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Tire And Wheel System: Inspection

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  1. INSPECT TIRE 
    1. Check the tires for wear and proper inflation pressure.

      Standard cold tire inflation pressure 

      STANDARD COLD TIRE INFLATION PRESSURE SPECIFICATION

      Tire Size Front Pressure Rear Pressure
      235/50R18 97W For driving under 160 km/h (100 mph) 240 kPa (2.4 kgf/cm2 , 35 psi) 240 kPa (2.4 kgf/cm2 , 35 psi)
      For driving at 160 km/h (100 mph) or over 300 kPa (3.0 kgf/cm2 , 44 psi) 300 kPa (3.0 kgf/cm2 , 44 psi)
      P235/50R18 97V For driving under 160 km/h (100 mph) 230 kPa (2.3 kgf/cm2 , 33 psi) 230 kPa (2 3 kgf/cm2 , 33 psi)
      For driving at 160 km/h (100 mph) or over 270 kPa (2.7 kgf/cm2 , 39 psi) 270 kPa (2.7 kgf/cm2 , 39 psi)
      245/45R19 98Y For driving under 160 km/h (100 mph) 230 kPa (2.3 kgf/cm2 , 33 psi) 240 kPa (2.4 kgf/cm2 , 35 psi)
      For driving at 160 km/h (100 mph) or over 300 kPa (3.0 kgf/cm2 , 44 psi) 300 kPa (3.0 kgf/cm2 , 44 psi)
      P245/45R19 98V For driving under 160 km/h (100 mph) 230 kPa (2.3 kgf/cm2 , 33 psi) 240 kPa (2.4 kgf/cm2 , 35 psi)
      For driving at 160 km/h (100 mph) or over 270 kPa (2.7 kgf/cm2 , 39 psi) 280 kPa (2.8 kgf/cm2 , 41 psi)
    2. Using a dial indicator, check the runout of the tires.

      Standard tire runout: 

      1.0 mm (0.0394 in.) or less 

      Fig 1: Checking Runout Of Tires
      G05781853Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. ROTATE TIRE 
    1. Rotate the tires

      HINT:

      When including the spare tire in the rotation, follow the arrows in the illustration.

      Fig 2: Tire Rotation Diagram
      G05781854Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. INSPECT WHEEL BALANCE 
    1. Check and adjust the off-the-car balance.
      Fig 3: Inspecting Wheel Balance
      G05781855Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. If necessary, check and adjust the on-the-car balance using a LEXUS genuine sticking type balance weight.

      Standard imbalance after adjustment: 

      8.0 g (0.0181b.) or less 

      Fig 4: Identifying Balance Weights Position - Example
      G05781856Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:
      • Using a cleaning detergent, remove dirt, oil and water from the approximately 25 mm (0.984 in.) long areas shown in the illustration.
      • Do not touch the adhesive part of the balance weight.
      • Adhere the balance weight to the areas shown in the illustration.
      • Push the balance weight securely with your fingers to attach it.
      • Do not reuse the balance weight.
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