Demounting Wheels For Earthmoving Machines Witha Side Ring; Mounting Wheels For Earthmoving Machines With A Side Ring; Tyre Grooving - Corghi AGTT 1600A Manual De Uso

DEmoUnTInG WHEElS For
EArTHmoVInG mACHInES WITH
A SIDE rInG
Position the rim tangentially to the bead breaker disc.
Keeping the tyre rotating, press on the front bead until freeing the side ring and the lock
ring (Fig. 42). If necessary, position the disc on the side ring and push it towards the tyre
(Fig. 43). In the automatic version, this operation can be made easier thanks to the hydrau-
lic movement of the bead breaker disc, which always guarantees perfect bead breaking
inclination (Fig. 44). In the semiautomatic version, the operator can select between the
2 positions provided by the disc support. The ring will be freed from the side ring and
will be extracted using the specific lever (Fig. 45).
Repeat the bead breaking operation on the rear side as shown in (Fig. 46) and continue
until the tyre comes out, with or without the side ring. It is recommended to place the
tyre on the ground. This makes it possible to remove the side ring without the wheel
falling.
N.B. For wheels that are particularly hard and locked on the side ring, demount the tyre
with the side ring still attached. To remove it, fix it to the turntable like a normal rim and
break it from the rear.
For a good bead breaking result, both in the front as well as in the rear, it is important to
adjust the inclination of the bead breaker disc, both manually as well as hydraulically.
This makes it possible to identify the correct inclination for inserting the disc between
the rim edge and the bead until it just touches the shoulder of the rim.
moUnTInG WHEElS For EArTHmoVInG
mACHInES WITH A SIDE rInG
Position the tyre in the loading area. Move the turntable with the locked rim, centring
it correctly. If necessary, turn the turntable, which may help the complete insertion of
the rim.
Mount the second bead using the bead breaker tool.
Insert the side ring and lock it with the specific lock ring (Fig. 47).
If the tyre is tubeless, insert the sealing ring between the rim and the side ring.
If the wheel has an inner tube, insert it in the tyre prior to mounting, stretching it out
uniformly inside the tyre, slightly inflated.

TYrE GrooVInG

After positioning the wheel with the rim on the turntable, set the rotation speed to mini-
mum using the specific switch (control 5 Fig. 13).
N.B. The grooving operation is done from the wheel entry side (clockwise rotation).
N.B. The grooving speed turns only clockwise.
50 Operator's manual AGTT 1600A - AGTT 1600