COATS CDH-9551 Electric-Hydraulic Tire Changer - Manual (Page 18)

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4) Put the tire on the ramp and lower the spindle (make sure the g-clamp is at the high point) to hook the first bead on the g-clamp.
Take the mobile control unit to work position B.
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5) Lift the rim with the tire hooked to it and turn it counterclockwise about 6-8 inches (15-20 cm). The tyre will be positioned inclined
across the rim.
6) Move the tool carrier arm to its non-working position. Move it to the inside face of the tire and rehook it in this position.
7) Check to make sure the hook tool is positioned facing the bead. If not, press lever (9, Fig. C) and turn it 180°.
8) Move the tool forward until the red reference dot is lined up with the outside edge of the rim and about 1/4 inch (5 mm) from it (See
Fig. S).
9) Move to the outside of the tire assembly and check the exact position of the hook visually and adjust it as needed. Then turn the
spindle clockwise until the g-clamp is at the bottom (6 o’clock). The first bead will be on the rim.
Remove the g-clamp.
Take the mobile control unit to work position D.
10) Remove the tool from the tire.
11) Move the tool carrier arm to its non-working position. Move it to the outside face of the tire.
12) Turn the tool 180° with lever (19, Fig. D).
13) Turn the spindle until the valve hole is at the bottom (6 o’clock).
14) Move the ramp (4 Fig. A) under the tire assembly and lower the spindle until the tire is pressed down against the platform . As the
platform is moved slightly towards the outside, the tire will open a little and thus create enough space to insert the inner tube.
NB: The valve hole may be asymmetrical to the centre of the rim. In this case position and insert the inner tube as shown in Fig. T.
Insert the valve through the hole and fix it with its locking ring.
15) Place the inner tube in the drop center of the rim (NB: to facilitate this, turn the spindle clockwise).
Take the mobile control unit to work position D.
Take the mobile control unit to work position C.
Take the mobile control unit to work position B.