User manual MAKITA DBM080

[. . . ] Keep hands well away from rotating parts. Keep sure footing and body balance at all times for better control of reaction torque. For longer machine use, wear hearing protectors. Likewise it is recommended to wear safety helmet, safety glasses and/or face shield. [. . . ] The time needed to be able to restart the machine will be vary to the overheating of the coil and the ambient temperature. This is for health protection, protection against soiling and a condition for 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. If using pressurised water container, make sure it will deliver the required amount. starter hole guides and drill rigs assist accurate starts and guidance. These are also available with a water collecting facility. If neither starter hole guide nor drilling rig are available, use wooden template to ensure drilling starts in the proper place. [. . . ] 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. Make sure to use it as for any submerged pump or similar where RCD or FI-Box are a must. [. . . ]