Hilti DSW 1510-CA, Manual

Page: 14 / 48

10 English 2238935
*2238935*
2.5.1 Description of the danger zone
The danger zone for wire saws includes zones
in which:
•
(A) Persons could be hit by a whipping
diamond wire.
• (B) Persons could be hit by flying parts.
2.5.2 Danger zone A (shown here colored yellow)
Protection against whipping diamond wire.
In principle, you must assume that the diamond wire can break at any point. If this
happens, the free ends of the wire can be deflected in any direction at the next relay
point (in the direction of pull)of the sawing wire.
Notes for safe working practice:
• Keep a safe distance in all directions away from the relay points. The safe distance
should be at least twice the radius of the length of sawing wire that can whip free in
the event of a wire break.
• Invariably, work only when wire guides are mounted on the object to be cut. This
precaution reduces the length of wire that can whip free and makes the danger zone
considerably smaller.
•
Avoid presence in the danger zones! Make sure that no-one enters the danger
zones!
2.5.3 Danger zone B (shown here colored gray)
Protection against flying fragments.
In regular operation and in the event of a wire break, parts (e.g. fragments splintered off
the structure or shattered cutting beads from the wire) can be flung out at high energy
in the diamond wire's direction of pull. In principle, this is a risk that originates from
every free length of wire. The danger zones, therefore, consist of additional corridors that
extend in the direction of pull along the free lengths of sawing wire and beyond.
Notes for safe working practice:
• Unless additional safety measures such as protective paneling, protective curtains or
sawing-wire guards are installed to stop flying fragments, these corridors are unlimited
in length.
• Whenever possible, use the tubular guards for exposed lengths of sawing wire.
•
Never pass through the hazard corridors while the wire saw is in operation!
2.6 Requirements to be met by operating personnel
Only specialists who have received training in concrete cutting techniques are permitted
to operate the wire saw. These persons must be completely familiar with the content of