Dynapac PL2000S, Operating Instructions Manual

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B 9
B PL
2000.
G
B
9-
34
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10.
01
Loading unit: The cold planer is designed as a front loader and has a dual-section,
wide-belt loading system. The lower conveyor located under the machine receives
the material released and ejected by the milling drum and conveys it to the front upper
conveyor.
Wide gravel funnels ensure a clean transfer. Via the upper conveyor, the milled pro-
duct is finally loaded onto a means of transport or its support outside the cutting track.
Both conveyors are wide and have conveyance speeds which can be set in both for-
ward and reversing mode. Their maximum values can be pre-selected depending on
the material in question. Here, the speed of the upper conveyor can be gradually ad-
justed from zero to maximum when in operation. The speed of the lower conveyor au-
tomatically changes in proportion to the speed adjustment of the upper conveyor.
All belt changes can be simply and rapidly performed.
The lower conveyor is positioned on a sliding shoe to protect it from wear. This shoe
also serves as a compression device and prevents lumps from breaking up on the
cutting surface. Spraying the inside of the belt with water prevents it from sticking to
the asphalt granulate
The upper conveyor with hydraulic height adjustment has a large loading height and
can be swivelled by 45° on both sides. The level of dust contamination is noticeably
reduced through the use of the complete cover available.
As an option, the upper conveyor can be folded in for simpler transport.
Hydraulic system: The various operating functions of the cold planer are conducted
using several, independent hydraulic circuits with a clear pipework system, predomi-
nantly permanently installed piping and short sections of hose connection.
All hydraulic pumps are driven centrally by a pump drive in turn driven by the diesel
engine.
The following ensure that the entire hydraulic system is kept perfectly clean:
- a large return suction filter, fitted in the hydraulic oil tank, for the drive circuits of the
traction unit, loading belt, fan and water system as well as for the drives of the cyl-
inder adjustment functions;
- two pressure filters, fitted in front of the milling drum housing, on the right under the
machine and easily accessible from the outside. In the drive circuit for height ad-
justment and steering, these are switched between the load-sensing adjustment
pump and the hydraulic control blocks.