[. . . ] They are double-insulated in accordance with European Standard and can, therefore, also be used from sockets without earth wire. Safety hints For your own safety, please refer to the enclosed safety instructions. DO NOT let comfort or familiarity with product (gained from repeated use) replace strict adherence to jig saw safety rules. [. . . ] With the blade teeth facing forward, insert the blade into the blade holder as far as it will go. This tool can be operated with an orbital or a straight line cutting action. 4) CAUTION: Before plugging in the tool, always check to see that the switch trigger actuates properly and returns to the "OFF" position when released. The tool speed can be adjusted between 500 and 3, 000 strokes per minute by turning the adjusting dial. Refer to the table below to select the proper speed for the workpiece to be cut. However, the appropriate speed may differ with the type or thickness of the workpiece. In general, higher speeds will allow you to cut workpieces faster but the service life of the blade will be reduced. For 4304 only Press the trigger and at the same time move the lock lever backward. Rest the base flat on the workpiece and gently move the tool forward along the previously marked cutting line. With the base tilted, you can make bevel cuts at any angle between 0° and 45° (left or right). Move the base so that the bolt is positioned in the center of the crossshaped slot in the base. Use of the circular guide insures clean, smooth cutting of circles (radius; under 200 mm. Insert the pin through the center hole and secure it with the threaded knob. Then install the circular guide on the base in the same manner as the guide rule (rip fence). Install the plastic cover on the tool by fitting it into the notches in the tool. To attach the vacuum head on the tool, insert the hook of the vacuum head into the hole in the base. [. . . ] The underside of the workpiece can be greased instead of using a coolant. Use the plastic base plate when cutting decorative veneers, plastics, etc. When cutting widths of under 150 mm repeatedly, use of the guide rule (rip fence) will assure fast, clean, straight cuts. [. . . ]