[. . . ] WARNING: DO NOT let comfort or familiarity with product (gained from repeated use) replace strict adherence to safety rules for the subject product. MISUSE or failure to follow the safety rules stated in this instruction manual may cause serious personal injury. 1) CAUTION: • Hold the tool and the battery cartridge firmly when installing or removing battery cartridge. Failure to hold the tool and the battery cartridge firmly may cause them to slip off your hands and result in damage to the tool and battery cartridge and a personal injury. [. . . ] When the reversing switch lever is in the neutral position, the switch trigger cannot be pulled. CAUTION: • Always check the direction of rotation before operation. € Use the reversing switch only after the tool comes to a complete stop. Changing the direction of rotation before the tool stops may damage the tool. € When not operating the tool, always set the reversing switch lever to the neutral position. Torque limiter The torque limiter will actuate when a certain torque level is reached. CAUTION: • As soon as the torque limiter actuates, switch off the tool immediately. 4) This tool has a reversing switch to change the direction of rotation. 5) CAUTION: • Before removing the quick change chuck for SDS-plus, always remove the bit. Grasp the change cover of the quick change chuck for SDS-plus and turn in the direction of the arrow until the change cover line moves from the symbol to the symbol. Grasp the change cover of the quick change drill chuck and turn the change cover line to the symbol until a click can clearly be heard. ASSEMBLY CAUTION: • Always be sure that the tool is switched off and the battery cartridge is removed before carrying out any work on the tool. Install the side grip so that the protrusion on the grip fit in between the grooves in the tool barrel. Bit grease Coat the bit shank head beforehand with a small amount of bit grease (about 0. , depress the lock button and rotate the action mode changing knob to the symbol. 8) For drilling in wood, metal or plastic materials, depress the lock button and rotate the action mode changing knob to the m symbol. 9) For chipping, scaling or demolition operations, depress the lock button and rotate the action mode changing knob to the symbol. CAUTION: • Do not rotate the action mode changing knob when the tool is running. [. . . ] Instead, run the tool at an idle, then remove the bit partially from the hole. By repeating this several times, the hole will be cleaned out and normal drilling may be resumed. CAUTION: • There is a tremendous and sudden twisting force exerted on the tool/bit at the time of hole breakthrough, when the hole becomes clogged with chips and particles, or when striking reinforcing rods embedded in the concrete. Failure to do so may result in the loss of control of the tool and potentially severe injury. [. . . ]