Demounting Tubeless Tires - John Bean EHP System III-E Manual Del Operador

5.1-1
5.1-2
5.1-3

5.1 Demounting tubeless tires

• Remove all wheel-weights from the rim. Remove the
valve stem or core and defl ate the tire (Fig. 5.1-1).
• Break outer bead starting from opposite the valve
position. lubricate the bead and rim with a tire lube only.
Break inner bead. Do not hold the foot pedal depressed
longer than necessary since this could damage the
bead. Liberally lubricate bead and rim (Fig. 5.1-2).
WARNING!
ON CARS WITH RUN FLAT TYRES WITH THE
OPTIONAL LOW PRESSURE SENSOR INSTALLED,
BREAK THE BEAD AT 90 DEGREES OFFSET FROM
THE VALVE STEM. DAMAGE TO THE WHEEL WILL
RESULT IF THE BEAD IS BROKEN AT ANY OTHER
POINT ON THE RIM.
Locking Rims
• Set the rim clamps to the proper position: retract
clamps to clamp the wheel from the inside and expand
clamps to clamp from the outside. When clamping
small wheels (14" or smaller) from the outside, set the
clamps at diameter nearly equal to the rim diameter,
before placing the wheel on the clamps. This will avoid
the risk of pinching the tire.
WARNING!
TO MINIMIZE THE RISK OF SCRATCHING ALLOY
RIMS, THESE SHOULD BE CLAMPED FROM THE
OUTSIDE.
• Liberally lubricate bead and rim.
• Place the wheel WITH DROP CENTER UPWARDS
(Fig. 5.1-3) on the turntable, and clamp in position.
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