COATS ProRide Wheel Balancer - Manual (Page 28)

24 • Important: Always read and follow instructions.
Sonar LR Instruction
In order to obtain the correct lateral eccentricity val-
ues, the sonar cone must be positioned inside the tire
shoulder. The function of the LED is to make it easier
to position the sonar correctly, but always bear in mind
that it does not indicate the focus of the pad as it is
situated 30 mm further down.
Figure 28 - Sonar Placement
The rim eccentricity measurement is important in
order to try and reduce the total eccentricity of the
wheel simply by turning the tire on the rim.
1. Press the button from the eccentricity
graph display frame
2. Hold the arm as shown in figure 29 in such a way
that it does not turn during the measurement
Figure 29 - Hold Arm As Shown
3. Rest the round part of the arm inside the rim as
shown in figure 30.
Figure 30 - Rest Round Part Of Arm On Rim As Shown
4. Press the button and slowly turn the wheel
by hand, keeping a constant pressure on the arm until
the following frame appears:
Figure 31 - Graph
The graph simultaneously shows the total eccentricity,
the rim and the tire values. Before turning the tire on
the rim, check if the POSSIBLE REDUCTION indicated
on-screen is sufficient to bring the wheel eccentricity
within tolerance. It is possible to set the minimum cor-
rection limit below which it is never considered appro-
priate to intervene (CORRECTION RUNOUT LIMIT), and
the maximum first harmonic eccentricity limit of the rim
below which it is considered of little use to turn the tire
on the rim (MAX. TRUE RUNOUT LIMIT).
The following buttons are enabled:
➤ Print
To print the runout values measured (option).
➤ Exit
Return to the previous screen.
30 8°
FRONT VIEW LATERAL VIEW
mm