Tire Demounting; Preparations For Demounting; Demounting - Sicam COLIBRI BL512 26 ITAS Manual Original

5.2

Tire demounting

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Read the Wdk publications available in German and
English!
(www.wdk.de: mounting/demounting instructions).
5.2.1

Preparations for demounting

!
Avoid valve damage!
1. Pull out the needle from the valve.
« The air is discharged completely from the tire.
2. Before starting bead breaking operations adjust the
3 position device according to tire width.
3. Place the wheel on the floor, close to the antiabrasi-
ve supports of the beadbreaker; to put the blade (1)
close to the bead pressing the bead breaker control
pedal (2). The operation has to be carried out in dif-
ferent points of the wheel (rotating it manually) until
the bead doesn't come off completely.
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Lubricate the side of the tire and the hump with
mounting paste to make the bead breaking opera-
tions easier.
2
4. Repeat the operation on the opposite side of the
wheel.
Warning – limb injury danger!
During operation of the bead breaking arm,
be careful in order to avoid that the limbs are
not crushed between the tire and the bead
breaker.
€
Do not insert limbs between the tire and
the bead breaking arm.
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Operating instructions | COLIBRI BL512 26" ITAS | 29
Warning – damage risk for RFT or UHP tires!
Cracks in case of operation on cold tire. Tire
explosion in case of high speed.
5.2.2

Demounting

Warning – hand injury danger!
During locking plate rotation there is a risk of
crush injuries.
1. Turn counterclockwise the locking knob to unlock
the sliding rod.
2. For external locking of the rim press the locking
jaws opening pedal to prepare the jaws in the open
position;
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In case of internal locking the jaws must be prepared
in the closing position.
3. Place the wheel on the locking plate
4. Exerting with the hand a pressure on the rim, press
(and release immediately) the locking jaws closing
pedal in order to lock it.
5. Lubricate with mounting paste the side of the tire till
the edge of the rim.
1
6. Bring the mounting tool close to the rim until the
roller touches the edge of the rim.
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Lift the locking lever of the vertical rod to carry
out vertical spacing of the mounting tool and arm
blocking
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Use the locking knob of the horizontal arm to adjust
mounting tool spacing from the tab (the recommen-
ded spacing is 3 mm).
7. Insert the bead breaking lever between the mounting
tool and the bead of the rim. To make this operation
easier bring the bead in the part opposite to the
mounting tool inside the semi drop centre of the rim.
€
Inner temperature of the tire must be at
least 15 °C.
€
Read the Wdk publications available in Ger-
man and English! (www.wdk.de: mounting/
demounting instructions – tire overheating)
€
Before mounting put the tire in a temperate
room.
€
Do not insert the fingers between the tire
and the rim.
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105 890 2010-11-08