COATS CDH-9551 Electric-Hydraulic Tire Changer - Manual (Page 19)

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16) Turn the spindle until the valve is at the bottom (6 o’clock).
17) Inflate the inner tube a little (until it has no folds) so as not to pinch it while mounting the second bead.
18) Attach an extension to the valve and then remove the locking ring.
The purpose of this operation is to allow the valve to be loose so that it is not ripped out during second bead mounting.
19) Lift the tire assembly again and attach the g-clamp outside the second bead about 8 inches (20 cm) to the right of the valve (See
Fig. U).
20) Turn the spindle clockwise until the g-clamp is at 9 o’clock.
21) Move the tool carrier arm (14, Fig. D) to its working position.
22) Bring 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.
23) Turn the spindle a little clockwise until you can insert the bead guide lever into its seating on the hook tool (See Fig. V). This lever can
be supplied on demand.
24) Pull back on this lever which will guide the bead into drop center. Continue to turn the spindle until the tire is completely mounted
on the rim.
25) Remove the g-clamp. Remove the hook tool by turning the spindle counterclockwise and moving it towards the outside.
26) Tip the tool carrier arm to its non-working position.
27) Position the ramp directly under the tire assembly and lower the spindle until the tire rests on the ramp.
DANGER! POTENTIALLY HAZARDOUS OPERATION!
Do it manually only if you are certain you can keep the tire assembly balanced. For large and heavy tires an adequate
lifting device must be used
28) When the tire is resting on the ramp, check to make sure the valve is perfectly centered with its hole. If it is not, turn the spindle slightly
to adjust the position. Fix the valve with its locking ring and remove the extension.
29) Close the arms of the spindle completely. Support the tire to prevent it falling off.
Take the mobile control unit to work position B.
Take the mobile control unit to work position C.
U V