horsch Leeb 5.280 VL, Operating Instructions Manual

Page: 59 / 308

Hydraulics
WARNING
Accidental hydraulic movements (e.g. caused by
passengers, children or air in the hydraulic sys-
tem) can lead to severe accidents and injuries!
¾
Secure or lock the control units on the ma-
chine.
¾
Instruct persons to leave the slewing range of
foldable machine parts.
¾
Switch all control units to the locked position
before switching on the machine again.
¾
Connect the hydraulic lines only when the hy-
draulics are without pressure on the machine
side. All connections must have been tightened
before commissioning.
¾
When searching for leaks, never use your
fingers to locate oily spots on hydraulic com -
ponents.
¾
Vent the hydraulic system!
NOTE
¾
Operate the machine with mineral oils.
Do not mix mineral oils with organic or ester
oils!
The hydraulic circulation of the machine must
contain mineral-based hydraulic oil.
¾
Oil purity acc. to ISO 4406: 18/16/13
¾
Always connect all hydraulic lines! Otherwise
components may get damaged because of
interrelated functions.
¾
Ensure cleanliness and tight fit of all plug-and-
socket connections!
¾
With all hydraulic movements slow down the
control unit before the machine components
reach the stop position.
¾
Observe the notes on hydraulics and pressure
accumulator in chapter Safety and responsibility !
NOTE
The hydraulic cylinders must be filled again
with hydraulic oil after carrying out installation
work on the hydraulic system. This is done by
selecting all hydraulic functions several times.
Hydraulic cylinders must extend and retract
without jerking.
¾
Danger zones must be blocked off during
commissioning.
¾
When performing installation work, raised
machine parts must be lowered completely,
moved to a safe position or secured at the
particular height by suitable means.
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