Dynapac PL 500/20 S, Operation & Maintenance Manual

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B 4
B
PL
500/
20S.
G
B 4-
20 -
04.
07
Milling depth control: milling depth control is performed hydraulically, and separate-
ly for each chassis leg.
To the left and right sides of the operator’s control station are two clearly legible mill-
ing depth indicators.
Traction unit, steering system, travel drive, brake: The suspension for both front
wheels takes the form of a parallel rocker arm arrangement which delivers an opti-
mum locating surface at all times.
The right-hand chassis leg can be swivelled in front of the milling drum.
The hydraulic all-wheel travel drive has continuously variable adjustment across two
speed ranges. The hydraulic travel drives are connected to the wheel hubs by means
of planetary gears. This ensures optimum feed and high gradeability.
A multi-disc brake on the rear wheels acts as brake.
Water system: The water system comprises a water spraying and cooling system.
The water spraying and cooling system operates in the low pressure range. This sys-
tem is used for cooling and jetting the milling bits.
The spray nozzles can be easily replaced.
The water tank has a high capacity and has good access for filling from the top.
Loading unit : The cold planer attachment is designed as a rear-loading unit and fea-
tures a one-piece load transfer system.
Final loading of material occurs from the upper conveyor to the transport container or
some other loading area outside the milling lane. The belt is wide and its transport
speed can be varied. As part of this process, the operating speed of the upper con-
veyor can be varied across an infinite range from zero to maximum setting.
The belt can then be changed quickly and easily.
The height of the upper conveyor can be adjusted hydraulically over a wide range of
heights and the conveyor can also be swivelled to quite a sharp angle on both sides.
The full-length cover substantially reduces the dust burden.
The upper conveyor can be dismantled / assembled very rapidly and can be erected
on four integrated legs.
As an option, a short version of this loading belt can be supplied which can be used
for applications such as the loading of material straight into the shovel on a wheel
loader.
Hydraulic system : The drive unit, actuator functions and steering system are oper-
ated by independent hydraulic circuits ideally suited to the machine.
Electrical system: 24 volt system with two in-line cold-start high-performance batter-
ies and a 3-phase alternator.
The power supply can be interrupted to ground/earth by the battery’s main switch.