User manual MAKITA 6990D

[. . . ] Always cover the battery terminals with the battery cover when the battery cartridge is not used. 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. Do not store the tool and battery cartridge in locations where the temperature may reach or exceed 50°C (122°F). [. . . ] Hold tool by insulated gripping surfaces when performing an operation where the cutting tool may contact hidden wiring. Contact with a ``live'' wire will also make exposed metal parts of the tool ``live'' and shock the operator. use the battery charger Model DC1411 to charge the battery cartridge. Insert the battery cartridge so that the plus and minus terminals on the battery cartridge are on the same sides as their respective markings on the battery charger. insert the cartridge fully into the port so that it rests on the charger port floor. When the battery cartridge is inserted, the charging light color will change from green to red and charging will begin. When the charging light color changes from red to green, the charging cycle is complete. If you leave the battery cartridge in the charger after the charging cycle is complete, the charger will switch into its ``trickle charge (maintenance charge)'' mode which will last approximately 24 hours. Never use it for other purposes or for other manufacturer's batteries. ⷠWhen you charge a new battery cartridge or a battery cartridge which has not been used for a long period of time, it may not accept a full charge. You can recharge the battery cartridge fully after discharging it completely and recharging a couple of times. ⷠIf you charge a battery cartridge from a just-operated tool or a battery cartridge which has been left in a location exposed to direct sunlight or heat for a long time, the charging light may flash in red color. The battery cartridge will cool faster if you remove the battery cartridge from the battery charger. ⷠIf the charging light flashes alternately in green and red color, a problem exists and charging is not possible. The terminals on the charger or battery cartridge are clogged with dust or the battery cartridge is worn out or damaged. If you leave the battery cartridge in the charger to prevent spontaneous discharging after full charge, the charger will switch into its ``trickle charge (maintenance charge)'' mode and keep the battery cartridge fresh and fully charged. Always stop tool operation and charge the battery cartridge when you notice less tool power. Charge the Nickel Metal Hydride battery cartridge when you do not use it for more than six months. Important: Always be sure that the tool is switched off and the battery cartridge is removed before installing or removing the bit. ⷠUse the reversing switch only after the tool comes to a complete stop. Changing the direction of rotation before the tool stops may damage the tool. ⷠWhen not operating the tool, always set the reversing switch lever to the neutral position. [. . . ] Driver bit or socket bit Failure to use the correct size driver bit or socket bit will cause a reduction in the fastening torque. Even though the torque coefficient and the class of bolt are the same, the proper fastening torque will differ according to the diameter of bolt. ⷠEven though the diameters of bolts are the same, the proper fastening torque will differ according to the torque coefficient, the class of bolt and the bolt length. The manner of holding the tool or the material of driving position to be fastened will affect the torque. [. . . ]