Dynapac PL 500/20 S, Operation & Maintenance Manual

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D 9
D
PL5
00/
20S.
G
B 9-
1
16 -
04.
07
Item Designation Brief description
24
Pressure regula-
tor relief pressure
Moldboard
To regulate pressure for scraper relief
To set the pressure at which the moldboard slides over
the milling lane.
The pressure setting determines the extent to
which the milling lane is cleared of milling de-
bris.
The pressure setting can be read off the „scrap-
er relief pressure gauge“.
25
Speed governor
on upper convey-
or
Used to adjust the discharge rate for mill material to
prevailing conditions (quantity of material involved, de-
livery speed).
This adjustment can also be made while the milling op-
eration is running.
Ensure that no mill material accidentally gets
„slung“ from the upper conveyor!
26
Engine speed
setting device
Continuously variable engine speed setting (if drive le-
ver is extended).
Min. setting: idle speed
Max. setting: nominal speed
Automatic speed control keeps the set speed
constant, even when under load.
27
Preselection con-
troller
Travel drive
For setting the maximum speed that can be reached
when the drive lever is at its stop.