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Page 11

Model EEWB308B Operators Manual

Slide the other cone onto the spindle.

Make sure the wheel is centered on both cones.

Moderately tighten the ring nut with only enough pres-
sure to prevent the wheel from slipping when the
brake is applied. To avoid excessive wear on the
pressure disc, do not overtighten the ring nut.

NOTE:

When powered on, the machine defaults to

the motorcycle wheel balancing (MCWB) mode. In
the event the mode has been changed, enter P20 to
activate the MCWB mode. If P4 adapter calibration
has not been performed first, the machine will not
enter the MCWB mode and display “do P4” to re-
mind the operator to perform P4 first.

Figure 12

To perform a “P4” compensation, first mount the
Flange assembly to the shaft as shown in Figure
12. Enter “P4” and press Enter. Then spin the shaft
until a tone is heard. A second tone will sound as
the shaft brakes to a stop. The adapter is now com-
pensated. See Figure 12.

Use SAPE to enter the distance value. Or enter the
values manually using the distance gauge scale and
by rotating the shaft to enter the desired value.
NOTE: The display value matches the value read on
the gauge rod, however, the actual value entered adds
100 mm to the calculation. See Figure 13.

Figure 13

Use left and right knobs to enter the width and diam-
eter values.

Spin shaft and wheel assembly with the left crank
handle up to speed until the tone alert sounds.

NOTE

: Disregard any pressure disc runout that may

occur. The pressure discs are made of lightweight
material and will not affect balancing accuracy.

10.

Allow the wheel to spin freely until a second tone is

heard. After calculations, the automatic brake will
stop the wheel.

NOTE

: Do not lean on the balancer

while the wheel is spinning, doing so can cause in-
accurate readings.

NOTE

: Do not use the foot operated shaft lock as a

brake, it is intended to be used only to prevent shaft
rotation while placing corrective weights.

11.

After the wheel stops, slowly rotate the wheel by

hand until center position LED lights. Hold the wheel
in this position using the foot brake.

12.

Note the displayed imbalance, and place this amount

of weight at top dead center.

4.3 MODE SELECTIONS

NOTE:

While most “Aluminum” modes are used prima-

rily for automotive applications some can be utilized on
wide or “Fat” wheels used on today’s custom motor-
cycles.

Static unbalance

With purely static imbalance the center of gravity and
thus the principal axis of inertia of the wheel is not on
the axis of rotation. Due to the unbalanced mass the
wheel has a heavy and light side related to the axis of
rotation. Static imbalance is compensated for by fitting
counterbalance weights to the light side of the wheel,
either in the center or on the sides of the rim.

Dynamic unbalance

With purely dynamic imbalance the center of gravity of
the wheel is on the axis of rotation, but the principal axis
of inertia is inclined relative to the axis of rotation. The
unbalanced masses are diagonally opposed to each other
and of equal size. To compensate for dynamic imbal-
ance each side of the wheel is considered separately
and the imbalances are compensated for separately on
each side of the wheel.