1 692 846 001
2017-04-27
|
Beissbarth GmbH
Obligations of the plant operator | VLH 4440 | 33
en
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).
5.8.5
Operating unit
Fig. 8:
Operating unit
No.
Designation
Function
1
"Lift"
button
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.
2
"Lower"
button
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.
3
"Lowering in
hazard zone"
button
Lowers the runway to the bottom
end position. A warning signal
sounds.
4
Light switch
On/off switch for optional lighting.
5
"Set down" button Sets down the cross members
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.
6
Signal generator
Acoustic warning signal. Sounds in
the following cases:
R
Lowering in hazard zone
R
During fault rectification (lifting/
lowering with bypass switch)
7
Master switch
Lockable ON/OFF switch with
Emergency Stop function.
