schmersal bp408, Installation Manual

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10 Installation manual of system “bp408” - Safety instructions
5.4 Assistance by another person
If a fitter is performing an activity, which requires the presence of another person,
this person must be an expert or trained in hazards.
…
5.5 Implementation of work
5.5.1 Entering and leaving the car roof
The car roof may be entered only in the presence of experts. Before entering the
car roof, the emergency brake switch (“emergency stop”) and, if accessible, the
inspection switch on the car roof must be switched on and their functioning checked.
The shaft doors may be closed only after the inspection control system is switched
on. The functioning of the emergency brake switch and the inspection switch is
checked, e.g. by closing the doors and enabling the hall call. The lift must not move
in the process.
Before leaving the car roof, the effectiveness of the shaft door contact with the exit
doors must be checked, the emergency brake switch enabled and after opening
the shaft door the inspection switch must be unlocked again. The emergency brake
switch may be unlocked again only after leaving the car roof.
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5.5.2 Shaft lighting
Before beginning work in the shaft, sufficient lighting must be ensured, e.g. switch
on the shaft lights and carry along a network-independent light.
5.5.3 Stay and drives in the shaft
There should not be more people on the car roof and more material must not be
taken along than is necessary for carrying out the work. Load-bearing capacity and
usable area must be kept in mind. Driving on the car roof is permissible only when
there is no one present in the hazard zone.
It is forbidden to carry out work during the drive. Inspections (visual inspections)
are only permissible during downward drives. There is a danger of crushing during
upward drives, e.g. at counterweights and shaft fittings (see section 5.2.5.7 DIN
EN 81-20).
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5.5.4 Electrical hazard
After the main switch is switched off, voltage may remain in various equipment and
components of the lift.
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5.5.5 Bridging of safety equipment and control lines
It is strictly forbidden to bridge safety equipment, control lines and the switches. If
it is not possible to avoid bridging in order to carry out work, it may be done only if:
- the person carrying out the work is trained in it
- the bridges are suitable and clearly recognisable for everyone.
…
The bridges must be removed immediately after the work is completed.