WARNING
Check that the system which fits the weight to
the rim is in optimum condition.
A weight which is not fitted properly or correctly
may come off as the wheel rotates, thus creating
a potential danger.
The wheel can be locked in three ways in order
to make the weight application operation easier:
- By keeping the wheel in the centred position for
one second. The brake activates automatically
with a reduced braking force so as to allow the
operator to move the wheel manually until the
correct position for the other weight's applica-
tion is reached.
- By pressing the STOP button
the wheel is in one of the weight application
positions (maximum braking force); the wheel is
unlocked by pressing the stop
again, by performing a spin or after about 30
seconds.
The shaft locking system can also be useful during
installation of special centring accessories.
If the STOP
button is pressed while the
wheel is spinning, the spin is interrupted even if
it is not completed.
If the "RPA" (automatic position search) pro-
gramme is active, at the end of each balancing
spin the machine stops the wheel in the position
for application of the weight on the inner side;
if it is equal to zero, the wheel is stopped in
the position for application on the outer side.
Pressing the START
guard raised, automatic search for the second
side position is activated.
This function is described at length in the AUTO-
MATIC POSITION SEARCH section.
EM 9580 - Operator's manual
ALU 1P and ALU 2P programs
These programmes are used for maximum pre-
cision balancing of light alloy rims that require
both weights to be applied on the same side
(inner) in relation to the rim disk.
Wheel data acquisition
Geometric data relating to the actual balancing
planes rather than the rated wheel data (as in
standard ALU programmes) have to be set. The
balancing planes where the adhesive weights
are to be applied may be selected by the user
according to the specific shape of the rim. How-
ever, bear in mind that it is always preferable to
select balancing planes as far apart as possible
in order to reduce the quantity of the weight
to be applied; if the distance between the two
planes is less than 37 mm (1.5"), the A 5 message
is displayed.
- Move the end of the automatic internal meas-
when
uring arm in line with the plane selected for
the application of the inner weight.
In ALU 1P the balancing plane is approximately
15mm back (centre line of the weight) from the
contact point of the measuring head with the
button
rim (fig. 20).
button with the
In Alu 2 P refer to the rim edge, since the inner
weight is of the traditional clip type (fig. 14).
Pay maximum attention when the end of the arm
is being positioned in an area of the rim free of
discontinuity, so that the weight can be applied
in that position.
- Keep the arm in position. After
machine emits an acoustic confirmation signal to
indicate that the distance and diameter values
UK
20
one second
the
67