4 g 3 g 1 g 6 g – CEMB USA C72 (B) User Manual

Page 19

I 0307_0308 -

12/13 mm

4 g

3 g

1 g

6 g

5.4.4 - ALU AND STATIC MODES

From the Measurement screen, press button

to select the type required. The 5-LED displays show

the position where to apply the weights. If a spin has already been performed, the processor automatically
recalculates, for each change of mode, the amounts of unbalance according to the new calculation.
Fig. 19

DYNAMIC

Balancing steel or light alloy wheel rims by

applying clamp weights on the edge of the wheel rim.

STATICO

The static mode is necessary for motorcycle wheels or

when it is not possible to place the counterweights on

both

sides

the

rim.

ALU - S

Balancing of light alloy rims with application of adhesive

weights in positions inside the rim (user settable).

ALU - 1

Balancing of light alloy rims with application of adhesive

weights

the

rim

shoulders.

ALU - 2

Balancing of light alloy rims with hidden application of

the outer adhesive weight. Outer weight position is fi xed.

ALU - 3

Combined application: clip-on weight inside and hidden

adhesive weight on outside (Mercedes). Outer weight

position

the

same

ALU-2.

ALU - 4

Combined application: adhesive weight outside and

clip-on

weight

inside.

5.4.5 - AUTOMATIC MINIMIZATION OF STATIC UNBALANCE

resting surface

This program is designed to improve the quality of balancing without any mental effort or loss of time by the ope-
rator. 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.

Initial unbalance

phase shift

Possible approximations

residual static

residual static

With conventional

wheel balancer

Choice with minimum

static residual