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Hilti DSW 1005E Manual page 16

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Use of the wire saw for purposes other than wire sawing is strictly prohibited, e.g. the
saw may not be used a means of transport or as an improvised lifting winch.
The machine is suitable for wet and dry cutting. A dust removal system must be used for
dry cutting. Special dust hoods are available on request.
The equipment may be lifted by crane only at the lifting points provided.
Do not cut materials in which the cutting process may produce hazardous or explosive
dust or vapors.
Do not cut easily flammable materials.
3.5 Drive principle
The sawing wire is passed round the object to be cut, over guide pulleys and round the
drive wheel, forming an endless loop when the ends of the wire are connected together.
Rotation of the drive wheel sets the endless loop in motion and linear movement of the
drive unit causes the sawing wire to be drawn through the object as cutting progresses.
3.6 Saw advance and wire storage
Wire advance works according to the block and tackle principle. The advance movement,
causing the wire to be drawn in, is achieved by the wire storage pulleys being pushed apart
by a pneumatic cylinder. Accordingly, the drive unit is mounted on a moving carriage.
The length of wire that can be stored in the machine depends on whether the wire is rigged
around one or two sets of pulleys and whether the optional wire store extension is used.
3.7 The functions of the wire guidance system
With the aid of the adjustable pivoting pulleys, the line of the sawing wire between the
machine and the pivoting pulley mounted on the object to be cut can be brought exactly
into alignment. In flush cutting applications, the pivoting pulleys can be allowed to pivot
freely with the wire as the distance between the wire entry and exit points decreases
while the cut progresses.
3.8 Guards or protective covers
Guards must be fitted before the wire saw is operated and the guards must remain fitted
during the entire period the machine is in operation. Check that the guards or covers are
fitted correctly before beginning the work.
If fitting guards is not possible, it is essential to ensure that no one enters or remains in
the danger area during operation of the equipment.
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English

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