Corghi ET88 Manual De Uso página 79

BALANCING PROGRAMS
- Standard dynamic balancing
- dynamic balancing of wheels with alloy rims
- static balancing.
The balancing programs described are available in both truck and car functions and
can be accessed by selecting the first three icons on the left of the main menu.
Before starting a balancing operation, proceed as follows:
- fit the wheel on the hub using the most suitable flange; see the guidelines
provided in the data bank ;
- secure the wheel so that no movements are possible during the wheel spin and
braking phases;
- remove any balancing weights, stones, dirt or other foreign bodies from the
wheel;
- enter the wheel data correctly.
This balancing mode is automatically recalled by the machine at switch-on; if
a different balancing program is active, select the
menu.
The video page relating to this program appears on the screen (fig.13).
Now proceed as follows :
- Enter the wheel data correctly.
- Execute a spin cycle.
To obtain the highest precision in the results, do not apply any undue stresses to
the machine during wheel spin.
- wait for the wheel to stop automatically and for the imbalance values calculated
to appear.
- select the first side to be balanced.
- turn the wheel until the central element of the corresponding position indicator
illuminates.
- lock the wheel in position by pressing the STOP key to simplify the weight
application procedure which follows;
- apply the balancing weight indicated, in the position on the rim corresponding to
12 o'clock.
- release the wheel by pressing the STOP key again;
- repeat the operations listed above for the second side of the wheel.
- carry out another wheel spin to check the balancing precision. If this is not
considered satisfactory, modify the value and position of the weights applied
previously, following the guidance provided by the balance control diagram
(fig.16).
Remember that especially for large imbalances, an error of a few degrees in placing
of the weight may lead to high residues (up to 5-10 grams for car wheels and 50-
100gr for truck wheels) in the subsequent check.
ET 88 operator's manual
Dynamic balancing (STANDARD)
Dynamic balancing (STANDARD)
icon from the main
GB
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