Wheels and Tires: Service and Repair

WHEEL UNIT REMOVAL/INSTALLATION





1. Remove in the order indicated in the table.
2. Install in the reverse order of removal.
3. When replacing wheel unit (s), register the new wheel unit ID (s).

Caution:
^ If a repair agent was used, be sure to dispose of the old tire and replace it with a new one. The repair agent is not compatible with tire patches or plugs. After using a repair, agent, the tire must be disposed of and replaced.

Note:
^ If the wheel unit is replaced with a new one, the ID registration must be performed. When the ID registration is finished, the data for the new wheel unit is displayed on the WDS.
^ If a repair agent was used, be sure to recover fluid, dispose of it following local waste disposal regulations. Be sure to replenish the repair agent and place it in the vehicle in the event of a future tire emergency

Valve Core Removal Note
1. Remove the valve core of the wheel unit, and bleed the air from the tire.

Wheel Unit Removal Note
1. Push the tire valve completely into the tire.

Caution:
^ Breaking the tire bead with the wheel unit installed normally could damage the unit. Be sure to always push the wheel unit so that it is completely inside the tire to prevent any damage.

2. Position the shoe (bead breaker) of the tire changer 10-20 mm 10.40-0.78 inch) from the outer edge of the wheel, and break both tire beads.
3. Remove the bead from one side of the wheel.
4. Remove the wheel unit.

Grommet Removal Note

Caution:
^ Using metal tools such as a screwdriver during grommet replacement may damage the wheel unit.

Grommet Installation Note

Caution:
^ Using metal tools such as a screwdriver during grommet replacement may damage the wheel unit.





1. Install the grommet to the position indicated in the figure.

Wheel Unit Installation Note





1. Insert the wheel unit valve into the valve hole so that the polyurethane foam side faces the rim.
2. Tighten the valve nut slowly to the specified torque.
Tightening torque 7.0 - 8.0 Nm (72 - 82 kgf-cm, 62 - 70 inch lbs.)





3. Set the tire changer so that it is 450 away (point A) from the valve hole.

Caution:
^ Do not position the tire changer near the tire valve to avoid any damage to the wheel unit.

4. Fill the tire with air and verify the valve nut tightening torque.





Caution:
^ To prevent damage to the valve area of the wheel unit or pressure loss during air pressure adjustment, use a type B tool with a round end as shown in the figure, not a type A tool.