User manual MAKITA 4190DB

[. . . ] Do not operate charger if it has received a sharp blow, been dropped, or otherwise damaged in any way; take it to a qualified serviceman. Do not disassemble charger or battery cartridge; take it to a qualified serviceman when service or repair is required. Incorrect reassembly may result in a risk of electric shock or fire. To reduce risk of electric shock, unplug charger from outlet before attempting any maintenance or cleaning. [. . . ] 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. This is a normal condition and does not indicate a problem. You can recharge the battery cartridge fully after discharging it completely and recharging a couple of times. When you charge a battery cartridge from a justoperated machine or a battery cartridge which has been left in a location exposed to direct sunlight or heat for a long time, let it cool off. Then re-insert it and try to charge it once more. When you charge a new battery cartridge or a battery cartridge which has not been used for a long period, sometimes the charging light will go out soon. if this occurs , remove the battery cartridge and re-insert it. If the charging light goes out within one minute even after repeating this procedure a couple of times, the battery cartridge is dead. 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 will come on and charging will begin. The charging light will keep lighting up steadily during charging. When charging is completed, the charging light goes out. After charging, unplug the charger from the power source. Turn the tank clockwise when making the connection. Then tighten the screw (A) securely to secure the tank. 7) CAUTION: If you find the polyvinyl tube is bent like a ``V'' or has been strained excessively after installing the water supply, loosen the screw (B) and adjust the position of the tank to alleviate the bent, pinched or strained condition. Important: Always be sure that the machine is switched off and the battery cartridge is removed before installing or removing the wheel. To install the wheel, first loosen the bolt with the hex wrench and remove the bolt and the flange. then mount the wheel , the flange and the bolt. The wheel should be mounted with the Makita name on the flange side. Press the blade stopper pin and insert it through the hole in the wheel so that the wheel cannot revolve. [. . . ] When cutting glass plate, it is recommended to attach a rubber plate (optional accessory) on the base of the machine to prevent the workpiece surface from being scratched. Be sure to feed water to the wheel during operation. If the cutting action of the wheel begins to diminish, dress the cutting edge of the wheel using an old discarded coarse grit bench grinder wheel or concrete block. CAUTION: Always be sure that the machine is switched off and the battery cartridge is removed before carrying out any work on the machine. [. . . ]