User manual MAKITA BFR440

[. . . ] Be aware that this tool is always in an operating condition, because it does not have to be plugged into an electrical outlet. Hold tool by insulated gripping surfaces when performing an operation where the cutting tool may contact hidden wiring. Contact with a "live" wire will also make exposed metal parts of the tool "live" and shock the operator. [. . . ] Always insert it all the way until it locks in place with a little click. If you can see the red part on the upper side of the button, it is not locked completely. If not, it may accidentally fall out of the tool, causing injury to you or someone around you. If the cartridge does not slide in easily, it is not being inserted correctly. Always be sure that the tool is switched off and the battery cartridge is removed before carrying out any work on the tool. 6) Press the dust cover toward the plane bearing and pull out the bit. If the dust cover cannot be moved as far as the plane bearing, try it again after turning the bit slightly. To install the bit, insert it into the socket while turning it slightly. After installing, always make sure that the bit is securely held in place by trying to pull it out. To obtain the desired setting, pull out the stopper base while depressing the lever until you see the number of the desired screw length (indicated on the plate) appear to rest on the very top edge of the casing. See the table below for the relation between the number indicated on the plate and the respective screw length ranges. Then insert it through the feeder box until the first screw reaches the position next to the driving position. To remove the screw strip, just pull it out in the direction of the arrow. 10) If you depress the reverse button, you can pull out the screw strip in the reverse direction of the arrow. While keeping it in this position, turn the adjusting knob until the bit tip projects approx. If the screw head projects above the driving surface, turn the adjusting knob in the A direction; if the screw head is countersunk, turn the adjusting knob in the B direction. When removing the carry hook, widen it by pressing its right ends ON BOTH SIDES in the directions of arrow (1) and raise it in the direction of the arrow (2). Before inserting the battery cartridge into the tool, always check to see that the switch trigger actuates 6 Hold the tool squarely and firmly up against the driving surface. [. . . ] Always be sure that the tool is switched off and the battery cartridge is removed before attempting to perform inspection or maintenance. 16) Use a screwdriver to remove two screws then remove the front cover. 17) Raise the arm part of the spring and then place it in the recessed part of the housing with a slotted bit screwdriver of slender shaft or the like. [. . . ]