COATS APX Rim Clamp Tire Changer - Manual (Page 13)

Important: Always read and follow the operating instructions. • 9
Figure 18 - Position Tire Against Duckhead ®
5. Depress tabletop pedal and rotate wheel to
mount lower bead. Use drop center of wheel by forc-
ing down on, tire just ahead of the mounting tool, and
follow as tire rotates (figure 19). Rotate tabletop until
lower bead is mounted.
Figure 19 - Mounting Lower Bead
6. For top bead installation, attach the Duckhead
Roller™ to the Duckhead, then rotate tabletop until the
valve stem on wheel is 90 degrees ahead of the
Duckhead (at 3 o'clock position), see figure 20.
Figure 20 - Position Valve Stem 90º Ahead of Duckhead
7. Using horizontal power roller, press down on tire
sidewall between Duckhead and valve stem to hold
tire in rim drop center. The bead should also be under
right side of the knob on Duckhead (figure 21A).
Figure 21A - Use Power Roller To Hold Tire In Rim Drop
Center
8. Use RoboArm™ to push down on tire opposite
Duckhead to allow bead to utilize drop center area of rim.
Fig 21B - Use RoboArm To Hold Tire In Rim Drop Center
9. Depress tabletop pedal to rotate the wheel. Use
RoboRoller (if equipped) to press down on tire sidewall
between RoboArm and horizontal power roller to hold
tire in rim drop center.
Fig 22 - Use RoboRoller (if equipped) To Hold Tire In Rim Drop
Center
10. Depress tabletop pedal and rotate tire until bead
is mounted. Be careful to assure bead stays in the rim
drop center in the area ahead of Duckhead.
P. If tabletop rotation stalls, reverse tabletop
momentarily until tire bead is again loose on
the wheel. Reposition tire on Duckhead, make
sure bead is correctly positioned in drop center
of the wheel; then attempt mounting again.
R. For tube type tires, mount lower bead first,
move tower back, install tube, and then mount
upper bead.
90º