Corghi EM 7240 Manual De Uso página 85

- Perform a test wheel spin to check the balancing accuracy.
The rim surface must be perfectly clean to make the weight stick efficiently to the rim. If
necessary, clean the surface using suitable cleansing products.
In the machine versions without a weight-holding device proceed as follows:
- Select the plane where the first balancing weight is to be applied.
- Rotate the wheel until the central element of the corresponding position indicator lights up.
- Apply the adhesive weight manually in the position in which the relative plane was
measured, using the weight center of mass as a reference. In this phase, one display
shows the unbalance value of the side to be balanced and the other shows the message
"H.XX" that indicates the correct position of application as shown in Figure 11c.
"Mobile Planes" programme (available only with Alu P programmes)
This function is automatically enabled when an ALU P programme is selected.
It modifies the selected positions for the application of adhesive weights, so as to ensure
perfect balancing of the wheel using commercially available adhesive weights (i.e. mul-
tiples of five grams). The accuracy of the machine is thereby improved, avoiding rounding
off or cutting the weights to be applied to come closer to the actual unbalance values.
The modified positions, where the adhesive weights are to be applied, are identified by
the user according to the information given by the wheel balancer (see the BALANCING
WEIGHT APPLICATION section).
(available only with the ALU P programme)
This programme divides the outer weight Pe into two weights P1 and P2 located in any
position chosen by the operator.
The only condition is that the two weights and the original outer weight Pe must be within
an angle of 120°, as shown in Fig. 16.
Figure 16. Conditions necessary for using the Hidden Weights programme
The Hidden Weights programme may be used with alloy rims, in conjunction with the
programme ALU 1P or ALU 2P, in the following situations:
- When the outer weight would rather be hidden behind two spokes for aesthetic reasons.
EM 7240 Operator's manual
"HIDDEN WEIGHTS" PROGRAMME
UK
16
85