Hilti DSW 1510-CA, Manual

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30 English 2238935
*2238935*
8.3 During operation of the wire saw
DANGER
Serious injury hazard! Risk of injury due to entry into the danger zone or unforeseen
situations.
▶
Press the EMERGENCY STOP button immediately if a dangerous, unforeseen or
critical situation arises (e.g. if the diamond wire jumps off a guide pulley or if a person
enters the danger zone).
▶
Before entering the danger zone, always press the EMERGENCY STOP button or the
ON/OFF switch on the remote control unit.
While the saw is in operation keep well clear of the danger zone and monitor:
• Danger zone
• Wire guidance and possible vibrations
• Cutting parameters (current input, advance pressure and wire speed) on the display
• Water cooling at the diamond wire
if the diamond wire vibrates excessively during operation, check the alignment of
the guide pulleys and, if necessary, change wire speed and advance pressure.
Toward the end of the cut the arc followed by the wire becomes flatter, with
corresponding reductions in the diamond wire’s contact pressure and cutting
performance. If necessary, compensate this by increasing advance pressure or by
adjusting wire guidance so that the wire cuts in a tighter arc.
Cutting speed guide values (concrete)
Select an advance pressure level at which the current power level is in the range
80-100%.
Operating mode Recommended cutting speed
Wet 66 ft/s …92 ft/s
(20 m/s …28 m/s)
Dry 33 ft/s …49 ft/s
(10 m/s …15 m/s)
Notes on cooling of the diamond wire
Operating mode Cooling Comment
Wet approx. 5-8 liters of
water per minute
Adjust the water spray nozzles if dust
develops.
Dry Air cooling
The longer the diamond
wire, the more effective
air cooling will be.
Make sure that the diamond wire does
not get too hot. If necessary, use a
suitable dust extractor to cool the
diamond wire.