TYROLIT Hydrostress HBH534 series, Safety & Operator Manual

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Safety & Operator Manual Hydraulic Hand Saw HBH534***
14 10984829 EN / 28.08.2007
Fig. 2 Define the sequence of cuts
For floor cutouts the cutout blocks must be supported with suitable building material or
suspended and secured on a crane or other suitable lifting apparatus with sufficient load-
bearing capacity.
4.3.2.4 Secure danger area
Danger areas with wall cuts
The danger areas must be marked out and secured. During sawing operations no
persons should remain in these danger areas. It is just as important to secure the rear of
the danger area. Individual concrete splinters or cutting tool segments may come loose
and be projected.
4.3.2.5 Securing cutouts
Before commencing the sawing activities the structural blocks to be cut out must be
secured against falling out in the case of a wall cutout, or against falling down in the case
of a floor or ceiling cutout.
Example: Securing by supporting from below
Another way of securing the structural blocks to be removed during floor cutouts is to
support them from below with the help of timber and structural supports.
Removal of the structural blocks can take place later as follows:
•
lifting down with the help of a fork-lift truck
•
lowering down with the help of a block and tackle
4.3.2.6 Carry out a guide cut / pre-cut
Definition Guide
cut: Cut for blade guide
(Cut depth max. 10 % of the blade diameter no
reinforcement)
Pre-cut: The pre-cut is performed with a small blade diameter
and possibly with a wider segment width (never less
than the width of the segments on the 534mm blade!)