Demounting Tubeless Tires - Hofmann monty 3300 Manual De Operador

30
monty 3300 / 3300AIR
5.1-1
1
5.1-1a
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 deflate the tire (Fig. 5.1-1).
NOTE: If the tire is over 13" (340 mm) wide, first set the
bead breaker in the "Wide" position as follow:
1) Pull up and hold pin (1, Fig. 5.1-1a), and pull the
bead breaker assembly in the "Wide" position.
2) Release pin (1, Fig. 5.1-1a) in its hole to lock the
bead breaker in the new position.
• 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. Clamping
the wheels 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 beads and rim.
• Place the wheel WITH DROP CENTER UPWARDS
(Fig. 5.1-3) on the turntable, and clamp in position.
Hold the wheel down while clamping.
Operator's Manual
USA - CANADA