28
6. Preparing the saw system for use
Planning the wire guidance system
■
Before installing the wire saw, you must carefully
study the situation and plan the wire guides, the drilling
of through-holes, the sequence of the work and the pro-
cedure involved. You must also plan the cooling water
supply and, if necessary, waste water disposal.
■
Consideration must be given to safety aspects and
cordoning off to prevent access by third parties etc.
■
Secure the area, plan the removal and transportation
of the sawn-out sections of the structure and all other
necessary measures.
Positioning the wire guide pulleys
6.1
6.1.1
α
H
L
Rule of thumb : Pulley clearance H= 0.2 m per metre sawing length L
Sawing length L:
1,10
1,00
0,90
0,80
0,70
0,60
0,50
0,40
0,30
0,20
0,10
0,00
Pulley clearance H (metr
e)
Angle of obliquity of action
α
(
°
)
0
1 metre
2 metre
3 metre
4 metre
5
10
15
20
25
30
Wire pressure
6.1.2
90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0
Angle of obliquity of action
α
(
°
)
70
60
50
40
30
20
10
0
Contact pr
essur
e for
ce of the wir
e
(N) x 10
α
0
=90
°
α
1
=70
°
α
2
=20
°
α
e=0
°
F
F
F
F
Drilling through-holes for the wire
■
According to the situation, the material to be cut and
the amount of reinforcement in the concrete, a hammer
drill and long masonry drill bits or a diamond coring
machine mounted on a stand can be used to drill through-
holes. Depending on the thickness of the section to be
cut and the material involved, we recommend drill bits
of 16 mm, 37 mm, 67 mm or 102 mm diameter.
■
Depending on the application, you will also require
accessories and special solutions for drilling to greater
depths.
Setting up the electric supply
NOTE
■
The DS WS 15 wire saw will run even when the elec-
tric supply has only 4 conductors (1 earth/ground and
3 phases). However, the two 230 V supply sockets on
the control unit will provide no power if the neutral con-
ductor is missing. In this case it will be necessary to use
a separate 230 V supply cord for the compressor, lights
or a rotary hammer drill etc.
■
Ensure that the electric power supply has a fuse rat-
ing of at least 16 amps. A fuse rating of 32 amps is ide-
al. The jobsite power connection must be earthed/ground-
ed and equipped with a 30 mA ground fault circuit break-
er (PRCD). The earth connection and ground fault cir-
cuit breaker must be tested before the saw is operated.
6.2
6.3
Содержание DS WS15
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