COATS HIT 6000 Truck Tire Changer - Manual (Page 7)

COATS Heavy Duty Tire Changer • 5
Operating Instructions
Tubeless Tire Bead Loosening
Remove the valve core and allow tire to deflate com-
pletely. Remove all weights from wheel.
1. Install rim stop in the appropriate position for tube-
less tires. See illustration.
Position tire between bead loosener shoes: short drop
center side toward shoe with rim stop.
WARNING
Do not place any part of body between bead
loosening shoes while machine is running.
2. Adjust shoes and loosen beads: using handle,
adjust bead loosener shoes on tire sidewalls 1/4-inch
from rim contour. Depress left side of foot pedal to
loosen beads. Depress right side to retract shoes. Note:
for handling several wheels of the same size, an adjust-
able stop is provided for convenience. (See arrow.)
CAUTION
Never allow both bead loosening shoes to
contact rim, since this could cause rim dam-
age.
3. For most tires, one operation of the bead loosener
shoes will loosen both beads. However, some difficult
tires on rusty rims may require an additional operation
to loosen the second bead. Here are three methods
that can help loosen the second bead.
Spin Wheel: Retract shoes completely. Roll wheel
back, spin 180 degrees and loosen opposite side as in
step 2 above.
Roll Wheel: Retract shoes completely. Roll wheel
forward firmly against the rollers and rotate it to a new
position. Reposition and loosen bead as in step 2 above.
Angle Tire: (not recommended for aluminum rims) The
shoe with the rim stop may itself be used as a rim stop.
Angle the wheel so that this shoe contracts the rim and
the opposite shoe contacts the unloosened bead.