User manual BOSCH NGU4151LY

[. . . ] Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control. If operating the power tool in damp locations is unavoidable a Ground Fault Circuit Interrupter (GFCI) must be used to supply the power to your tool. GFCI and personal protection devices like electrician's rubber gloves and footwear will further enhance your personal safety. [. . . ] Never attempt to operate this tool with one hand. The slip clutch engages if you firmly control the tool during a torque reaction or kickback. Always wear safety goggles or eye protection when using this tool. Use a dust mask or respirator for applications which generate dust. Safety goggles or eye protection will help deflect fragments of the material that may be thrown toward your face and eyes. Dust generated or gases released from the material you are cutting (i. Use thick cushioned gloves and limit the exposure time by taking frequent rest periods. Vibration caused by hammer-drill action may be harmful to your hands and arms. position the cord clear of rotating bit. Do not wrap the cord around your arm or wrist. If cord becomes entangled with the spinning bit it could entrap you causing serious personal injury. Reduce the risk of starting the tool accidentally. Disconnect the plug from the power source before making any assembly, Model number Shank style Maximum Capacities: Carbide tipped bits Thin wall core bits VARIABLE SPEED CONTROLLED TRIGGER SWITCH Your tool is equipped with a variable speed trigger switch. The tool speed can be controlled from the minimum to the maximum nameplate RPM by the pressure you apply to the trigger. Apply more pressure to increase the speed and release pressure to decrease speed. This accurate speed control enables you to drill without center punching. It also permits you to use as a power screwdriver. Bits are available for driving screws as well as running bolts and nuts. rEVERSING SWITCH LEVER This tool is equipped with a rotating brush reversing system. This results in longer brush life while maximizing power in both forward and reverse directions. The reverse switch can be operated from either the right or left side of the tool. NOTE: Tool will not operate in middle position. [. . . ] NOTE: The high efficiency available from the rotary hammers can only be obtained if sharp and undamaged accessories are used. The "cost" to maintain sharp and undamaged accessories is more than offset by the "time saved" in operating the tool with sharp accessories. all hammers require a short period of time to warm up. Depending on the room temperature, this time may vary from approximately 15 seconds (90°F) to 2 minutes (32°F). [. . . ]