Hilti DSW 1510-CA, Руководство пользователя, Страница: 26 / 48

22 English 2238935
*2238935*
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When working outdoors, use only extension cables that are approved and corre-
spondingly marked for this application.
Recommended minimal gauge (conductor cross section) and maximum exten-
sion cable length
Extension cable AWG 12 AWG 10 AWG 8 AWG 6
Conductor cross sec-
tion
3.3 mm² 5.3 mm² 8.4 mm² 13.3 mm²
Conductor cross sec-
tion
6.53 kcmil 10.4 kcmil 16.5 kcmil 26.3 kcmil
Extension cable length <60 m >60 ...
<100 m
>100 ...
<160 m
>160 ...
<260 m
Extension cable length <200 ft >200 ...
<330 ft
>330 ...
<530 ft
>530 ...
<850 ft
The figures apply at an ambient temperature of below 30 °C (86 °F).
6.6 Requirements to be met by the cooling water supply
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At cooling-water temperature of 20 °C, a flow rate of approx. 5 l/min is required to
cool the drive.
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The wire saw’s automatic shutdown trips if cooling is inadequate.
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Use only clean water. Do not use salty water (such as seawater, for example).
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Where pressure in the water supply line is low, a non-return valve should be fitted in
order to prevent dirty water finding its way into the water supply.
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Use a pressure reduction valve if the line pressure is too high (above 6 bar).
7 Before use
7.1 Location and connections
7.1.1 Requirements to be met by the set-up location
A basic prerequisite for safe and efficient use of the saw system is that it must be
secured using a means of fastening suitable for the applicable material and of adequate
dimensions. Set up the drive unit only on a flat and level surface.
The drive unit can shift in the direction of the tension on the wire if the wire jams while
sawing is in progress. Use anchors at the supporting feet or a ratchet strap to prevent
inadvertent movement of the drive unit. Whenever possible, set up the drive unit in such
a way that the lengths of wire released by a wire breakage are as short as possible.
Correct and incorrect set-up of the drive unit
Consider the following requirements when you evaluate the suitability of the site for
positioning the drive unit: