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INSTRUCTION, USE AND
MAINTENANCE MANUAL
14.4 Measuring the unbalance with auxil-
iary programs
The available functions allow to select the appropri-
ate weight positions to be placed in different positions
compared to the standard ones (dynamic unbalance).
The ALU programs measure rims by means of pre-set
data in the wheel balancer.
The measurements entered by the operator will there-
fore be automatically corrected by the machine accord-
ing to the selected program.
On the left side of the panel are indicated the possible
selection modes. Select the desired function by means
of key and enter the measurements.
POSSIBLE SELECTABLE FUNCTIONS
ALU-S1 function permits balancing wheels with light
alloy rims by fitting adhesive weights on the outer
side and weight with clip on inner side of wheel (at
“12 o'clock”).
Enter the measurements (see Par. 14.1) and proceed
as described in Par. 14.4.1 (the inner weight is with
clip).
ALU-S2 function allows the balancing of wheels with
light alloy rims by fitting two adhesive weights on rim
outer and inner sides (both weights at “12 o’clock”).
Enter the measurements (see Par. 14.1) and proceed
as described in Par. 14.4.1 (the inner weight is adhe-
sive).
The ST2 function is a procedure that offsets wheel
vibrations using a single adhesive weight on a single
plane positioned exactly at 12 o’ clock.
Enter the measurements (see Par. 14.1) and proceed
as described in Par. 14.3.3 Dynamic balancing (only
for wheel inner side).
The ST1 function is a procedure that offsets wheel
vibrations using a single weight with clip on a single
plane positioned exactly at “12 o’ clock”.
Enter the measurements (see Par. 14.1) and proceed
as described in Par. 14.3.3 Dynamic balancing (only
for wheel inner side).
ALU1 function permits balancing wheels with light al-
loy rims by fitting adhesive weights on the outer and
inner sides of the rim at 12 o’clock (both).
Enter the measurements (see Par. 14.1) and proceed
as described in Par. 14.4.1.
Fixed LED
Weight application point inside
rim edge. FIRST MOVEMENT (ALU1)
Flashing LED
ALU2 function balances wheels with light alloy rims
by fitting adhesive weights on the outside and inside
of the rim. The position of the outer weight is not vis-
ible but hidden inside. Enter the measurements (see
Par. 14.1) and proceed as for dynamic unbalance at
12 o’clock (both).
Weight application point inside
rim edge. FIRST MOVEMENT (ALU2)
ALU3 function is a procedure that uses mixed weights
to offset wheel unbalance: weight with clip on inner
side of wheel, adhesive weight at “12 o’ clock” on outer
side, not visible because inside the rim.
Enter the measurements (see Par. 14.1) and proceed
as for dynamic unbalance.
1297-M043-0
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