INSTRUCTION, USE AND
MAINTENANCE MANUAL
Page 15 of 36
GB
11.4 Post handle manual adjustment
On the post is placed a pneumatically controlled handle
that allows the locking and unlocking of the vertical
and horizontal arm.
Pushing the push-button located on this handle
Fig. 13
) the following operations can be carried out:
1
st
tripping:
locking of the vertical and horizontal arm
in working position;
2
nd
tripping:
unlocking of vertical and horizontal arm
and manual rise of vertical arm in rest position (all
upward).
1° 2°
Fig. 13
12.0 USING THE MACHINE
12.1 Precaution measures during tyre re-
moval and fitting
Before fitting a tyre, observe the following safety rules:
• rim and tyre must be clean, dry and in good condi-
tion; if necessary, remove the balancing weights and
clean the rim. Check that:
- neither the bead nor the tread of the tyre are dam-
aged;
- the rim does not produce dents and/or deformation
(especially for alloy rims, dents can cause internal
micro-fractures, that pass unobserved at visual
inspection, and can compromise the solidity of the
rim and constitute danger even during inflation);
• adequately lubricate the contact surface of rim and
tyre bead, using specific tyre lubricants only;
• replace the inner tube valve with a new valve, if the
tyre tube has a metal valve, replace the grommet;
• make sure that the tyre is the right size for the rim;
on the contrary, never fit a tyre unless you are sure
it is the right size (the rated size of the rim and tyre
is usually printed directly on each of them);
• do not use compressed air or water jets to clean the
wheels on the machine.
12.2 Preliminary operations - Preparing the
wheel
• Remove the wheel balancing weights from both sides
of the wheel.
REMOVE THE VALVE STEM AND
ALLOW THE TYRE TO COMPLETE-
LY DEFLATE.
• Establish from which side the tyre should be de-
mounted, checking the position of the groove.
• Find the rim locking type.
• Try to establish the special types of wheels, such as
“TD” and “AH”, in order to improve locking, bead
breaking, assembly and disassembly performances.
7300-M023-0_B
HP441S.XX - HP441S.XXFI
HP441SQ.XX - HP441SQ.XXFI