INSTRUCTION, USE
AND MAINTENANCE MANUAL
GB
Page 37 of 168
• Tilt up tool holder arm placing it in “out of work”
position (
Fig. 22 ref. 1
) after it has been unhooked.
• Lower the mandrel until the wheel rests on the fo-
otboard.
• Move to work position
B
(
Fig. 12
).
• Check the state of the tyre valve and centre it, if neces-
sary, in the rim hole by slightly turning the mandrel;
fix the valve with the supplied ring nut after having
removed the protective extension.
• Close the mandrel jaws completely, making sure the
wheel is held up to avoid dropping.
MAKE SURE THAT THE WHEEL’S
HOLD IS SECURE TO AVOID IT
FALLING DURING REMOVAL.
FOR HEAVY AND/OR VERY LAR
-
GE WHEELS USE AN ADEQUATE
LIFTING DEVICE.
• Translate the platform to release the wheel from the
mandrel.
12.8 Wheels with bead wire
As an example
Fig. 51
and
52
illustrate sections and
compositions of types of wheels with bead wire cur-
rently being sold.
Fig. 51
Lock
ring
Lock
ring
Non split
side ring
Non split
side ring
Tapered
bead seat
ring
Three-piece flat base rim and
pertinent rings for tubed tyres
and SOLID tyres
Four-piece 5” tapered bead seat
rim and pertinent rings for tubed
and SOLID tyres
Fig. 52
Lock
ring
Lock
ring
Non split
ring
Non split
ring
Rubber seal-
ing ring
O-sealing
ring
12.8.1 Beading and demounting
NEVER STAND IN FRONT OF THE
WHEEL WHILE THE INFLATION
RING IS BEING EXTRACTED FROM
THE BEAD WIRE, SINCE IT MAY BE
EJECTED VIOLENTLY, CAUSING
SERIOUS INJURIES OR WOUNDS.
THROUGHOUT TYRE MOUNTING/
DEMOUNTING OPERATIONS,
CHECK THAT THE SELF-CEN-
TRING CHUCK CLAMPING PRES-
SURE IS CLOSE TO THE MAXIMUM
OPERATING VALUE (160 - 180
BAR).
• Mount the wheel on the mandrel as described in
“WHEEL CLAMPING” and make sure it is deflated.
• Move to work position
D
(
Fig. 12
).
• Place the tool arm in “working position” (
Fig. 21
ref. 1
) in the tyre inner side, and make sure it is
locked by the provided safety stop (
Fig. 1, 2, 3, 4,
5, 6 or 7 ref. 8
).
• Position the beading disc on rim edge (see
Fig. 53
).
Fig. 53
• Turn the mandrel and smear the entire bead seat
of the rim with lubricant. While doing this, jerk the
beading disc forward until the first bead is removed
(as these wheels feature inner tubes, carry out the
operation carefully, paying special attention to when
the bead dislodges, trying to stop disc advancement
immediately to avoid compromising the integrity of
the inner tube and valve).
• Place the tools holder arm in “out of work” position
(
Fig. 22 ref. 1
), operate the handle control in order
to position the tools holder arm on the wheel outer
side, then place it in “working position” (
Fig. 21
ref. 1
) again and lock it with the safety hook pro-
vided.
7522-M001-14_P
GG40256.11SL - GG40256.11ST - GG40256.15
GG40256T.15 - GG40256A.15 - GG40256D.15
GG40256TD.15 - GG40256.15SL - GG60360.15
GG60360T.15 - GG60360A.15 - GG60360D.15 - GG60360TD.15
