Demounting Tube Type Tires; Mounting Tube Type Tires - Snap-On EEWH312A Instructions D'utilisation

arm is lifted upward by grasping the safety restraint
position knob and lifting upward while simultaneously
depressing the anti-rotation lock arm. Swing safety
arm assembly so the circular retainer is centered over
the rim. Note that air pressure to the infl ation hose will
not fl ow until the arm is centered over the rim.
B. If possible lock the wheel from inside. Outside lock-
ing reduces effi ciency.
C. Connect the infl ation hose to the valve stem.
WHEN OPERATING THE BEAD
SEATER, ALWAYS WEAR SAFETY GLASSES TO
AVOID INJURY TO EYES.
D. Lift the tire with both hands (1) so that the upper
bead is sealed to the rim edge (Fig.22).
Fig.22
E. Press the infl ation pedal down swiftly to the end of
its travel (2) to activate the bead seater jets.
The top bead is already sealed by the lifting motion.
Therefore, the air from the bead seater jets will enter the
tire impacting on the top sidewall and rebound into the
bottom sidewall driving it into place and creating a seal.
NEVER STAND OVER TIRE WHEN
COMPLETE THE SEAT BEADS BY INFLATING.
F. Install valve core, if removed. Complete infl ation to
manufacturers suggested pressure. Never exceed
pressure listed on tire sidewall.
TIRE INFLATION - the tire changer
infl ation hose is limited to 51 psi (3.5 BAR). Never in-
fl ate the tire while on the tire changer with EXTERNAL
SHOP AIR. Only use external shop air infl ation when
a tire is in an approved OSHA infl ation cage.
FAILURE TO FOLLOW THIS PRO-
CEDURE CAN RESULT IN INJURY OR DEATH.
5.0 DEMOUNTING TUBE-TYPE TIRES
A. For breaking the bead operate as described for the
tubeless tires in section 4.1.A to 4.1.F.
In this case the valve is part of the tube.
NOTICE!
BE CAREFUL NOT TO DAMAGE THE TUBE DUR-
ING THE BEAD-BREAKING OPERATION.
VALVE SHOULD BE OPPOSITE TO THE BLADE
OF THE BEAD BREAKER.
B. To demount the fi rst bead, place the valve at 2
o'clock position.
NOTICE!
BE CAREFUL NOT TO CATCH THE TUBE WITH
THE MOUNT/DEMOUNT TOOL, WHEN LIFTING THE
BEAD ON THE MOUNTING FINGER.
After demounting the fi rst bead carefully, remove the
tube before demounting the second bead, as described
in section 4.1.
5.1 MOUNTING TUBE-TYPE TIRES
A. Perform steps described in section 4.2.A.
DO NOT lubricate the tube. Talc can be used to assist
with tire positioning if necessary.
B. Confi rm that the tube is the correct size for the tire
to be mounted. (Fig.23).
Fig.23
C. Infl ate the tube slightly: if held with the index fi nger
it should bend a little (Fig.24).
EN - 17
THE