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Home >> Toyota >> 2021 >> Mirai Limited >> Repair and Diagnosis >> Suspension >> Rear Suspension >> Suspension System (Rear) - Service Information >> Rear Upper Arm >> Installation [11/2020 - ] >> Procedure

Installation [11/2020 - ]: Procedure

  1. TEMPORARILY TIGHTEN REAR UPPER CONTROL ARM ASSEMBLY LH 
    1. GTY979187Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt Nut
      1. Insert the bolt from the front of the vehicle. Then temporarily tighten the rear upper control arm assembly LH with the nut and washer.
      2. Temporarily tighten the rear upper control arm assembly LH to the rear axle carrier sub-assembly LH with a new nut.
  2. INSTALL REAR SHOCK ABSORBER ASSEMBLY LH 

    Refer to INSTALLATION [11/2020 - ] 

  3. TEMPORARILY TIGHTEN REAR NO. 1 SUSPENSION ARM ASSEMBLY LH 
    1. GTY979187Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt Nut
      1. Insert the bolt from the back of the vehicle. Then temporarily tighten the rear No. 1 suspension arm assembly LH with the nut and washer.
      2. Temporarily tighten the rear No. 1 suspension arm assembly LH to the rear axle carrier sub-assembly LH with a new nut.
  4. STABILIZE SUSPENSION 
    GTY993405Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    		 See step  6
  5. FULLY TIGHTEN REAR UPPER CONTROL ARM ASSEMBLY LH 
    1. GTY978877Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Torque Wrench Fulcrum Length - -
      1. Using a ball joint lock nut wrench, fully tighten the rear upper control arm assembly LH with the nut.

        Specified tightening torque 

        Torque: 133 N.m (1356 kgf/cm, 98 ft.lbf) 

        HINT: 

        • Calculate the torque wrench reading when changing the fulcrum length of the torque wrench.

          Refer to PRECAUTION [11/2020 - ]

        • When using a ball joint lock nut wrench (fulcrum length of 150 mm (5.906 in.)) + torque wrench (fulcrum length of 400 mm (15.748 in.)): 96.7 N.m (986 kgf/cm, 71 ft.lbf)
      2. Fully tighten the nut.

        Torque: 165 N.m (1683 kgf/cm, 122 ft.lbf) 

  6. FULLY TIGHTEN REAR NO. 1 SUSPENSION ARM ASSEMBLY LH 
    1. GTY980255Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Torque Wrench Fulcrum Length - -
      1. Using a ball joint lock nut wrench, fully tighten the rear upper control arm assembly LH with the nut.

        Specified tightening torque 

        Torque: 204 N.m (2080 kgf/cm, 150 ft.lbf) 

        HINT: 

        • Calculate the torque wrench reading when changing the fulcrum length of the torque wrench.

          Refer to PRECAUTION [11/2020 - ]

        • When using a ball joint lock nut wrench (fulcrum length of 149.75 mm (5.896 in.)) + torque wrench (fulcrum length of 600 mm (23.622 in.)): 163.3 N.m (1665 kgf/cm, 120 ft.lbf)
      2. Using a ball joint lock nut wrench, fully tighten the nut.

        Specified tightening torque 

        Torque: 160 N.m (1632 kgf/cm, 118 ft.lbf) 

        HINT: 

        • Calculate the torque wrench reading when changing the fulcrum length of the torque wrench.

          Refer to PRECAUTION [11/2020 - ]

        • When using a ball joint lock nut wrench (fulcrum length of 150 mm (5.906 in.)) + torque wrench (fulcrum length of 400 mm (15.748 in.)): 116.4 N.m (1187 kgf/cm, 86 ft.lbf)
  7. INSTALL REAR TIRE LH 

    Refer to INSTALLATION [11/2020 - ]

  8. INSPECT AND ADJUST REAR WHEEL ALIGNMENT 

    Refer to ADJUSTMENT [11/2020 - ]

  9. PERFORM INITIALIZATION 

    Refer to WORK PROCEDURE [11/2020 - 11/2021] , or refer to WORK PROCEDURE [11/2021 - 12/2022] , or refer to WORK PROCEDURE [12/2022 - 12/2023] , or refer to WORK PROCEDURE [12/2023 - ]

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