Hofmann monty 1620 Manual Del Operador página 40

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40
monty 1620 - 1625
5.3-1
5.3-2
5.3-3
Beading Tubeless: tires
Perform the beading with the wheel blocked on the
tire changer.
· Ensure that both the beads and the inside of the
rim are thoroughly lubricated.
· Screw the valve insert.
· Connect the compressed air hose to the valve
(2,Figure 5.3-2).
· Operate the compressed air to ensure the beads
are seated.
STOP THE COMPRESSED AIR AS SOON AS THE
BEADS GRIP THE RIM WELL.
· Place the wheel in a type approved cage to fi nish
infl ating and completely settle the beads in their
seats on the rim.
Beading tubeless tires is sometimes diffi cult because
the beads may be very close together (e.g. owing to
incorrect stacking) and so fail to seal against the rim
properly.In this event it may be helpful to place the
wheel on the fl oor in a vertical position and 'bounce' it
while introducing air with the pedal control or with the
infl ator gauge (Figura 5.3-1).
Beading with the GP device:
The machine can be provided with a GP device,
necessary for bead seating of tubeless tires.
(Figure 5.3-2)
· If possible lock the wheel from inside. Outside
locking reduces effi ciency of the bead seater.
· Connect the compressed air hose to the valve (2).
· Lift the tire with both hands so that upper bead is
sealed to the rim edge (Fig. 5.3-2).
· Press the infl ation pedal down swiftly. The top bead
is already sealed by the lifting motion. The air from
the bead seater jets will rebound into the bottom
sidewall driving it into place and creating a seal.
STOP THE COMPRESSED AIR AS SOON AS THE
BEADS GRIP THE RIM WELL.
· Place the wheel in a type approved cage to fi nish
infl ating and completely settle the beads in their seats
on the rim.
(Figure 5.3-3)
WARNING: WHEN OPERATING THE BEADING
DEVICE IT IS COMPULSORY TO WEAR EAR
DEFENDERS TO PROTECTAGAINST NOISE
AND SAFETY GOGGLES TO PREVENT ANY
C O N TA M I N AT I O N B Y D U S T A N D O T H E R
IMPURITIES BLOWN BY THE AIR JETS.
Operator's Manual