Static Balancing - Corghi EM 7240 Manuel D'utilisation

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during wheel spin.

- Wait for the wheel to stop automatically and for the calculated unbalance values to be

displayed.

- Select the first side to be balanced.

- Rotate the wheel until the central element of the corresponding position indicator lights up.

- Apply the indicated balancing weight in the position on the rim corresponding to 12

o'clock.

- Repeat the operations listed above for the second side of the wheel.

- Perform a test wheel spin to check the balancing accuracy. If it is not satisfactory, modify

the value and position of the weights previously applied.

Bear in mind that a counterweight positioning error of just a few degrees may lead to a

residual unbalance as large as 5-10 grams during the verification phase, especially in the

case of large unbalances.

WARNING

Check that the system which fits the weight to the rim is in optimum condition.

A weight which is not fitted properly or correctly may come off as the wheel rotates,

thus creating a potential danger.

If the

key is pressed whilst the wheel is rotating, the spin will be prematurely

interrupted.

A wheel can be balanced using a single counterweight on one of its two sides or in the

centre of the well. This is called static balancing. However, there is still the risk of dynamic

unbalance, which becomes more significant as the width of the wheel increases.

- Press the

illuminates.

- Press the

- Set the wheel diameter value (in static mode it is not necessary to enter the width and

distance values).

- Spin the wheel by lowering the guard.

- Wait for the wheel to stop automatically and for the calculated static unbalance value

to be displayed.

- Rotate the wheel until the central element of the position indicator lights up.

- Apply the balancing weight in the 12 o'clock position on either the outer or inner side,

or at the centre of the rim well, indifferently. If applied in the well, the weight is applied

on a diameter smaller than the rated diameter of the rim. A value of 2 or 3 inches less

than the rated value must therefore be entered when the diameter is set in order to

obtain correct results.

- Follow the instructions specified in the dynamic balancing procedure to perform a test

wheel spin.