20 • Important: Always read and follow operating instructions.
Operating Instructions (using
Robo-Assist™ Helper Arm)
Unit must be properly operated and properly main-
tained to help avoid accidents that could damage
the unit and injure the operator or bystanders. These
instructions should be reviewed with all employees
before they are allowed to work with the machine.
Keep these instructions near the machine for easy
reference.
Bead Loosening and Demounting (using
Robo-Assist™ Helper Arm)
1. Follow procedures described in steps 1 through 9
on pages 8, 9, and 10 - Bead Loosening and Demount-
ing section.
2. Depress the tire sidewall downward with the aid
of the Robo-Assist™ helper arm foot providing clear-
ance for the Duckhead
®
mount/demount tool to be
positioned (figure 25). Move swing arm into place.
Increase the horizontal distance between the mount/
demount tool and the wheel an additional 1/16 to 1/8
inch with the adjustment knob. Remove helper arm.
Figure 25 – Helper Arm Foot Depressing Sidewall of Tire
3. Lubricate upper bead liberally (Figure 26).
Figure 26 - Lubricate Upper Bead
4. Locate the valve stem just before the mount/
demount tool before proceeding (Figure 27).
Figure 27 - Position Valve Stem Under Mount/Demount Tool
5. Place the Robo-Assist™ helper arm foot oppo-
site the mount/demount tool and push the bead into
drop center. Insert bead lifting tool between knob on
mount/demount tool and tire bead (Figure 28).
Figure 28 - Insert Bead Lifting Tool
6. Rotate lifting tool down over wheel to lift bead
up and over the knob and at the same time remove
helper arm foot.
7. Hold lifting tool in place, depress the table top
rotation pedal momentarily to jog the wheel a short
distance. Check the wheel and tire to verify that
operation is not causing damage. The lifting tool
can usually be removed after jogging the wheel a
short distance (Figure 29). Continue to jog the wheel
to allow the tire sidewall to flex as it crosses the rim
edge. Continue short rotations until top bead is com-
pletely demounted.
Valve Stem
Demount Head
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