Demounting Tubeless Truck Tires - John Bean T 8026 Manuel D'utilisation

Démonte-pneu électro-hydraulique
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5-4
5-5
5-6
Operation

5.2 Demounting tubeless truck tires

(up to 13" wide)
The tubeless truck tires are mounted on drop-center
rims with a conical base. It is possible to demount
these tires simply by pressure, with a proper lubrication
(Fig.5.2-1).
1.
Remove all wheel-weights from the rim.
Remove the valve stem or core and defl ate the tire.
2.
Position the bead breaker disc or tubeless roller
(accessory) as shown in Fig.5-5, Fig.5-6.
TO BREAK THE TIRE BEAD ONLY USE THE
DEVICES ILLUSTRATED.
3.
Lift or lower the chuck so that the bead breaker disc
or tubeless roller remains close to the rim edge. Turn
the chuck counter-clockwise and at the same time shift
the toolholder carriage step-by-step toward the inside
to demount the tire.
Continue to turn the chuck and lubricate the bead and
the rim liberally with an approved lubricant.
USE ONLY SPECIFIC LUBRICANTS FOR TIRES
AND WHEELS. APPROVED LUBRICANTS DO NOT
CONTAIN WATER, PETROLEUM PRODUCTS/
HYDROCARBONS OR SILICONE.
4.
Raise the toolholder arm to the rest position.
5.
Move the toolholder arm all the way in.
Lower the arm and secure.
Bring the tool in contact with the inner bead.
6.
Break the inner bead as described in point #3 above.
Operator's Manual
T 8026

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