COATS RC-50M Rim Clamp Tire Changer - Manual (Page 10)

6 • Important: Always read and follow the operating instructions.
Mounting
This information must be read and followed carefully
to prevent accidents and injuries during mounting.
Check tire and wheel carefully before
mounting. Make sure the tire bead diameter
and wheel diameter match exactly. Consult
the Rubber Manufacturer's Association for
approved rim widths for tire sizes. Mis-
matched tires and wheels explode.
Never mount a tire and wheel handed to
you by anyone without checking both tire
and wheel for damage and compatibility.
The problem of mis-matched tires/wheels is
preventable. Be extra cautious of persons
without knowledge of tire service. Keep
bystanders out of service area; there is a
risk that could result in injury.
Never mount a damaged tire. Never mount
a tire on a rusty or damaged wheel.
Damaged tires and/or wheels may explode.
If you damage the tire bead during mount-
ing, STOP!, remove the tire and mark it as
damaged. Do not mount a damaged tire.
1. Inspect the wheel closely for damage. Clean the
wheel and remove any light corrosion or rubber residue
(figure 14). Do not attempt to service heavily corroded
wheels.
Figure 14 - Inspect and Clean the Wheel
2. Inspect tire for damage, paying close attention to
the beads. Verify size match between tire and wheel.
3. Lubricate tire beads liberally with tire manufac-
turer approved lubricant (figure 15).
Figure 15 - Lubricate Beads
4. Place tire over wheel and move swing arm into
position. Position the tire so that the lower bead is
above the rear extension of the mount/demount head
and below the front knob (figure 16).
Figure 16 - Position Tire Against Mount/Demount Head
5. Turn the table top and rotate the wheel to mount
the lower bead. Use the drop center of the wheel to
reduce the tensional force on the bead by pressing
down on the tire directly across from the mount head.
Rotate table top until lower bead is fully mounted.
6. For top bead, rotate table top until the valve stem
is 90 degrees forward of the mount head. Lift the
upper bead up and over the rear of the mount head.
With your left hand press down on the tire between
the mount head and the valve stem to hold the tire in
the drop center. Rotate the tire until the bead is
mounted. Continue to press down on the tire during
the remaining mounting process.
Do not force the tire onto the rim. Bead
damage could result making the tire unsafe
and/or creating the risk of injury.
Note: If table top rotation begins to jam, reverse the
table top momentarily until the tire bead is again loose
on the wheel. Reposition the mount head, make sure
the bead is correctly positioned in the drop center of
the wheel; then attempt mounting again.
Note: For low profile or stiff sidewall tires, it may be
advantageous to use the bead lifting tool to initially
hold the upper bead down in the drop center
WARNING
CAUTION
WARNING
WARNING
WARNING
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