Makita DTW190 Instruction Manual

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7 ENGLISHReversing switch action► Fig.6: 1. Reversing switch leverCAUTION: Always check the direction ofrotation before operation.CAUTION: Use the reversing switch only afterthe tool comes to a complete stop. Changing thedirection of rotation before the tool stops may dam-age the tool.CAUTION: When not operating the tool,always set the reversing switch lever to the neu-tral position.This tool has a reversing switch to change the directionof rotation. Depress the reversing switch lever from theA side for clockwise rotation or from the B side for coun-terclockwise rotation.When the reversing switch lever is in the neutral posi-tion, the switch trigger cannot be pulled.ASSEMBLYCAUTION: Always be sure that the tool isswitched off and the battery cartridge is removedbefore carrying out any work on the tool.Selecting correct impact socketAlways use the correct size impact socket for bolts andnuts. An incorrect size impact socket will result in inac-curate and inconsistent fastening torque and/or damageto the bolt or nut.Installing or removing impact socketCAUTION: Make sure that the impact socketand the mounting portion are not damaged beforeinstalling the impact socket.CAUTION: After inserting the socket, makesure that it is firmly secured. If it comes out, donot use it.For impact socket without O-ringand pin► Fig.7: 1. Impact socket 2. Square driveAlign the square of the impact socket with the squaredrive and push the impact socket onto the square driveuntil it locks into place. Tap it lightly if required.To remove the impact socket, simply pull it off.For impact socket with O-ringand pin► Fig.8: 1. Impact socket 2. O-ring 3. PinMove the O-ring out of the groove in the impact socketand remove the pin from the impact socket. Fit theimpact socket onto the square drive so that the hole inthe impact socket is aligned with the hole in the squaredrive.Insert the pin through the hole in the impact socket andsquare drive. Then return the O-ring to the original posi-tion in the impact socket groove to retain the pin.To remove the impact socket, follow the installationprocedures in reverse.Installing hookOptional accessory► Fig.9: 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.OPERATIONCAUTION: Always insert the battery cartridgeall the way until it locks in place. If you can seethe red part on the upper side of the button, it is notlocked completely. Insert it fully until the red part can-not be seen. If not, it may accidentally fall out of thetool, causing injury to you or someone around you.► Fig.10Hold the tool firmly and place the impact socket overthe bolt or nut. Turn the tool on and fasten for the properfastening time.The proper fastening torque may differ depending uponthe kind or size of the bolt, the material of the workpieceto be fastened, etc. The relation between fasteningtorque and fastening time is shown in the figures.Proper fastening torque for standard bolt1Nm(kgfcm)2020(200)40(410)60(610)80(820)100(1020)120(1220)140(1430)160(1630)180(1840)0 1 2 3M16M14M12M10M8M8M10M12M14M161. Fastening time (second) 2. Fastening torque