COATS CDH-4730 Electric-Hydraulic Tire Changer - Manual (Page 19)

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10) Move the tool carrier arm to the inside face of the tire, turn the hook-tool 180° and lower the arm to its working position. Insert it be-
tween rim and bead and move it until the bead is by the front edge of the rim (best to do this with the tire assembly turning).
11) Move the rim about 1,5-2 inches (4-5 cm) from the tool, making sure the hook does not detach from the rim.
12) Move the hook-tool so that its red reference dot is about 1,2 inches (3 cm) inside the rim.
13) Insert lever between rim and bead at the right of the tool (Fig.33)
14) Press down the lever and lower the tire to bring the edge of the rim about 1/4” (5 mm). from the hook-tool.
Turn the tire counterclockwise, pressing down on lever until the tire comes completely off the rim.
1) If the rim has been removed from the spindle, lock it back as described in par. “RIM CLAMPING”
2) Lubricate both beads and rim with tire manufacturer recomanded lubricant.
3) Attach the g-clamp to the outside edge of the rim at the highest point
(Fig. 34).
CAUTION! Make sure the g-clamp is firmly attached to the rim.
4) Put the tire onto the ramp and lower the spindle (make sure the g-clamp is at the highest point) to hook the first bead to the g-
clamp.
7.._Tire mounting with DOUBLE TOOL. (optional)
Fig.33
Fig.34
5) Lift the rim with the tire hooked to it and turn it counterclockwise about 6-8 inches (15-20 cm). The tire will be positionedinclined 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) Make sure that the hook-tool is positioned facing the tire bead. If not, turn it of 180° (by releasing the locking pin, 15, fig. 32).
8) Move the tool forward until the red reference dot is lined up with the outside face of the rim at about 1/4” (5 mm) from it (Fig. 35).
9) Move to the outside of the tire and check the exact position of the hook tool visually and adjust it as needed, if necessary. Then turn
the spindle clockwise until the clamp is at the bottom (6 o’clock). First bead will be mounted on the rim.
Remove the g-clamp.
10) Remove the tool from the tyre.
11) Move the tool carrier arm to its non-working position. Move it to the outside of the tire.
12) Turn the tool 180° (by releasing the loking pin, 15, fig. 32.)
DANGER!
When the beads come off the rim, the tire will fall. Check to make sure there are no bystanders in the
work area.