30
9.7 Automatic minimization of static unbalance
sx
g
g
dx
50°
sx
g
g
dx
4 g
3 g
1 g
6 g
sx
g
g
dx
sx
g
g
dx
sx
g
g
dx
Initial unbalance
Phase shift
Possible approximations
static residue
static residue
static residue
With traditional wheel
balancer
Choice with minimum static
unbalance
static residue
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.
Summary of Contents for PWB 50
Page 1: ...PWB 50 PWB 50 Use and maintenance instruction manual English PWB50 ...
Page 2: ......
Page 43: ...43 ...
Page 44: ......