User manual MAKITA DBM130

[. . . ] also wear a dust mask and thickly padded gloves. Prior to work starting, make sure that cutting accessory is fitted properly. Before starting work carefully check all screws for tightness. Due to vibration screws come loose and can cause serious breakdown or injury. [. . . ] When the thermal overload protection has worked, it is not possible to start the machine immediately after. It is only after some cooling time that the machine can be restarted. The time needed to be able to restart the machine will be vary to the overheating of the coil and the ambient temperature. acoustic warning: In case of overload , a continuis acoustic signal sounds. When this occurs, it is recommended to decrease the and/ or cool it down while rotaring without load. This is health protection, protection against soiling and a condition or optimal cutting conditions. Before all works at the machine, make sure that the plug is off the mains socket. Due to its design, the machine needs a minimum of care and maintenance. Nevertheless you should always observe the following: Keep the electric tool clean. Avoid any particle or part to penetrate inside the tool. If the machine is defect let carry out a repair only through an authorized service workshop. 2 Dry Drilling Only perform dry core-drilling on brickwork and soft lime or soft sand stones. We strongly recommend you to wear a face shield as well. employ suitable type of vacuum and which also have ample of suction power. Plentiful suction air offers additional benefit of cooling the core drill's body and free of dust, running more freely. Moving core drill slightly back every now and then during coring process will make dust extraction more effective. In doing so make sure not to tilt the core drill bit, as this will substantially shorten its useful life. Use solid pilot inserted into the core-bit until a starting groove about 5mm deep is cut. Then remove pilot bit, otherwise it will start overheating and become unnecessarily defective. Alternatively you can also use separate hammer drilling machine to make a pilot hole which then renders removal of the pilot from core bit unnecessary. There has to be enough water to flush all the residue out of the groove. a 100mm diameter core can require up to 5 lit/min of water supply. [. . . ] The optimum cutting speed is between 2 and 5 m/s. Should core-bit jam or there is no progress made when drilling, check to ensure that there is sufficient amount of diamonds present in the surface of segments. If this is not the case, replace the core-bit. Safety Switch Check RCD (Residual Current Device) daily, following enclosed instructions. [. . . ]