COATS APX Rim Clamp Tire Changer - Manual (Page 10)

6 • Important: Always read and follow the operating instructions.
9. Take time to experiment with the Duckhead ® lock-
ing system (figure 8).
Figure 8 - Turn Slide Lock to Color As Shown, A Green -
Duckhead Retracks Up, B Yellow - Duckhead Descends
Slowly, and C Red - Duckhead Locks into Position
Make sure the Duckhead is in the retracted
position before moving the tower forward,
to prevent wheel damage.
10. Using the foot pedal, position the tower forward
(figure 9). See figure 8 for Duckhead movement and
locking. With the tower forward, allow tool to descend
on the tire sidewall (figure 9). Then move the tool
toward the rim and actuate the locking button. As the
tool locks into place, the Duckhead will move up and
back about 1/8-inch.
Figure 9 - Position Duckhead
11. Check Duckhead ® positioning. A plastic
Duckhead should not be very close to the rim edge
after it is locked. This clearance will be maintained as
long as the slide locking valve remains locked. The
operator may move the tower back out of the way and
back into place again without needing to reposition the
Duckhead (when clamping a like set of wheels).
H. The tool clearance may change with
machine use and should be inspected often.
Failure to maintain the proper clearance may
result in damage to the wheel rim and/or tire.
K. Normal tabletop rotation for demounting is
clockwise. Depress the tabletop pedal to
rotate this direction. To rotate the tabletop
counterclockwise, lift the pedal up with your
toe.
L. Tabletop rotation can be stopped at any
time by removing your foot from the rotation
pedal.
At times during the mounting and
demounting procedure, the bead lifting tool
may encounter resistance and can be
thrown. Keep one hand firmly on the tool to
avoid possible tool disconnect. Use the
reversing feature to back out of jam-ups. A
thrown tool can cause injury.
12. Apply tire manufacturer's approved rubber lubri-
cant liberally to entire circumference of both beads
after loosening and placing on tabletop. Using the top
bead loosening roller to hold down top bead while
rotating wheel will make lubrication easier (figure 10).
Figure 10 - Apply Rubber Lubricant to the Beads
13. Insert smooth curved end of the bead lifting tool
over the clockwise end of Duckhead and below the
upper bead of the tire. Lift the bead up and over the
knob on the Duckhead (figure 11). Also, note the valve
stem position to the Duckhead, this position reduces
stresses in the bead and allows an easier bead lift.
Use Robo Arm to push down on the tire opposite the
Duckhead to allow bead to utilize the drop center area
of the rim.
A B C