[. . . ] Do not short the battery cartridge: (1) Do not touch the terminals with any conductive material. A battery short can cause a large current flow, overheating, possible burns and even a breakdown. Keep all parts of the body away from the saw chain when the motor is operating. [. . . ] Switch off the chain saw immediately if you notice anything abnormal in operation. Carefully inspect the chain saw if you drop or strike it against something hard. When not in use, chain saws should be stored in a dry, and high or locked-up place -- out of reach of children. Also use safety footwear; snug fitting clothing; protective gloves; and head protection. Before making a cut, remove dirt, stones, loose bark, nails, staples and wire from the tree. Secure the workpiece so that it will not move suddenly during operation. To prevent the saw chain from being pinched in the cut, support the workpiece near the cut using blocks or the like. CAUTION: Before inserting the battery cartridge into the tool, always check to see that the switch trigger actuates properly and returns to the "OFF" position when released. To prevent the switch trigger from being accidentally pulled, a lock-off button is provided. Always be sure that the tool is switched off and the battery cartridge is removed before installing or removing the saw chain. â· Always wear gloves when installing or removing the saw chain. Notice that the cutters must be facing the revolving (arrow) direction. Install the guide bar so that its concave portion will contact the saw chain tension adjusting spring. The gap between the guide bar and the tie strap of the saw chain should be approx. Always be sure that the tool is switched off and the battery cartridge is removed before lubricating the saw chain. Also lubricate it whenever replacing a fully discharged battery cartridge with a charged one. Always be sure that the tool is switched off and the battery cartridge is removed before carrying out any work on the tool. â· Always wear gloves when performing any inspection or maintenance. [. . . ] â· Please have your saw chain sharpened at a Makita Authorized Service Center or replace with a new one if your saw chain does not cut correctly. Chips and sawdust will build up in the guide bar groove, clogging it and impairing oil flow. Always clean out the chips and sawdust when sharpening or replacing the saw chain. [. . . ]