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Home >> Lexus >> 2020 >> LS 500 Base, RWD >> Repair and Diagnosis >> Drivelines & Axles >> Wheel Hubs >> Axle And Differential - Service Information (1 Of 3) >> FRONT AXLE HUB (for AWD) >> On-Vehicle Inspection [10/2023 - ] >> Procedure

On-Vehicle Inspection [10/2023 - ]: Procedure

  1. AIR SUSPENSION CONTROL PROHIBITED (w/ Air Suspension) 

    Refer to PRECAUTION [12/2017 - ]

  2. REMOVE FRONT WHEEL 

    Refer to REMOVAL [10/2023 - ]

  3. DISCONNECT DISC BRAKE CYLINDER ASSEMBLY 

    See step  7

  4. REMOVE FRONT DISC LH 
  5. INSPECT FRONT AXLE HUB BEARING LOOSENESS 
    1. Using a dial indicator, check for looseness near the center of the front axle hub sub-assembly.

      Maximum Looseness

      0.05 mm (0.00196 in.)

      NOTE:
      • Ensure that the dial indicator is set perpendicular to the measurement surface.
      • Keep the magnet of the dial indicator away from the front speed sensor.

      HINT: 

      If the looseness exceeds the maximum, replace the front axle hub sub-assembly.

      GTY1236267Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. INSPECT FRONT AXLE HUB RUNOUT 
    1. Using a dial indicator, check for runout on the surface of the front axle hub sub-assembly outside the front axle hub bolts.
      GTY1240842Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Maximum Runout

      0.05 mm (0.00196 in.)

      NOTE:
      • Ensure that the dial indicator is set perpendicular to the measurement surface.
      • Make sure to set the tip of the dial indicator towards the outside of the front axle hub bolts.
      • Keep the magnet of the dial indicator away from the front speed sensor.

      HINT: 

      If the runout exceeds the maximum, replace the front axle hub sub-assembly.

  7. INSTALL FRONT DISC LH 
  8. CONNECT DISC BRAKE CYLINDER ASSEMBLY 

    See step  13

  9. INSTALL FRONT WHEEL 

    Refer to INSTALLATION [10/2023 - ]