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Home >> Toyota >> 2019 >> Mirai >> Repair and Diagnosis >> Drivelines & Axles >> Wheel Hubs >> Axle And Differential - Service Information >> Front Axle Hub Bolt >> Replacement [11/2018 - ] >> Procedure

Replacement [11/2018 - ]: Procedure

  1. PRECAUTION 
    NOTE:

    After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notice before proceeding with work.

    Refer to INITIALIZATION [11/2018 - ]

  2. DISABLE BRAKE CONTROL 

    Refer to PROCEDURE - Step 3

  3. REMOVE FRONT WHEEL 

    Refer to PROCEDURE - Step 1

  4. SEPARATE FRONT DISC BRAKE CALIPER ASSEMBLY 
    1. Remove the 2 bolts and separate the front disc brake caliper assembly.
      NOTE:

      Use wire or an equivalent tool to keep the front disc brake caliper assembly from hanging by the front flexible hose.

      GTY583962Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. REMOVE FRONT DISC 

    Refer to PROCEDURE - Step 16

  6. REMOVE FRONT AXLE HUB BOLT 
    1. Temporarily install 2 service nuts to the front axle hub bolts as shown in the illustration.
      GTY551062Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Service Nut
      *b Hold
      *c Turn

      Recommended Service Nut

      Thread diameter: 12.0 mm (0.472 in.)

      Thread pitch: 1.5 mm (0.0591 in.)

      NOTE:

      Install the service nuts to prevent damage to the front axle hub bolts.

    2. Using SST and a screwdriver or an equivalent tool to hold the front axle hub sub-assembly, remove the front axle hub bolt.
      • SST: 09611-12010 
      NOTE:

      Do not damage the threads of the front axle hub bolts.

  7. INSTALL FRONT AXLE HUB BOLT 
    1. Temporarily install a new front axle hub bolt to the front axle hub sub-assembly.
    2. Install a washer and service nut to the front axle hub bolt as shown in the illustration.

      Recommended Service Nut

      Thread diameter: 12.0 mm (0.472 in.)

      Thread pitch: 1.5 mm (0.0591 in.)

      HINT: 

      Recommended washer thickness is 5 mm (0.197 in.) or more.

      GTY557474Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Service Nut
      *b Washer
      *c Hold
      *d Turn
    3. Using a screwdriver or an equivalent tool to hold the front axle hub sub-assembly, install the front axle hub bolt by tightening the service nut.
      NOTE:
      • Install the service nuts to prevent damage to the front axle hub bolts.
      • Do not damage the threads of the front axle hub bolts.
    4. Remove the 3 service nuts and washer from the 3 front axle hub bolts.
  8. INSTALL FRONT DISC 

    Refer to PROCEDURE - Step 1

  9. INSTALL FRONT DISC BRAKE CALIPER ASSEMBLY 
    1. Install the front disc brake caliper assembly to the steering knuckle with the 2 bolts.

      Torque: 106.8 N*m (1089 kgf*cm, 79 ft.*lbf) 

      NOTE:
      • Do not twist the front flexible hose when installing the front disc brake caliper assembly.
      • Make sure that there is no foreign matter on the threads of the bolt.
  10. INSTALL FRONT WHEEL 

    Refer to PROCEDURE - Step 1

  11. CONNECT CABLE TO NEGATIVE AUXILIARY BATTERY TERMINAL 
    1. Connect the cable to the negative (-) auxiliary battery terminal.

      Refer to PROCEDURE - Step 2

    2. Connect the reservoir level switch connector to the brake master cylinder reservoir assembly.
    3. Turn the power switch on (IG).
    4. Depress the brake pedal and release it.
    5. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [06/2015 - ]

  12. INSTALL LUGGAGE TRIM SERVICE HOLE COVER 

    Refer to PROCEDURE - Step 3