When the power is on the tip temperature can reach over 300 C ( 572 ° F ) . Since mishan dling may lead to burns or fire , be sure to comply with the following precautions . Do not touch the tip and the metallic parts near the tip .• Do not use the product near flammable items .• Turn the power off when not in use the unit .• Do not warm up the soldering iron with the tip pointing down . Do not use the unit for applications other than soldering .Do not wet the unit or use the unit when your hands are wet Do not modify the unit . Use only genuine HAKKO replacement parts . Do not shock the unit , or otherwise subject the heating element to severe damage . The soldering process will produee smoke , so make sure the area is well ventilated .How to solder1. Heat the part with the soldering tip .2. Apply rosin - based solder to the part and melt it with the soldering tip .3. Wait for the solder to cool and harden before moving the soldered part .Note• Remove residual solder or any dirt with a moistened duster or the tip cleaner .• Coat the tip fresh solder after use . . Before replacing the parts , turn the power off and allow the unit to cool to room temperature .• The first time you use the soldering iron , it may smoke slightly as the heating element dries out . This is normal and should only last for approx . 10 minutes .• Clean the parts to be joined .• Clean soldering leon tip abd in all faces of tip with a coating of sol : der Heat the part where to be soldered• Apply flux - cored solder to heated part ( not the soldering tip ) and heat it till solder melts and flows freelu .