COATS CDH-6330 Electric-Hydraulic Tire Changer - Manual (Page 13)

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5) Rotate the wheel and at the same time, advance the bead-loosener disk with small forward movements following the profile of the
rim.
6) Continue until the first bead is fully detached.
To facilitate this operation, lubricate the bead and the edge of the rim with tire lubricant whilst the tire assembly is rotating.
CAUTION!
To avoid all risk, lubricate the beads turning the tire assembly CLOCKWISE if you are working on the outside
face and COUNTERCLOCKWISE if working on the inside face.
Remember that the stronger the tire’s adherence to the rim, the slower must be the disk’s penetration.
7) Move the tool carrier arm (14, Fig. F) back from the edge of the rim. Release the hook, raise the arm to its non-working position, shift
it and rehook it in its second work position (Fig. G).
DANGER!
Do not hold your hands on the tool when you bring it back to its work position.
Your hand(s) could be trapped between the tool and the tire assembly.
8) Push the double headed tool lever (15, fig. D) and turn the head 180° until it locks automatically. Then slide the tool-holder arm along
the sliding carriage and lock it in position.
Repeat the operation previously described until the second bead is completely loosen.
During the bead loosenig operation, the hook tool (18, fig.G) can be lowered so that it is out of the way.
9) Take the mobile control unit to work position D.
4) Operating from the mobile control unit, manoeuvre the wheel until the outside of the rim skims the bead-losened disk (fig. F).
DANGER!
The bead breaker disk must NOT be pressed against the rim but against the tire bead.
F G