31
6. Preparing the saw system for use
■
Install the water supply with a feed of at least 5 lt. /
min at a max. water pressure of 6 bar for the DS WS 15
drive, and connect it to the rear of the drive unit by way
of the quick-release couplings.
■
Lead 2 cooling water hoses from the front of the dri-
ve unit (close to the guide pulleys), by way of the quick-
release water couplings, to the cutting face where saw-
ing is taking place and connect them to the flexible water
supply nozzle and to the long water supply nozzle.
■
Turn the main switch at the control unit to ON. The
indicator lamp lights up green and the outflow water valve
at the drive unit closes automatically.
Note:
The red
ERROR warning lamp may possibly light up for approx-
imately 6 seconds, until the correct tension is reached.
■
Connect the compressor to the 230 V socket at the
control unit and switch it on immediately. As soon as the
compressor switches off automatically, i.e. when the
pressure tank is full, connect the compressed air hose
of the compressor and the control unit (one hose), and
then connect the control unit to the drive by means of
the 2 long compressed air hoses. The compressor restarts
automatically, when necessary.
■
Open the tap at the jobsite water supply. The water
does not yet flow through the machine to the water noz-
zles (water flows only when the cooling water is switched
on at the control unit).
■
The DS WS 15 drive unit has to be cooled even when
used for dry cutting applications (the diamond wire may
not have to be cooled when cutting brickwork). In envi-
ronments where temperatures are normal, as an alterna-
tive to connection to a fresh water supply, cooling can be
achieved by means of a submersible pump in a water reser-
voir of 30–50 litres. The cooling water can be returned to
this reservoir from one of the two water taps located at the
front of the drive unit, thus forming a closed circuit system.
■
Insufficient cooling water or a water temperature sig-
nificantly in excess of 20°C can lead to premature acti-
vation of the temperature protection control switch. The
motors then switch off automatically and the "Error”
warning lamp lights (see also "Error messages” section).
Rigging and tensioning the wire
■
Situation:
The length of the wire and the optimum
position of the drive has been fixed. The drive unit has
been set up at approximately the correct distance to the
structure to be cut. The wire has been fitted with wire
connectors.
6.7
■
Important: When the wire is threaded through, atten-
tion must be paid to correct direction of travel.
The forked piece of the wire connector must correspond
to the directional arrow on the wire. Should the arrow on
the wire no longer be visible, the direction of travel can be
determined from the diamond beads. The beads are slight-
ly conical in the direction of travel (narrow end ahead) and
the diamonds can be seen to have a “tail” that trails behind.
■
The wire running in the direction of tension from the
object being cut is always fed to the drive unit via the
lower guide pulley or, respectively, through the lower
hollow axle.
Important:
Always use the shorter free wire
length as the tension side! The system will then work
more efficiently, more safely and with reduced wire wear.
■
Feed the wire from the hollow axle of the lower guide
pulley of the drive
at the tension side through the pul-
ley guide mounted at the closer through-hole
and
then through the hole to the rear of the object being cut.
From there, the wire should return via the next previ-
ously-drilled through-hole
to the next pulley guide
from where it is then fed back to the slack side (wire
return side) of the drive unit
.
1
2
3
4
Important:
We recommend that the following procedure
is followed now, at the latest, before the two ends of the
wire are connected: The operators should pull the wire
through by hand, in both directions alternately in a “saw-
ing” motion, so that the wire already begins to cut slight-
ly into the object to be sawn. This procedure ensures
that the wire guides are secured correctly in position at
the object to be cut and that the wire is free to move when
sawing begins.
■
The operator should now twist the wire in a counter-
clockwise direction (looking towards the end face of the
wire or wire connector), applying about 1–1.5 turns per
metre. Finally, the two ends of the wire should be con-
Summary of Contents for DS WS15
Page 1: ...Operating instructions en DS WS15...
Page 26: ...26...
Page 38: ...38...
Page 42: ...42...
Page 48: ...48 8 Care and maintenance Pneumatic circuit diagram drive unit 8 7 Pneumatic circuit diagram...
Page 59: ...59...
