Operator's Manual
3950 Series FD 3950PF
28
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Adjust the automatic height setting as follows:
The left hold-down bracket (1) also serves as
a height sensor controlling the height adjust-
ment of the rear edge separator.
As a result, the gap between the suckers and
paper stack remains always the same although
sheets are pulled off continuously.
The basic position can be changed by means
of a knob (2).
A scale (3) facilitates the adjustment.
Increasing the gap: Move indicator to the plus-range "+".
Reducing the gap:
Move indicator to the minus-range "-".
Basic setting:
Sucker cups should be 1-2 mm above the paper stack
(with air turned off).
1
2
3
Adjusting the
Stripper Springs
The stripper springs (4) should reach about
2 mm into the stack to prevent double sheets.
The position of the springs can be adjusted
by means of a thumb screw (5).
- Turn the thumb screw counter-clockwise:
Springs move away from the stack.
- Turn the thumb screw clockwise:
Springs move into the stack.
5
4
If double sheets occur, the stripper fingers must be adjusted in such a way
that they reach further into the stack.
Making the Sucker
Cups Inoperative
For short formats it is often advantageous
to work without rear edge separators.
In this case the sucker cups can be made
inoperative.
6
6
7
7
Ł
Move the sucker cups to the top position (6).
Ł
Push the lock lever (7) backwards. This will
lock the sucker cups in the top position.
Ł
Switch off the automatic height setting
mechanism.
Now the air continuously separates the sheets
from the rear edge.
