[. . . ] Stay alert, watch what you are doing and use common sense when operating a power tool. Do not use a power tool while you are tired or under the influence of drugs, alcohol or medication. A moment of inattention while operating power tools may result in serious personal injury. Safety equipment such as dust mask, non-skid safety shoes, hard hat, or hearing protection used for appropriate conditions will reduce personal injuries. [. . . ] 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). Do not incinerate the battery cartridge even if it is severely damaged or is completely worn out. MISUSE or failure to follow the safety rules stated in this instruction manual may cause serious personal injury. Volts direct current no load speed revolutions or reciprocation per minute number of blow 2. Always stop tool operation and charge the battery cartridge when you notice less tool power. CAUTION: Always be sure that the tool is switched off and the battery cartridge is removed before adjusting or checking function on the tool. Always switch off the tool before insertion or removal of the battery cartridge. To remove the battery cartridge, withdraw it from the tool while sliding the button on the front of the cartridge. To insert the battery cartridge, align the tongue on the battery cartridge with the groove in the housing and slip it into place. Always insert it all the way until it locks in place with a little click. If you can see the red part on the upper side of the button, it is not locked completely. If not, it may accidentally fall out of the tool, causing injury to you or someone around you. If the cartridge does not slide in easily, it is not being inserted correctly. 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. The battery cartridge is equipped with the protection system, which automatically cuts off the output power for its long service life. The tool may stop during operation when the tool and/or battery are placed under the following situation. This is caused by the activation of protection system and does not show the tool trouble. â· When the tool is overloaded: At this time, release the switch trigger and remove causes of overload and then pull the switch trigger again to restart. When the tool does not work even after pulling the switch trigger, the battery power auto-stop is still at work. CAUTION: Do not look in the light or see the source of light directly. The light automatically goes out 10 - 15 seconds after the switch trigger is released. [. . . ] If inspection shows the trouble is caused by defective workmanship or material, Makita will repair (or at our option, replace) without charge. This Warranty does not apply where: repairs have been made or attempted by others: repairs are required because of normal wear and tear: the tool has been abused, misused or improperly maintained: alterations have been made to the tool. This Warranty gives you specific legal rights, and you may also have other rights which vary from state to state. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. [. . . ]