Hilti DS WS10, Operating Instructions Manual

Page: 32 / 68

6. Preparations at the workplace
Marking the cutting lines
The parts to be cut away are usually marked by the client.
If necessary, adjust the size and weight of the concrete
blocks to the prevailing conditions by making dividing
cuts (i.e. depending on the work order, the means of han-
dling the blocks, the crane or the maximum floor load-
ing capacity and size of doors).
Planning wire guidance and the cutting sequence
Thorough training and experience are essential for opti-
mum planning of the cutting sequence, the dividing cuts
and the wire guidance system.
A long wire contact length and a large cutting radius
results in reduced sawing performance.
The rule of thumb is: H = L
×
0.2
L
H
6.2
6.1
When the length of the cut L is 1.5 meters, the distance
H should thus be 0.3 meters (1.5 meters
×
0.2 = 0.3
meters).
When planning the wire guidance system, take care to
ensure that the length of wire in contact does not exceed
2 meters.
Arrange the cutting sequence so that the sawing wire
cannot become trapped by parts of the structure that are
cut away.
Examples of applications
Below you will find recommendations for the most com-
mon applications:
CAUTION
The recommendations for positioning the guide pulleys
and pulley stands shown in the examples in these oper-
ating instructions should be observed. Please consult a
Hilti wire sawing specialist before using other wire guid-
ance configurations.
6.3
Horizontal or vertical cut, 20–40 cm cutting length
Horizontal or vertical cut, 40–70 cm cutting length
32
Printed: 08.07.2013 | Doc-Nr: PUB / 5069736 / 000 / 01