John Bean VPI System, Operation Instructions Manual

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Page 18
7.0 ALU-S MODE
This is a mode similar to ALU mode 2 and 3. The differ-
ence is that the distance and width parameters are ac-
curately defined for a more exacting weight placement,
therefore improving the likelihood of a single spin bal-
ance. Follow the procedures below:
1. Press the Alu-s/Spoke button to activate the ALU-S
mode, the display will read " ALU - S".
2. Extend the rim offset gauge arm and touch the posi-
tion of the left weight position. See Figure 31. The
display will read “d - I”. The high tone will sound when
dimension is entered. Return the gauge arm to the rest
position, a low pitch tone will indicate when it is OK to
proceed.
3. Move the parameter arm to the right weight posi-
tion, the machine displays “d - 2” as the arm is moved.
See Figure 32. The high tone will sound when dimen-
sions are entered. Return the gauge arm to the rest
position, a low pitch tone will indicate when it is OK to
proceed.
4. Enter the measured rim diameter by pressing the
Diameter button followed by the UP or Down arrow
button or by rotating the shaft until the desired value
appears in the right display.
5. Lower the wheel guard or press “Enter” to spin the
wheel. The display will read “ALU” during the spin cycle.
6. After spinning, the machine displays both the left
and right plane imbalance weight and position with its
color LEDs.
Rotate the wheel until the left Green LED indicates cor-
rect position for the left correction weight.
7. Extend the gauge arm. The left display shows the
weight amount to be applied, the right display shows
the distance the gauge arm has to travel to get to the
correction plane. A high beep will sound when the cor-
rect position is reached, at the same time the right dis-
play will read “0“ when the proper position is attained.
A reading of “- - -“ in the distance window means the
gauge arm is over extended. Apply the weight amount
indicated in the left window using the tape weight appli-
cator mounted on the SAPE extension.
Return the gauge arm to its home position.
8. The right plane correction weight will be applied next
as in step 7 above. The steps outlines are:
- Extend the arm until “0” is indicated in left window.
- Position the wheel in the weight application position
- Apply the displayed weight.
NOTE: Returning the gauge arm to the “Home” posi-
tion toggles between the left and right correction plane.
NOTE: To exit ALU-S mode and return to two plane
DYN (dynamic) mode press “Mode” button. The ma-
chine displays "ALU OFF" for one second and then
enters idle state in the 2-pl DYN mode
NOTE: Inspect the rim and available weights and use
good judgement in your selection. Weights should not
interfere with any suspension parts or make contact
during rotation. If a weight does make contact, use an
alternate location and select an appropriate mode.
Figure 31
Figure 32