Makita BTW251Z Owners Manual - Page 6

Fastening torque Proper fastening torque Align the hole in the side of the socket with the detent pin on the anvil and push it onto the anvil of the tool until it locks into place. Tap it lightly if required. To remove the socket, simply pull it off. Hook 1. Hook 2. Screw 3 3. Groove 2 1 007521 Standard bolt N m (ft lbs) 160 (116) 140 (101) 120 (87) 100 (72) 80 (58) 60 (43) 40 (29) 20 (14) 00 M16(5/8") M16(5/8") M14(9/16") M14(9/16") M12(1/2") M12(1/2") 0.5 1.0 1.5 2.0 Fastening time (S) 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 007538 High tensile bolt N m (ft lbs) CAUTION: • Always insert the battery cartridge all the way until it locks in place. If you can see the red part on the upper 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 injury to you or someone around you. Hold the tool firmly and place the socket over the bolt or nut. Turn the tool on and fasten for the proper fastening time. 200(145) 180(130) 160(116) 140(101) 120(87) 100(72) 80(58) 60(43) 40(29) 20(14) 0 M14(9/16") M14 (9/16") M12(1/2") M10(3/8") M12 (1/2") M10 (3/8") 1.0 2.0 3.0 Fastening time (S) Fastening torque Proper fastening torque 007537 007461 The proper fastening torque may differ depending upon the kind or size of the bolt, the material of the workpiece to be fastened, etc. The relation between fastening torque and fastening time is shown in the figures. NOTE: • Hold the tool pointed straight at the bolt or nut. • Excessive fastening torque may damage the bolt/nut or socket. Before starting your job, always perform a test operation to determine the proper fastening time for your bolt or nut. • 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 cartridge. The fastening torque is affected by a wide variety of factors including the following. After fastening, always check the torque with a torque wrench. 1. When the battery cartridge is discharged almost completely, voltage will drop and the fastening torque will be reduced. 2. Socket 6