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WHEEL UNIT REMOVAL/INSTALLATION [(E)]

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Replacement part

1.  Remove in the order indicated in the table.

2.  Install in the reverse order of removal.

3.  Install the valve cap, fill the tire with air.

Caution

•  A direct TPMS wheel unit has an exclusive valve cap. Always install the direct TPMS exclusive valve cap.

•  The wheel unit air pressure stem is made of aluminum and can be damaged. Do not tilt or use excessive side force when checking the air pressure or filling a tire with air. Some tire pressure gauges and air filling nozzles have extended tips, which could bend or break the air pressure stem of the wheel unit due to the added force they can apply.

•  Do not use a tire pressure gauge with an extended tip or air injector nozzle, because it will apply excessive force to the air pressure stem of the wheel unit.

4.  When replacing a wheel unit (s), register the new wheel unit ID (s). (See WHEEL UNIT ID REGISTRATION.)

Note

•  If the wheel unit is replaced with a new one, registration of the ID is necessary.

•  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 M-MDS.

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1	Valve cap
2	Tire (See Tire Removal Note.) (See Tire Installation Note.)
3	Valve nut
4	Wheel unit component (See Wheel Unit Component Installation Note.)

Tire Removal Note

1.  Set the bead breaker at the position laterally opposed to the valve.

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2.  Break the bead loose.

Caution

•  Do not break the bead loose within the range of 300 mm {11.8 in} on each side of the valve. Otherwise, the wheel unit could be damaged.

3.  Break the bead loose on the other side of the wheel.

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Caution

•  Set the bead breaker at the position laterally opposed to the valve.

•  Do not break the bead loose within the range of 300 mm {11.8 in} on each side of the valve. Otherwise, the wheel unit could be damaged.

4.  Insert the tire lever at the point 50—150 mm {2.0—5.9 in} from the wheel unit in the direction that the tire changer turntable rotates.

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5.  Remove the bead from the wheel.

Note

•  Using the tire lever as a support will aid in preventing the tire changer arm from deviating from the point at which the bead is first broken.

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6.  For the other side, insert the tire lever at the point of 50—150 mm {2.0—5.9 in} from the wheel unit in the direction that the tire changer turntable rotates, and remove the bead from the wheel.

Tire Installation Note

1.  Set the tire at point A (200 mm {7.87 in} away from the valve hole), and install the tire.

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2.  Set the tire at point A (200 mm {7.87 in} away from the valve hole).

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Note

•  Using the tire lever as a support will aid in preventing the tire from deviating from point A.

3.  Install the tire.

Wheel Unit Component Installation Note

1.  Insert the valve into the wheel unit in the order shown in the figure.

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2.  Verify that the valve is installed into the wheel unit completely as shown in the figure.

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3.  Insert the wheel unit valve into the valve hole so that the polyurethane foam side faces the wheel.

4.  Temporarily tighten the valve nut by hand.

5.  Completely tighten the valve nut using a torque wrench.

Caution

•  Do not retighten the valve nut after it has been completely tightened.

Note

•  Hold the end of the wheel unit (points A and B) with your thumb and middle fingers so that the wheel unit does not rotate, and then hold the valve (point C) with your index finger so that the valve does not detach from the wheel unit.

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6.  Verify that the wheel unit component is correctly installed.

•  Both ends or one end of the wheel unit contacts the wheel as shown in the figure.

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•  The wheel unit does not exceed the rim height as shown in the figure.

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