Fayat Group DYNAPAC SD2550C, Operating Instructions Manual

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B 7
Crossbeams / screed lifting device:
The screed lifting device is used to lift the
screed during transportation. The screed's approach angle can be changed using the
eccentric adjustment facility on the crossbeam.
Depending on the paving condition requirements, the crossbeam can be moved
backwards or forwards. This adjustment enlarges the material space between the au-
ger and screed.
Automatic paving stop and screed charging/relieving:
The automatic paving
stop prevents the formation of any screed marks caused by a stopped screed.
When the paver finisher stops (during a truck change), the screed remains in floating
position and relief pressure is applied, thus preventing the screed from sinking
while stationary.
The screed relieving device puts a higher load on the traction unit, thus increasing
the traction.
Activating the screed charging device can improve the compacting result under dif-
ferent paving conditions.
Asphalt fume control system (
o
):
An extraction system installed in the material
tunnel extracts and discharges asphalt fumes.
Central lubricating system (
o
):
The central lubrication pump fitted with a large lu-
bricant tank supplies grease to the various lubrication circuits through various flow di-
viders. They supply lubricant to the service-sensitive points of lubrication
(e.g. bearings) at adjustable intervals.