6
Aerial work platform
B-LIFT 18 HV
COD. UM0287_GB | REV. 00 | ED: 09/18
GB
Chapter 5
SAFETY DEVICES
5.9
Maximum pressure valve
The maximum pressure valve (Fig. 5.6, 1), located behind the vehicle stabilization control panel,
prevents the maximum working pressure from being exceeded.
1
2
Fig.
5.6
5.10
Blocking valves on cylinders
The blocking valves are hydro-powered and if there is a lack of pressure (e.g. due to breakage of a
delivery pipe) they prevent the uncontrolled movement of the corresponding cylinder.
The on/off (Fig. 5.7)
blocking valves are located:
•
At the top of the stabilizers (2)
while the overcentre valves are positioned:
•
Next to the turntable (1).
•
on the boom lifting cylinder (4).
•
On the telescopic boom lifting cylinder (5).
•
On the telescopic boom extension cylinder (6).
•
On the work platform (3).
5
6
3
2
1
4
Fig.
5.7
