Hydraulic Unit; Operating Unit - Beissbarth VLH 4440 Manual Original

5.8.4

Hydraulic unit

Fig. 7: Hydraulic unit (without cover)
1 Securing bolts for cover
2 Electric motor
3 Pressure limiter (beneath protective cap)
4 Hydraulic fluid filler neck
5 Emergency lowering screw (beneath protective cap)
6 Hydraulic fluid tank
7 Flexible hose (houses wiring, a pneumatic pipe and
a hydraulic pipe)
The hydraulic unit is permanently attached to the
control column. The cover can be detached after
slackening off the securing bolts (1). A pressure
limiter (3) safeguards the hydraulic system against
excess pressure. In the event of power failure, the
lifting platform can be lowered manually by way of an
emergency lowering screw (5). The lines to the runway
are protected against mechanical damage by a flexible
hose (7).
Beissbarth GmbH
Obligations of the plant operator | VLH 4440 | 33
5.8.5

Operating unit

Fig. 8: Operating unit
No. Designation
1 "Lift"
button
2 "Lower"
button
3 "Lowering in
hazard zone"
button
4 Light switch
5 "Set down" button Sets down the cross members
6 Signal generator
7 Master switch
Function
The runway moves upwards for
as long as the button is pressed.
Movement is stopped in the
following cases:
R Button is released.
R Upper limit value is reached.
The runway moves downwards for
as long as the button is pressed.
Movement is stopped in the
following cases:
R Button is released.
R Foot protection safety level
(120 mm) is reached.
R Lower limit value is reached.
Lowers the runway to the bottom
end position. A warning signal
sounds.
On/off switch for optional lighting.
in the locking rails of the lifting
columns. Press and hold the
button until all four cross members
are resting firmly on the locking
rails.
Acoustic warning signal. Sounds in
the following cases:
R Lowering in hazard zone
R During fault rectification (lifting/
lowering with bypass switch)
Lockable ON/OFF switch with
Emergency Stop function.
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1 692 846 001 2017-04-27
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