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Operator's Manual
3950 Series FD 3950
20
Setting for heavy paper grades
Heavy paper grades do not easily cling to the curve
of the suction drum.
For this reason the suction segment must be tilted
in direction of the paper stack.
The inclination of the suction segment in this
direction has the effect that the paper is barely
wrapped around the suction drum (1).
This is sufficient because heavier paper grades
are more easily separated from the stack.
1
2
Vacuum:
Vacuum can be modified by means of a regulating
valve (2). This is necessary because heavy paper
grades require more vacuum than light paper grades.
The vacuum can be modified by turning knob (2).
Setting the vacuum:
For setting the vacuum, the machine must be turned on.
!
Exercise caution in the vicinity of rotating shafts and rollers!
Hair, loose garments and jewellery may get caught!
SERIOUS INJURY MAY RESULT!
!
Do not get close to rotating shafts and rollers while the machine is
running and the noise-absorbing cover is open!
SERIOUS INJURY MAY RESULT!
!
Exercise caution in the vicinity of the perforating- and slitting knives!
They have sharp edges for proper function!
SERIOUS INJURY MAY RESULT!
Ł
Close the valve (2) for setting the minimum effect.
Ł
Start the machine.
Ł
Slowly open the valve (2) by turning the knob clockwise.
Observe the sheet separation while doing this.
At first no sheets are pulled off the stack or they are pulled off irregularily.
The more the valve is opened, the smoother is the paper transport.
Make sure that much vacuum does not cause feeding of double sheets.
Ł
Switch off the machine.