Page 19
John Bean VPI System I Operators Manual
8.0 Spoke Balancing Mode
A standard dynamic balance places compenstation weight in two
planes, inner and outer, at the top dead center 180 degrees of
each plane of calculated imbalance. Sometimes the outide weight
placement may be unsightly on a custom wheel. See Figure 33.
The Spoke Mode is designed to “hide” outer plane corrective
weight by placing the required weight behind selected spokes in
order to retain the esthetic appeal of the wheel.
1. Press the Alu-s/Spoke button until “SPO” is displayed, the
display will read " SPO " when activated.
2. Enter left plane distance using the SAPE as you would a
dynamic 2-plane or ALU-S balance.
3. Move the parameter arm to the right weight position, the
machine displays “d - 2” as the arm is moved.
4. Enter the measured rim diameter by pressing the
UP or
Down arrow button or by rotating the shaft until the desired value
appears in the right display.
5. Press Enter, or, lower hood guard. The display will read
“SPO” while spinning. After Braking to a stop rotate the shaft to
the inside plane top dead center position indicated by the center
green LED. Extend the SAPE until the right reading says “0”,
place indicated weight in the position directed by the SAPE.
6. Rotate the wheel to the outside plane top dead center posi-
tion indicated by the center green LED, press the "F" button to
indicate top dead center.
NOTE: Mark the tire to assist in referencing the corrective weight
top dead center.
7. The display will read "SPO I “. Locate the first spoke near-
est to top dead center and rotate the wheel so that spoke is at
top dead center. See Figure 34. Press
P to store first position.
8. The display will read “SPO 2 “. Locate the second closest
spoke to top dead center and rotate the wheel to the top dead
center position, press
F Button again to store the position. See
Figure 35.
9. The display will read “P -2” on its left window and the bal-
ance weight amount in right window. Place the weight amount
displayed at “position 2” behind the spoke, then rotate the wheel
to locate position 1. See Figure 36.
10. When position 1 is located, the balancer will beep. The dis-
play will read “P -1” in the left window and the weight amount on
right window. Place the weight amount displayed at “position 1”
behind the spoke.
11. Perform a check spin if desired.
Figure 33
Figure 34
Figure 35
Figure 36
X
X
X
Summary of Contents for VPI System
Page 2: ......
Page 26: ...NOTES ...
