[. . . ] If operating a power tool in a damp location is unavoidable, use a ground fault circuit interrupter (GFCI) protected supply. Stay alert, watch what you are doing and use common sense when operating a power tool. Do not use a power tool while you are tired or under the influence of drugs, alcohol or medication. A moment of inattention while operating power tools may result in serious personal injury. [. . . ] If you use this tool unsafely or incorrectly, you can suffer serious personal injury. Hold power tool by insulated gripping surfaces, when performing an operation where 3 4. Cutting accessory contacting a "live" wire may make exposed metal parts of the power tool "live" and could give the operator an electric shock. it is also highly recommended that you wear a dust mask and thickly padded gloves. In cold weather or when the tool has not been used for a long time, let the tool warm up for a while by operating it under no load. Do not touch the bit or parts close to the bit immediately after operation; they may be extremely hot and could burn your skin. CAUTION: Always be sure that the tool is switched off and unplugged before adjusting or checking function on the tool. MISUSE or failure to follow the safety rules stated in this instruction manual may cause serious personal injury. Switch can be locked in "ON" position for ease of operator comfort during extended use. apply caution when locking tool in "ON" position and maintain firm grasp on tool. To start the tool, push the switch lever "ON (I)" on the left side of the tool. Volts amperes hertz alternating current Class II Construction revolutions or reciprocation per minute number of blow The blows per minute can be adjusted just by turning the adjusting dial. Refer to the table below for the relationship between the number settings on the adjusting dial and the blows per minute. Blows at no load per minute becomes smaller than those on load in order to reduce vibration under no load, but this does not show trouble. Once operation starts with a bit against concrete, blows per minute increase and get to the numbers as shown in the table. When temperature is low and there is less fluidity in grease, the tool may not have this function even with the motor rotating. CAUTION: The speed adjusting dial can be turned only as far as 5 and back to 1. Do not force it past 5 or 1, or the speed adjusting function may no longer work. The side handle can be swung 360° on the vertical and secured at any desired position. It also secures at eight different positions back and forth on the horizontal. Slide the side handle back to the rear groove and secure it with the clamp nut. If the indicator lamp does not light up, the mains cord or the controller may be malfunction. [. . . ] CAUTION: Be careful not to damage the connector or lead wires especially when wiping out the old grease. It is warranted to be free of defects from workmanship and materials for the period of ONE YEAR from the date of original purchase. Should any trouble develop during this one year period, return the COMPLETE tool, freight prepaid, to one of Makita's Factory or Authorized Service Centers. If inspection shows the trouble is caused by defective workmanship or material, Makita will repair (or at our option, replace) without charge. [. . . ]