Fayat Group DYNAPAC SD1800C, Manual, Page: 28 / 472

B 4
Engine:
The paver finisher is driven by a water cooled diesel engine. For further de-
tails see the technical data and the engine's instruction manual.
Drive unit:
Both caterpillar drives are directly driven by separate drives. They operate
directly, without any drive chains which require maintenance or servicing.
The tension of the caterpillar chains can be readjusted using tensioners.
A swivelling lane cleaner, which ensures an even passage during paving, is located
in front of each of the drive units. Small obstacles lying in the lane are cleared away
to the side.
Hydraulic system:
The diesel engine drives the hydraulic pumps for all main paver
finisher drives via the attached distribution gear and its auxiliary drive shafts.
Travel drive:
The continuously adjustable travel drive pumps are connected to the
travel drive engines by means of high pressure hydraulic hoses.
These hydraulic motors drive the caterpillar chains via planetary gears that are
mounted directly inside the drive units of the caterpillar chains.
Steering system/operator's platform:
The independent hydrostatic travel drives al-
low the paver finisher to be turned on the spot.
Electronic synchronous control ensures precise straight-ahead travel.
The seat consoles left/right can be moved beyond the outer edge of the vehicle, pro-
viding the driver with a better view of the paving area in this position.
The entire operating panel can be swivelled for operation beyond the outer edge of
the vehicle, and can be additionally be locked in several positions along the
control platform.
Push roller crossbar:
The push rollers for material trucks are fastened to a crossbar
that is pivoted at its centre. The paver finisher thus deviates less from its course and
paving in curves is made easier.
For adaptation to various truck design types, the push roller crossbar can be shifted
to two positions.
Push roller damping (
o
) hydraulically absorbs the shocks between the material truck
and paver finisher.