Makita BDF451Z Owners Manual - Page 7

Installing bit holder 1 006725 1. Bit holder 2. Bit 2 Fit the bit holder into the protrusion at the tool foot on eithher right or left side and secure it with a screw. When not using the driver bit, keep it in the bit holders. Bits 45 mm (1-3/4") long can be kept there. Hook 006727 1 1. Screw 2. Hook 3. Groove 3 2 The hook is convenient for temporarily hanging the tool. This can be installed on either side of the tool. To install the hook, insert it into a groove in the tool housing on either side and then secure it with a screw. To remove, loosen the screw and then take it out. OPERATION Screwdriving operation 006728 First, slide the action mode change lever to the position of symbol and select the fastening torque. Place the point of the driver bit in the screw head and apply pressure to the tool. Start the tool slowly and then increase the speed gradually. Release the switch trigger as soon as the clutch cuts in. NOTE: • Make sure that the driver bit is inserted straight in the screw head, or the screw and/or bit may be damaged. • When driving wood screws, predrill pilot holes to make driving easier and to prevent splitting of the workpiece. See the chart. 001904 Nominal diameter of Recommended size wood screw (mm) of pilot hole (mm) 3.1 (1/8") 2.0 - 2.2 (5/64" - 3/32") 3.5 (9/64") 2.2 - 2.5 (3/32" - 3/32") 3.8 (5/32") 2.5 - 2.8 (3/32" - 7/64") 4.5 (11/64") 2.9 - 3.2 (7/64" - 1/8") 4.8 (3/16") 3.1 - 3.4 (1/8" - 9/64") 5.1 (13/64") 3.3 - 3.6 (1/8" - 9/64") 5.5 (7/32") 3.7 - 3.9 (9/64" - 5/32") 5.8 (7/32") 4.0 - 4.2 (5/32" - 11/64") 6.1 (15/64") 4.2 - 4.4 (11/64" - 11/64") • If the tool is operated continuously until the battery cartridge has discharged, allow the tool to rest for 15 minutes before proceeding with a fresh battery. Drilling operation First, slide the action mode change lever to the position of symbol. Drilling in wood When drilling in wood, the best results are obtained with wood drills equipped with a guide screw. The guide screw makes drilling easier by pulling the bit into the workpiece. Drilling in metal To prevent the bit from slipping when starting a hole, make an indentation with a center-punch and hammer at the point to be drilled. Place the point of the bit in the indentation and start drilling. Use a cutting lubricant when drilling metals. The exceptions are iron and brass which should be drilled dry. CAUTION: • Pressing excessively on the tool will not speed up the drilling. In fact, this excessive pressure will only serve to damage the tip of your bit, decrease the tool performance and shorten the service life of the tool. • There is a tremendous force exerted on the tool/bit at the time of hole break through. Hold the tool firmly and exert care when the bit begins to break through the workpiece. • A stuck bit can be removed simply by setting the reversing switch to reverse rotation in order to back out. However, the tool may back out abruptly if you do not hold it firmly. • Always secure small workpieces in a vise or similar hold-down device. • If the tool is operated continuously until the battery cartridge has discharged, allow the tool to rest for 15 minutes before proceeding with a fresh battery. 7