COATS CDH-9551 Electric-Hydraulic Tire Changer - Manual (Page 15)

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6) Position the bead loosener disk against the second bead of the tire and turn the spindle until the g-clamp is at the low point (at 6
o’clock).
7) Move the disk away from the tire assembly.
8) Remove the g-clamp and riposition it at 6 o’clock outside the second bead (See Fig. N).
9) Turn the spindle clockwise 90° to bring the g-clamp to 9 o’clock.
10) Move the disk forward until it is about 0.5-1 inches (1-2 cm) inside the edge of the rim. Begin to turn the spindle clockwise checking
to make sure that, with a 90° turn, the second bead begins to slip into the drop center.
11) When the bead is fully mounted, move the tool away from the tire assembly, tip it to its non-working position and remove the g-
clamp.
Take the mobile control unit to work position C.
13) Close the arms of the spindle completely. Support the tire assembly to prevent it falling off.
DANGER!
Potentially hazardous operation!
Do it manually only if you are certain you can keep the tire assembly balanced. For large and heavy tires
14) Move the ramp to remove the tire asembly from the spindle.
15) Remove the tire assembly.
If the tire permits it, the operation described above can be speeded up by mounting both beads at the same time:
- Follow the steps described under points 1,2,3,4 described above but instead of attaching the g-clamp to just the first bead (refer to
point 4) clip it to both.
- Lift the rim with the tire hooked to it and turn it counterclockwise 6-8 inches (15-20 cm) (g-clamp at 10 o’clock).
- Follow the steps described in points 10,11,12,13,14,15 above.
Take the mobile control unit to work position B.
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