COATS CDH-9043 Electric-Hydraulic Tire Changer User Manual

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13.3

TUBE TIRES

BEAD LOOSENING

WARNING: release inflation tire so that the valve, coming inside the rim, is not an obstacle during bead loosening.

Follow all the steps described previously for bead loosening tubeless tires.

With tube tires, however, stop disk movement as soon as the bead has loosened to avoid damaging the tube inflation valve.

DEMOUNTING

Take the mobile control unit to work position C.

1) Tip the tool carrier arm (14, Fig. D) to its non-working position. Move it to the outside plane of the wheel and rehook it in this position.

2) Rotate the wheel and at the same time move the hook tool (18, Fig. D) forward inserting it between rim and bead until it is anchored

to the tool.

3) Move the rim 1,5 - 2 inches (4-5 cm) from the tool taking care that it does not unhook from the bead.

4) Move the hook tool towards the outside until the red reference dot is by the outside edge of the rim.

5) Insert lever (see Fig. P) between rim and bead at the right of the tool.

6) Press down on the lever and lower the wheel to bring the edge of the rim about (5 mm) from the hooked tool.

7) Turn the wheel counterclockwise pressing down on lever until the bead is completely off.

8) Move the tool carrier arm to its non-working position. Lower the spindle until the tire is pressed down against the platform . As the plat-

form is moved slightly towards the outside, the tire will open a little and thus create enough space to remove the inner tube.

9) Remove the inner tube and lift the wheel back up.

Take the mobile control unit to work position B.