8 ENGLISHASSEMBLYCAUTION: Always be sure that the tool isswitched off and the battery cartridge is removedbefore carrying out any work on the tool.Installing or removing driver bit/socket bit12 mm(15/32”)9 mm(3/8”)Use only the driver bit/socket bit shown in the figure. Donot use any other driver bit/socket bit.1 2► 1. Driver bit 2. SleeveTo install the driver bit, insert it into the sleeve as far asit will go.1 2► 1. Driver bit 2. SleeveTo remove the driver bit, pull the sleeve in the directionof the arrow and pull the driver bit out.NOTE: If the driver bit is not inserted deep enoughinto the sleeve, the sleeve will not return to its originalposition and the driver bit will not be secured. In thiscase, try re-inserting the bit according to the instruc-tions above.NOTE: When it is difficult to insert the driver bit, pullthe sleeve and insert it into the sleeve as far as it willgo.NOTE: After inserting the driver bit, make sure that itis firmly secured. If it comes out, do not use it.Installing hook123► 1. Groove 2. Hook 3. ScrewThe hook is convenient for temporarily hanging the tool.This can be installed on either side of the tool. To installthe hook, insert it into a groove in the tool housing oneither side and then secure it with a screw. To remove,loosen the screw and then take it out.OPERATIONThe proper fastening torque may differ depending uponthe kind or size of the screw/bolt, the material of theworkpiece to be fastened, etc. The relation between fas-tening torque and fastening time is shown in the figures.