COATS 50xx Series Tire Changer - Manual (Page 13)

Figure 28 - Insert Bead Lifting Tool (Optional Drop Center
Tools Shown)
9. Hold lifting tool in place and depress the table
top control pedal momentarily to jog the wheel a
short distance. Check the wheel and tire to
verify that operation is not causing damage.
Figure 29 - Pull Lifting Tool Down and Rotate Wheel
10. The lifting tool can usually be removed after
jogging the wheel a short distance. Continue to
jog the wheel to allow tire to flex where it
crosses the rim edge. Continue short rotations
until top bead is completely demounted.
Figure 30 - Remove Drop Center Tools Before Tool Head
11. Demount lower bead. In most cases when
demounting performance tires, the lower bead
will be less difficult. Use help to lift, position, and
hold tire. Pay close attention to sensor/
transmitter location, and position it directly
below the demount tool when starting the lower
bead demount procedure (Figure 31).
Figure 31 - Use Help on Lower Bead, Watch Sensor
Performance Tires and Wheels - Mounting
1.
Lubricate both tire beads liberally. Performance
tires will require more lubrication than standard
passenger car tires.
2. Mount the lower bead. In most cases, the lower
bead will mount easily.
Figure 32 - Mount Upper Bead, Use Lifting Tool
3. Position the valve stem directly across from the
mount/demount tool for top bead mounting. Lift
the top bead over the rear of the mount head.
Use the lifting tool to help push and keep the top
bead in the drop center during mounting, or use
an optional drop center tool to help hold the
bead in the drop center (Figures 32 and 33).
Rotate the wheel in short steps and apply extra
lubricant to mount upper bead.
AG: Mounting the top bead can be very difficult
when mounting new tires on performance and
custom wheels. Proceed slowly and cautiously.
Figure 33 - Mounting Top Bead
COATS 50xx Series Rim Clamp Tire Changers • 11
Sensor