User manual HILTI DD-EC-1

[. . . ] DD EC-1 D GB F I NL E P DK SF N S Bedienungsanleitung 1­ 9 Operating instructions 11­19 Mode d'emploi 21­29 Istruzioni d'uso 31­39 Gebruiksaanwijzing 41­49 Manual de instrucciones 51­60 337334 *337334* 1 » DD EC-1 ´ ¾ µ¿ ¶² º 2 3 DD EC-1 DD EC-1 4 5 6 7 8 9 0 150 300 0 150 300 10 11 1 2 DD EC-1 DD EC-1 12 5 3 4 DD EC-1 13 0, 5mm 14 15 DD EC-1 DD EC-1 16 17 1 2 3 C-1 DD E 18 5 4 C-1 DD E 19 Pos. 2 20 21 22 23 DD EC-1 DD EC-1 diamond core drilling machine It is essential that the operating instructions are read before the tool is operated for the first time. Always keep these operating instructions together with the tool. Ensure that the operating instructions are with the tool when it is given to other persons. [. . . ] ­ From above, insert the cutting edge of the core bit into the water collector sleeve . 0 l/min. This operating mode is used for special applications. ­ Before beginning drilling, adjust the water regulation wheel to the middle position of its range 1­3. ­ Carefully bring the water collector into contact with the surface where the hole is to be drilled. ­ The core bit can be exactly positioned by bringing the centring marks on the water collector into alignment with a cross marked at the position where the hole is to be drilled . ­ To begin drilling, press the control switch before the core bit has been brought into contact with the base material. ­ Begin drilling the hole only when the water flow indicator shows that water is flowing through the core bit . ­ Press the core bit gently against the base material. ­ Take care to ensure that the core bit is perpendicular to the base material. The pressure applied to the core bit should be regulated so that the tool continues to run at its highest speed. Application of higher pressure does not increase the rate of drilling progress. Do not tilt it at angle as this may result in reduced drilling performance. Always ensure that the tool continues to run at a high speed. ­ Immediately after beginning drilling, check the water flow rate indicator to ensure that water is flowing (water flow rate is within the optimum range when the red and white segments of the rotating wheel are still individually discernible). Always keep an eye on the water flow rate indicator while drilling. Insufficient water may cause the core bit to stick in the hole, resulting in damage to the core bit. It may be necessary to adjust the water flow rate manually while drilling by turning the water regulation wheel . ­ Switch off the tool after reaching the desired drilling depth or when the hole has been drilled right through and, at the same time, pull the core bit out of the hole. ­ When drilling in bypass mode, bring the water regulation wheel (3) back to the zero position. ­ The water collector should be lifted away from the base material only when the core bit has stopped rotating. If the water collector is lifted away from the base material while the core bit is still rotating, there is a risk of injury as the core may be thrown out of the bit. Additional instructions for drilling using the DD-REC1 water recycling unit ­ Read and observe the information printed in the DD-REC1 operating instructions. [. . . ] by adding a large quantity of water or other neutralisation agents) before it is allowed to flow into the sewerage system. 18 Troubleshooting Fault Machine doesn't start Possible cause Fault in mains supply Supply cord or plug defective Switch defective Motor runs but the core bit doesn't rotate. Rate of drilling progress decreases Gearing defective Water pressure/water flow rate too high Core bit connection end dirty or not properly engaged Core bit defective Gearing defective Core bit cutting edge polished The motor cuts out. Thermal (overheating) cutout is activated. Electronics defective Cooling fan defective No flow of water when operated in automatic mode Filter or water flow indicator blocked Magnet valve defective Filter or water flow indicator blocked Water swivel shaft seal defective Chuck operating lever not fully open Core bit connection end or chuck dirty or damaged Core bit connection end or chuck dirty Chuck seal defective Solution Plug in another electric appliance and check whether it works. [. . . ]