[. . . ] Concerning the use of chemical sprays, be sure to thoroughly read the chemical instructions, in 5 Order to become fully acquainted with toxicities and usage methods. If chemical comes into contact with skin, immediately wash thoroughly with soap. Always thoroughly wash empty chemical containers when mixing spray liquid and then follow chemical manufacturer's instructions to correctly dispose of containers at all times. Before using the sprayer, be sure to check there are no abnormalities, such as displacement of packing from connector, looseness of screws, missing components, and/or cracked/worn/ damaged hose. [. . . ] Check to make sure that the spray hose is not cracked, worn and/or damaged. If there is a leak from a connector unit, tighten further using a hand tool (by approximately 45 degrees). Do not use a spray pipe that is longer than the standard one provided. Always stop tool operation and charge the battery cartridge when you notice less tool power. Use the diagram pointers to attach the back strap at top and bottom, making sure there are no twists in the strap. nOTE: · Check to make sure that back strap is securely attached to chemical tank. Always be sure that the tool is switched off and the battery cartridge is removed before adjusting or checking function on the tool. Before inserting the battery cartridge into the tool, always check to see that the tool is switched off. 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. To prevent sudden spraying, be sure to set the lever cock to STOP, before turning sprayer switch ON or OFF. When spray work is interrupted, be sure to turn switch OFF, to prevent inadvertent spraying. 4) Be sure to check the situation of surroundings before turning sprayer switch ON. Once spraying is complete, immediately set lever cock to STOP, and then turn sprayer switch OFF. Release the lever, and it will return to position "A" and spraying will stop. Check to make sure the tank is loaded with chemical or clean water when operating the sprayer, as continued operation of the sprayer with an empty tank may burn out the pump. Running the sprayer for prolonged periods with the lever cock closed may have an adverse effect on the pump as well as drain the battery. [. . . ] CAUTION: Store the Sprayer out of reach of children, in an indoor locale that does not freeze, is away from direct sunlight, and has good ventilation. - Take full care in storing the sprayer, as, in some cases, the plastic components will deteriorate markedly if left in direct sunlight for a prolonged period; moreover, product caution labels will discolor and/or come off. Always adhere to chemical manufacturer instructions when handling chemicals. The use of any other accessories or attachments might present a risk of injury to persons. [. . . ]