m (82 kgf/cm, 71 in.lbf) 

  12. INSPECT FRONT AXLE HUB BEARING LOOSENESS 

    See step  6

  13. INSPECT FRONT AXLE HUB RUNOUT 

    See step  7

  14. INSTALL FRONT DISC LH 
  15. CONNECT DISC BRAKE CYLINDER ASSEMBLY 
    1. GTY834359Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Temporarily install the 5 hub nuts to the front axle hub LH to secure the front disc LH.

      NOTE:

      Do not apply excessive force to the flexible hose.

    2. Temporarily install the disc brake cylinder assembly LH with the bolt on the lower side of the disc brake cylinder assembly LH.
    3. Remove the SST.
    4. Install the disc brake cylinder assembly LH with the 2 bolts.
      GTY807495Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Torque: 135 N.m (1377 kgf/cm, 100 ft.lbf) 

    5. Install the front flexible hose bracket LH to the steering knuckle with the bolt.
      GTY807498Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Torque: 21 N.m (214 kgf/cm, 15 ft.lbf) 

    6. Connect the flexible hose to the front flexible hose bracket LH with the bolt.
      GTY807497Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Torque: 20 N.m (204 kgf/cm, 15 ft.lbf) 

    7. for RH side:
      1. GTY807486Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Attach the guide to connect the pad wear indicator wire assembly.

  16. CONNECT FRONT SKID CONTROL SENSOR WIRE 
    1. for LH Side:
      GTY807488Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Install the sensor clamp with the bolt.

        Torque: 10 N.m (102 kgf/cm, 7 ft.lbf) 

        NOTE:

        Do not twist the skid control sensor wire when installing it.

      2. Connect the skid control sensor wire connector.
    2. for RH Side:
      GTY834360Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Install the sensor clamp with the bolt.

        Torque: 10 N.m (102 kgf/cm, 7 ft.lbf) 

        NOTE:

        Do not twist the skid control sensor wire when installing it.

      2. Connect the skid control sensor wire connector.
      3. Connect the pad wear indicator connector.
    3. Install the sensor clamp with the nut.

      Torque: 8.5 N.m (87 kgf/cm, 75 in.lbf) 

      GTY807487Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      Do not twist the skid control sensor wire when installing it.

  17. STABILIZE SUSPENSION 

    Refer to PROCEDURE - Step 8

  18. FULLY TIGHTEN LOWER NO. 2 SUSPENSION ARM ASSEMBLY LH 
    1. Tighten the installation bolt of the lower No. 2 suspension arm assembly LH.

      Torque: 130 N.m (1326 kgf/cm, 96 ft.lbf) 

  19. FULLY TIGHTEN FRONT LOWER SUSPENSION ARM ASSEMBLY LH 
    1. Tighten the installation nut of the steering knuckle assembly LH.

      Torque: 145 N.m (1479 kgf/cm, 107 ft.lbf) 

      NOTE:

      Further tighten the nut up to 60° if the holes for the clip are not aligned.

    2. Install a new clip.
  20. FULLY TIGHTEN FRONT SHOCK ABSORBER ASSEMBLY LH (w/o Air Suspension) 
    1. Fully tighten the front shock absorber assembly bolt.

      Torque: 110 N.m (1122 kgf/cm, 81 ft.lbf) 

      NOTE:

      Because the nut has its own stopper, do not turn the nut. Tighten the bolt with the nut secured.

  21. FULLY TIGHTEN FRONT PNEUMATIC CYLINDER ASSEMBLY WITH SHOCK ABSORBER LH (w/ Air Suspension) 
    1. Fully tighten the front pneumatic cylinder assembly with shock absorber LH bolt.

      Torque: 110 N.m (1122 kgf/cm, 81 ft.lbf) 

      NOTE:

      Because the nut has its own stopper, do not turn the nut. Tighten the bolt with the nut secured.

  22. INSTALL REAR LOWER ARM MOUNTING REINFORCEMENT SUB-ASSEMBLY LH 

    Refer to PROCEDURE - Step 16

  23. INSTALL ENGINE SIDE COVER LH 

    Refer to PROCEDURE - Step 17

  24. INSTALL NO. 2 ENGINE UNDER COVER ASSEMBLY 

    Refer to PROCEDURE - Step 145 [10/2017 - 09/2018] , or refer to PROCEDURE - Step 145 [09/2018 - 10/2020]

  25. INSTALL FRONT WHEEL 

    Refer to PROCEDURE - Step 1

  26. CONNECT BRAKE BOOSTER PUMP CONNECTOR 

    Refer to PROCEDURE - Step 4

  27. CHECK FOR SPEED SENSOR SIGNAL 

    Refer to TEST MODE PROCEDURE [10/2017 - 10/2020]

  28. INSPECT AND ADJUST FRONT WHEEL ALIGNMENT 

    Refer to ADJUSTMENT [10/2017 - 10/2020]

  29. INSPECT AND ADJUST VEHICLE HEIGHT (w/ Air Suspension) 

    Refer to ADJUSTMENT [10/2017 - 10/2020]

  30. PERFORM INITIALIZATION 

    Refer to INITIALIZATION [10/2017 - 09/2018] , or refer to INITIALIZATION [09/2018 - 10/2020]

  31. ADJUST HEADLIGHT AIMING 

    Refer to ADJUSTMENT [10/2017 - 10/2020]

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