D 3.1 15
D_3.1_01_GB.fm 15-16
Adjustment of screed eccentric (o)
(104)
To pave thicker layers of material, if the
piston rods in the levelling cylinder are
operating close to their limit position and
if the desired paving thickness cannot be
reached, it is possible to alter the ap-
proach angle of the screen by adjusting
the eccentric.
- Pos I: Paving thickness of up
to approx. 7cm
- Pos II: Paving thickness of approx.
7 cm to approx. 14cm
- Pos III: Paving thickness above
approx. 14 cm
- The spindle (A) is not adjusted.
- Unfasten lock nuts (B) for eccentric adjustment.
- Swivel screed into desired position using lever (C) then engage the locking knob
once again.
A
If the levelling unit is connected to a height controller, this has the function of balanc-
ing out any rapid rise in the screed position: The levelling cylinders are extended until
the correct height is reached.
A
The change in approach angle can only take place slowly and uniformly on both sides
at once during paving operation, and involves the use of the eccentric adjustment.
Failing this, any rapid response in the screed could easily cause waves to appear on
the road surface.
The setting process should therefore take place before work starts!
Wetterhaus.eps
(o)
C
B
III
II
I
A
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