COATS Kit 8560761701 Robo-Arm LR - Manual (Page 8)

8 • Tire Changers
15. Demount lower bead. Pay close attention to sen-
sor/transmitter location, and position it just before the
demount tool when starting the lower bead demount
procedure (Figure 14).
Figure 14 - Sensor/Transmitter Location
16. Flip down the helper foot hook (figure 15).
Figure 15 - Using Helper Foot Hook
17. Position the helper foot hook to lift and hold the
tire at an angle so the lower bead is resting in the drop
center directly across from the demount head, and is
loose below the demount head. Insert bead lifting tool
down over demount tool and below the lower bead. Lift
the lower bead over the demount tool (Figure 13). Hold
the lifting tool in place. Depress the table top rotation
pedal momentarily to jog the wheel short distances to
complete the demounting process.
Figure 16 - Lower Bead in Drop Center
Mounting
1. Lubricate both tire beads liberally. Performance
tires will require more lubrication than standard pas-
senger car tires.
2. Mount the lower bead. In most cases, the lower
bead will mount easily.
AE: Mounting the top bead can be very difficult
when mounting new tires on performance and custom
wheels. Proceed slowly and cautiously.
3. Position the valve stem 90 degrees clockwise in
front of the mount/demount tool for top bead mount-
ing. Lift the bead over the rear of the mounting head.
Use the helper tool to hold the bead in the drop center
(Figure 17). Rotate the wheel in short steps and apply
extra lubricant to mount upper bead.
Figure 17 - Mount Upper Bead, Use Helper
4. On extremely tight tire and wheel combinations, it
may be necessary to use the bottom of the helper foot
to flip the tire bead over the rim flange (Figure 18)
Figure 18 - Helper Foot to Flip Bead Over Rim Flange
Sensor
Valve
Flip Hook
Down