56
HYDRAULIC WINDSHIELD SYSTEM HWS
carried out which might entail the hazard of falling
objects.
Access to and between platforms is ensured
exclusively by ladders installed for this purpose.
After having accessed a platform, the ladder hatch
must be closed. All ladders should project 1m above
the platform to which they provide access.
Spread sawdust or sand on any slippery surface
caused by spilling (of hydraulic fluid, release agent,
etc.).
Avoid heavy impacts on working platform or
plywood. It is strictly forbidden to jump on platforms
or plywood, to abruptly unload material or letting it
fall from height onto the platforms.
If the building site is located nearby high voltage
power lines, it is recommended to work without
power supply. If this is not possible, the appropriate
measures according to the respective reference
standard should be taken.
Under adverse weather conditions, works on the
building site should stop.
Under heavy wind conditions, remove materials and
other objects from the platforms, and check the
stability of all ties, meshes, platform anchorages,
etc. before and afterwards.
Before starting the dismantling procedure, check
that all structural components (e.g. ties) are in place.
If not, revise the assembly before proceeding with
stripping/dismantling.
Furthermore, check that no loose material remains
on the structure, e.g. on working platforms, in
danger of falling from it, and striking persons below.
The following measures must be taken to restrict
access to the structure during erection and
dismantling or whenever the structure is not in
correct working conditions (e.g. missing collective
protection):
signposting,
fencing,
closing
or
demarcation with straps, barriers or meshes of the
working area and third-party passageways.
Employees and any third party accessing a structure
without collective protection yet in place, must wear
all indicated PPE to prevent falls from height or to be
protected from falling objects.
The purchaser or lessee of the structure shall
instruct its employees on all necessary guidelines for
the safe operating of the structure.
Any alterations of the structure must be executed
under the supervision of a competent person and
must comply with instructions in the operating
manuals of the manufacturer or distributor.
The purchaser or lessee shall conduct periodic
checks of the assembly to verify the correct
installation of critical structural elements and to
identify the potential withdrawal of parts or the
alteration of the structure as such by employees or a
third party.
A fire extinguisher shall be at hand near the control
panel of each hydraulic power unit.
6.1.2.
LOAD CASES
The following load cases are identified for the HWS sets:
Working Condition:
Unloading works can be done.
These jobs can only be done when the wind speeds
are below 100 km/hr.
Climbing:
The whole assembly is being lifted. Lifting
jobs can only be done when wind speeds are below
72 km/hr.
Out of service
: Situation in which the maximum
allowable wind speed of 100 km/hr has been
exceeded.
When facing an “Out of Service” case, the
customer is responsible to take the following preventive