Technical data

Operating manual ALX 73x | file version 02 | 03/2012 Mechanical settings | 79

TARTUP

AND

OPERATION

ALX

73x

Setting the return force of the

unwinder dancer lever

The dancer lever on the unwinder is set so that a wide

range of label materials can be processed without hav-

ing to change the setting of the dancer lever return

force.

Very narrow label material may tear in some circum-

stances or may be stretched so much that dispensing

accuracy is impaired. If this happens, the dancer lever

force must be reduced:

Unwinder with diameter of 400 mm

1. Loosen the lock ring [76B]. To do this turn the ring

opposite to the arrow direction shown here while at

the same time firmly holding the adjusting ring

[76A].

2. Turn the adjusting ring [76A] opposite to the arrow

direction to increase the return force.

Turn the adjusting ring [76A] in the arrow direction

to decrease the return force.

3. Hold the adjusting ring firmly again.

Unwinder with diameter of 300 mm

Tools: 2.5 mm Allen key wrench

 Turn the setting screw [77A] on the dancer lever to

the left to increase the return force.

 Turn the setting screw [77A] on the dancer lever to

the right to decrease the return force.

[75] Return spring (A) on the dancer lever of the 400 mm unwinder.

[76] Return force adjustment on the dancer lever of the 400 mm

unwinder.

A Adjusting ring

B Locking ring

[77] Return force adjustment on the dancer lever of the 300 mm

unwinder.