COATS 5035 A/E Tire Changer - Manual (Page 5)

OPERATING INSTRUCTIONS
The unit must be properly operated and properly
maintained to help avoid accidents that could
damage the unit and injure the operator or
bystanders. This section of the Operating
Instructions manual review basic operations and use
of controls. 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
This machine may
operate differently
from machines you
have previously operated. Practice with a regular
steel wheel and tire combination to familiarize
yourself with the machine's operation and
function.
Remember to remove all weights from both sides of
the wheel. Weights left on back side of wheel may
cause the wheel to be clamped unlevel. This may
result in the combination mount/demount head
contacting the rim causing scratches. On alloy
wheels, always rotate the wheel one turn after
setting the head to insure proper wheel chucking.
NOTE: Always review nicks and scratches with
owners of expensive wheel and tire combinations
prior to servicing.
IMPORTANT: Review the performance wheel
section of this manual prior to servicing performance
tire/wheel combinations.
1. Deflate tire completely by removing the valve
core from the valve stem (Figure 1).
Figure 1 - Remove Valve Core to Deflate Tire
NOTE: Loosening the beads on a partially or
fully inflated tire is unsafe and causes excess
movement and friction against the bumper pads
and excessive wear on pivots. Deflate the tire
completely to prolong the life of your machine.
NOTE: Always loosen the bead on the narrow
side of the wheel's drop center first. See Figure
4 for more information on the drop center.
REMEMBER: The clamps on the table top may
extend beyond the table top itself. To avoid
damaging the clamps, move them to their full
inward position before positioning a tire for bead
loosening.
NOTE: Use extra care in positioning the bead
loosener shoe on larger wheels/tires, and on
alloy wheels. Make sure the shoe rests next to
but not on the rim, and not on the tire sidewall.
2. Pull the bead loosener shoe away from the
machine and roll wheel into position. The valve
stem should be in the 3 o'clock position. Position
the bead loosener shoe against the tire next to,
but not on, the rim. Depress the bead loosener
foot pedal to actuate the shoe and loosen the
bead. It may be necessary to loosen the bead in
multiple locations around the tire (Figure 2).
Figure 2 - Position Tire and Bead Loosener Shoe
3. Turn wheel around and repeat loosening
procedure on the other side of the wheel. This
should be the long side of the drop center (see
Figure 4).
TIP: It will be easier to clamp the wheel to the
table top if the lower bead is loosened last.
4. Apply tire manufacturer's approved rubber
lubricant liberally to entire circumference of both
tire beads after loosening.
Figure 3 - Apply Rubber Lubricant to Tire Beads
5035 A/E Rim Clamp Tire Changer • 3
CAUTION
!