Page64Alterations reserved Version 05/2008
Operating Manual B21-C - en
2.4 Suction wheel
The suction wheel 1 which transports the
sheets onto the alignment table enables
you to change the point of suction .
Generally, the point of suction should be
at the lowest position of the suction
wheel, for which the adjustment lever 2
must be in a vertical position. However,
should the suction point be moved
forward (if sheets are curled at front)
move the lever into the upwards direction.
Should, however, the point of suction be
moved to the rear (if sheets are curled
up) move the lever into the downwards
direction. When processing sensitive
papers and double sheets are supported
frequently you may decrease the vacuum
at suction wheel.
Near the suction wheel you can find a
handle 3. The handle 3 has got a screw 4
and two air holes 5.The screw 4 has
been completely screwed-in by
manufacturer and the holes are closed.
Partial unscrewing of this screw will
cause the opening of one or both of
these holes. You can open the air hole 7
by turning the disc 6. The opening of the
air holes will than cause a decrease of
vacuum at suction wheel.
With all holes closed maximum quantity of vacuum
With some holes open medium quantity of vacuum
With all holes open minimum quantity of vacuum
7
1
3
2
4
6
5