TYROLIT Hydrostress HBH534 series, Safety & Operator Manual

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Safety & Operator Manual Hydraulic Hand Saw HBH534***
12 10984829 EN / 28.08.2007
Sawing Information:
This checklist is intended solely to provide a better overview of the sequence in which the stages
of the work should be carried out. It is merely information for general cutting. It is the operator’s
responsibility to be familiar with the proper action to saw concrete and solid structures in general.
4.3.1 Process
checklist
1. Approval from the supervision of works
Before any work commences the approval of the supervision of works must be
obtained. The following points must be clarified:
•
Are their static concerns about the building structure?
•
Are electrical lines laid in the wall or ceiling (floor)?
•
Are sanitation lines laid in the wall or ceiling (floor)?
•
Have loose parts been left in the wall or ceiling (floor)?
•
At what depth are any longitudinally running reinforcements?
2.
Mark out cut
The cut to be made must be marked out. In doing so the size and/or the weight
of the structural blocks must be taken into account.
3. Determine cutting sequence
In principle, for a wall cutting for example, first the bottom, then the side and
only at the end the top, cuts must be performed.
4.
Secure danger area
Before starting work the danger areas must be secured
5.
Secure structural blocks
Before sawing work commences the structural blocks must be correctly
secured from the structural engineering point of view. It must be ensured that
the structural blocks neither overturn nor fall out or down and that they cannot
displace.
6. Carry out a pre-cut / guide cut
Before the cut itself a pre-cut / guide cut should be made. This will ensure that
the cutting tool (saw blade) does not drift.
7. Sawing,
etc.
Now the cuts must be performed in the order envisaged. For each new cut
steps 4 to 9 must be repeated. If necessary, steel wedges are used to secure
the cut concrete.
8.
Removal of the structural blocks
Removal of the structural blocks is dangerous and therefore particular care is
called for. It must in particular be ensured that no persons remain in the danger
areas and the securing and suspension or crane apparatus are adequately
designed for the load to be held or lifted.
9.
Disposal of sawing sludge
If necessary the sawing sludge must be disposed of according to the normal
local environmental regulations. The sawing sludge contains all the materials
that have been sawn through.