7ASSEMBLYCAUTION:• Always be sure that the tool is switched off and thebattery cartridge is removed before carrying outany work on the tool.Installing or removing the driver bit or drill bit1012976Turn the sleeve counterclockwise to open the chuck jaws.Place the bit in the chuck as far as it will go. Turn thesleeve clockwise to tighten the chuck.To remove the bit, turn the sleeve counterclockwise.Installing the hook12 3012977The 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 toolhousing on either side and then secure it with a screw. Toremove, loosen the screw and then take it out.Installing the bit holder (Optional accessory)12012798Fit the bit holder into the protrusion at the tool foot oneither 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.OPERATIONCAUTION:• Always insert the battery cartridge all the way until itlocks in place. If you can see the red part on theupper side of the button, it is not locked completely.Insert it fully until the red part cannot be seen. If not,it may accidentally fall out of the tool, causing injuryto you or someone around you.Hold the tool firmly with one hand on the grip and theother hand on the bottom of the battery cartridge tocontrol the twisting action.CAUTION:• Do not cover vents, or it may cause overheatingand damage to the tool.1012979Screwdriving operation012978First, turn the action mode changing ring so that thearrow on the tool body points to the marking. Adjustthe adjusting ring to the proper torque level for your work.Then proceed as follows.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.1. Vent1. Bit holder2. Bit1. Groove2. Hook3. Screw1. Sleeve