Demounting - Bosch TCE 4420 Manual Original

en 32 | TCE 4420 | Operating instructions
i
Lubricate the side of the tire and the hump with
mounting paste to make the bead breaking opera-
tions easier.
2
3. 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.
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Do not insert limbs between the tire and
the bead breaking arm.
Warning – damage risk for RFT or UHP tires!
Cracks in case of operation on cold tire. Tire
explosion in case of high speed.
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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.
5.1.2

Demounting

Warning – hand injury danger!
During locking plate rotation there is a risk of
crush injuries.
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Do not insert the fingers between the tire
and the rim.
1. Press locking button to unlock the sliding rod.
2. Press the tilting column pedal to tilt the column
backwards.
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3. For external locking of the rim press the locking jaws
pedal to prepare the jaws in the open position;
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In case of internal locking the jaws have to be in the
closed position.
4. Place the wheel on the locking plate
5. Exerting with the hand a pressure on the rim, press
(and release immediately) the locking jaws pedal in
order to lock it.
6. Lubricate with mounting paste the side of the tire till
the edge of the rim.
7. Press (and release immediately) the tilting column
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pedal to lower the column.
8. Bring the mounting tool near the rim until there is a
contact between the roller and the edge of the rim.
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Pressing the locking button obtains the automatic
horizontal and vertical distance from the rim and the
arm locking.
9. 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.
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In case RFT or UPH tires the use of accessories like
clamps, wedge or of the TCE 300 bead breaker is
suggested.
10. With the provided bead breaking lever lift the edge
of the tire and put lay it on the mounting tool tab
(1).
11. Press the rotation pedal to rotate clockwise the
locking plate, until complete ejection of the bead
from the rim.
1
Robert Bosch GmbH