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Bead Loosening Tough, Low Profile Tires
Bead Loosening "AH" Wheels
32 • • • • Advanced Procedures
Fully lubricate the lower bead and rim by inserting brush with lubricant into rim, just
behind the roller.
Retract lower roller.
Push the upper bead of the tire off the rim bead seat while rotating tire.
Lubricate upper bead, rim bead seat, rim balcony, and drop center.
Retract upper roller.
Swing the bead roller assembly away to the resting position.
Swing the bead roller assembly in toward the column to the working position (against
the stop).
Set rim diameter.
WARNING:
Never place hands near the rollers while applying force
and rotating wheel.
Bring the upper bead roller down until it contacts the tire at the edge of the rim.
Lock upper roller into the side of the tire by pushing the upper roller down while
rotating wheel counterclockwise so it is approximately 1/4 inch below rim edge.
Bring the lower bead roller up until it contacts the tire.
Lock the lower roller into the side of the tire.
Continue to rotate wheel during the entire loosening procedure.
CAUTION:
Never rotate the wheel clockwise while bead loosening.
Never lock the bead roller assembly with the lock knob while
bead loosening.
Push the lower bead of the tire off the rim bead seat while rotating tire.
Fully lubricate the lower bead and rim by inserting brush with lubricant into rim, just
behind the roller.
Retract lower roller.
Push the upper bead of the tire off the rim bead seat while rotating tire.
Lubricate upper bead, rim bead seat, rim balcony, and drop center.
Retract upper roller.
Swing the bead roller assembly away to the resting position.
(e.g. BMW M3, M5, some Porsche, Range Rover, Lancia, etc.)
"AH" wheels may be identified by looking on the rim for an "AH" code cast in the rim
size designation (e.g. 71/2J X17AH2.).
TC33 Series Tire Changer Operation Instructions
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