6Speed changeFig.4To change the speed, first switch off the tool and thenslide the speed change lever to the "2" side for highspeed or "1" side for low speed. Be sure that the speedchange lever is set to the correct position beforeoperation. Use the right speed for your job.CAUTION:• Always set the speed change lever fully to thecorrect position. If you operate the tool with thespeed change lever positioned halfway betweenthe "1" side and "2" side, the tool may bedamaged.• Do not use the speed change lever while the tool isrunning. The tool may be damaged.Selecting action modeFig.5This tool has an action mode change lever. For drilling,depress the lock button and then slide the action modechange lever to the left ( symbol). For screwing, slidethe action mode change lever to the right ( symbol)until it is locked. If it is hard to turn the lever, first turn thechuck slightly in either direction and then turn the leveragain.CAUTION:• Always slide the action mode change lever all theway to your desired mode position. If you operatethe tool with the lever positioned halfway betweenthe mode symbols, the tool may be damaged.• Do not use the action mode change lever while thetool is running. The tool may be damaged.Adjusting the fastening torqueFig.6The fastening torque can be adjusted in 16 steps byturning the adjusting ring so that its graduations arealigned with the pointer on the tool body.First, slide the action mode change lever to the positionof symbol.The fastening torque is minimum when the number 1 isaligned with the pointer, and maximum when themarking is aligned with the pointer. The clutch will slip atvarious torque levels when set at the number 1 to 16.Before actual operation, drive a trial screw into yourmaterial or a piece of duplicate material to determinewhich torque level is required for a particular application.NOTE:• The adjusting ring does not lock when the pointeris positioned only halfway between thegraduations.ASSEMBLYCAUTION:• Always be sure that the tool is switched off and thebattery cartridge is removed before carrying outany work on the tool.Installing or removing driver bit or drill bitFig.7Hold the ring and turn the sleeve counterclockwise toopen the chuck jaws. Place the bit in the chuck as far asit will go. Hold the ring firmly and turn the sleeveclockwise to tighten the chuck.To remove the bit, hold the ring and turn the sleevecounterclockwise.When not using the driver bit, keep it in the bit holders.Bits 45 mm long can be kept there.Fig.8OPERATIONScrewdriving operationFig.9First, slide the action mode change lever to the positionof symbol and select the fastening torque.Place the point of the driver bit in the screw head andapply pressure to the tool. Start the tool slowly and thenincrease the speed gradually. Release the switch triggeras soon as the clutch cuts in.CAUTION:• Make sure that the driver bit is inserted straight inthe screw head, or the screw and/or bit may bedamaged.NOTE:• When driving wood screws, predrill pilot holes tomake driving easier and to prevent splitting of theworkpiece. See the chart.Nominal diameter of wood screw(mm)Recommended size of pilot hole(mm)3.1 2.0 - 2.23.5 2.2 - 2.53.8 2.5 - 2.84.5 2.9 - 3.24.8 3.1 - 3.45.1 3.3 - 3.65.5 3.7 - 3.95.8 4.0 - 4.26.1 4.2 - 4.4006421Drilling operationFirst, slide the action mode change lever to the positionof symbol.Drilling in woodWhen drilling in wood, the best results are obtained withwood drills equipped with a guide screw. The guidescrew makes drilling easier by pulling the bit into theworkpiece.