CEMB USA C88 EVO (C) - Manual (Page 16)

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Use and maintenance manual Rev. 02-2010
ENGLISH
Use of the wheel balancer
5.9 CORRECTION MODE
After having performed automatic measurement of the
inner side, it is possible to place the correction weights as
required by pressing pushbuttons
INDICATION
In the event of automatic measurement of both sides, if
the difference between the inner and outer diameters is
greater than or equal to 2”, the system sets the inner side
spring weight.
To modify this presetting, press the
button.
To display static unbalance, press the button on the
measurement screen (for ALUS static, the inner side
diameter is always considered).
5.9.1 Automatic minimization of static unbalance
This program is designed to improve the quality of balancing
without any mental effort or loss of time by the operator. In
fact by using the normal commercially available weights, with
pitch of 5 in every 5 g, and by applying the two counterweights
which a conventional wheel balancer rounds to the nearest
value, there could be a residual static unbalance of up to 4
g. The damage of such approximation is emphasized by the
fact that static unbalance is cause of most of disturbances
on the vehicle. This new function, resident in the machine,
automatically indicates the optimum entity of the weights
to be applied by approximating them in an “intelligent” way
according to their position in order to minimize residual static
unbalance.
5.8 “SPLIT” CONTROL (HIDDEN WEIGHT)
SPLIT is only possible in the event of static unbalance or
ALUS external side and is used to hide any adhesive weights
correcting unbalance behind the rim spokes.
To split the unbalance detected in two different positions,
proceed as follows :
1. Position static unbalance or ALUS external side in the
correction position :
2. Select a spoke close to the 12 o’clock postion to be cor
rected, more it into the 12 o’clock position and press
button
3. Turn the wheel in the rotation direction indicated on the
unbalance display, brining the second spoke to the 12
o’clock position and press button .
Turn the wheel in direction of rotation.
Turn the wheel in reverse direction of
rotation.
4. At this point, two indications appear on screen for
positioning of the unbalance correction spokes.
5. Position the spokes indicated on screen in the 12
o’clock position and correct with the value displayed.
Any error in this procedure is clearly shown on screen.
Always follow the information provided by the wheel to
optimise correction.
Initial unbalance
Phase shift
Possible approximations
static residue static residue static residue static residue
With traditional wheel
balancer
Choice with minimum static
unbalance