Tire Demounting; Preparations For Demounting - OMCN Gebrauch und wartung Betriebsanleitung

5. Operating instructions
Warning - tire or rim damage danger!
Excessive pressure can e. g. result in cracks
(on the inside/outside) of the tire. The rim
can be scratched or deformed.
€
Read the Wdk publications available
in German and English! (www.wdk.de:
mounting/demounting instructions –
criteria catalogue)
€
Inner temperature of the tire must be at
least 15 °C (only in case of RFT/UHP).
€
Read the Wdk publications available
in German and English! (www.wdk.de:
mounting/demounting instructions – tire
overheating)
€
Adjust pressure to the type of tire.
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Apply plastic protections on the types of
rim that need them.
!
Before demounting or mounting operations it is
extremely important to collect all the rim and tire
data. In this way it will be possible to know in
advance the mounting, the pressure and the required
accessories!
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Remove all the balancing weights on the rim.
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If the semi drop centre of the rim is placed in the
lower part it is necessary to insert a lock cover (see
chap. 3.3) on the flanged plate, because in this case
the rim leans on its side during rotation.
5.1

Tire demounting

i
Read the Wdk publications available in German and
English!
(www.wdk.de: mounting/demounting instructions)
5.1.1

Preparations for demounting

!
Avoid valve damage!
1. Pull out the valve element from the valve..
« The air is discharged completely from the tire.
2. Place the wheel on the floor, close to the
antiabrasive supports of the bead breaker; to put
the blade (1) close to the bead press the bead
breaker control pedal (2). The operation has to
be carried out in different points of the wheel
(rotating it manually) until the bead doesn't come off
completely.
OMCN spa
Operating instructions | GRIP F 20 | 31
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Lubricate the side of the tire and the rim shoulder
with mounting paste to make the bead breaking
operations 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.
€
Inner temperature of the tire must be at
least 15 °C.
€
Read the Wdk publications available in
German and English! (www.wdk.de:
mounting/demounting instructions – tire
overheating)
€
Before mounting put the tire in a temperate
room.
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1 695 108 479 2016-09-26