User manual RYOBI PCN-4550

[. . . ] Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases, or dust. Power tools create sparks which may ignite the dust or fumes. Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control. [. . . ] Use of the power tool for operations different from intended could result in a hazardous situation. Ensure the switch is in the off position before inserting battery pack. A charger that is suitable for one type of battery pack may create a risk of fire when used with another battery pack. Use power tools only with specifically designated battery packs. Use of any other battery packs may create a risk of injury and fire. When battery pack is not in use, keep it away from other metal objects like paper clips, coins, keys, nails, screws or other small metal objects that can make a connection from one terminal to another. shorting the battery terminals together may cause burns or a fire. Under abusive conditions, liquid may be ejected from the battery, avoid contact. if contact accidentally occurs , flush with water. If liquid contact eyes, additionally seek medical help. Liquid ejected from the battery may caused irritation or burns. Load the caulk tube into the carriage frame, making sure it is well seated at both ends. If too much pressure is exerted on the tube, the motor will shut down. this helps to prevent damage to the tool and the caulk tube. If the motor shuts off, make sure that: Lock the switch trigger by sliding the switch lock up. Nozzle tip is cut Inner seal in the caulk tube is broken Hardened material is removed from the nozzle Caulk tube is not damaged or frozen Plunger rod is free of caulk/adhesive materials Before attempting to start the caulk gun, be sure the switch lock is in the unlocked position. To turn the caulk gun ON, depress the switch trigger. To turn the caulk gun OFF, release the switch trigger. Release the trigger and wait for 3 to 5 seconds to allow the electronics to reset. If the motor again shuts off, move the variable speed selector to the middle position and press the trigger again. If the motor continues to shut off, try another tube of material or take the tool to an authorized service center. wARNING Battery tools are always in operating condition. [. . . ] However, in some cases (particularly where the side materials are rough or uneven), a pulling motion may work better as the cartridge will be less likely to get snagged along the joint. The motor will shut off automatically when a caulk tube becomes empty. Pull the plunger rod back and replace the caulk tube as necessary. to end the caulk bead , release the switch trigger. [. . . ]