John Bean VPI System, Operation Instructions Manual

Page 13

John Bean VPI System I  Operators Manual

4.5 ENTER RIM PARAMETERS

4.5.1  Rim Distance (offset) - Move the rim off-
set arm to the edge of the rim, touch the pointer to
the rim edge as illustrated in Figure 22 and hold
steady for about a second.  The beeper will sound
when the distance values are calculated and en-
tered automatically. Return the arm  to its fully in
and down position on the balancer. Do not allow
the measurement arm to "dangle" down in front of
the balancer.

Figure 22

4.5.2  Rim Diameter Entry

- Select the Manual

Diameter button (#11 page 9). Read the rim di-
ameter marked on the sidewall of the tire (Figure
23). Enter the measured rim diameter 

by pressing

the 

Diameter button followed by the UP or Down ar-

row button

 until the desired value appears in the

right display.

Figure 23

4.5.3   Measure Rim Width using rim width
calipers.  Measure wheel where corrective clip-on
weight would be applied, Figure 24.  Enter the
measured width by pressing  the 

UP  or  Down

arrow button until the desired value appears in the
center display.

4.5.3 Manual Parameter Entry
In the event of automatic gauge failure, the dis-
tance values can be input manually.

4.5.3.1 Manual Distance Entry - Move the dis-
tance gauge arm to touch the inner edge of the
wheel where weights are to be placed and observe
the reading on the scale of the distance gauge.
Press manual Wheel 

Offset button (#13 page 9)

followed 

by  pressing  the 

UP or Down arrow button

until value is displayed in the left display window.

NOTE:   For a more precise balancing of perfor-
mance wheels, an “ALU-S” Mode is available for
precision determination of wheel parameters.  This
feature allows exacting placement of corrective
weights as well. See 

Page 18 for detailed instruc-

tions.

NOTE: The parameter arm must be in the Home
rest position when the balancer is powered up.
Thisestablishes the arm starting position.

Figure 24