Using the Harris J-63-1 Acetylene Heating Tip is straightforward. First, make sure you have a genuine Harris mixer. Connect the tip to the mixer; you don't need to use any thread sealants as it has metal - to - metal contact seats. If you're using it with an E - 43, D - 85 tube or 43 - 2, 63, 85 handles, just attach it properly. This tip is designed for oxy - acetylene or hydrogen heating applications, so ensure you have the right gas supply. When it comes to maintenance, after each use, let the tip cool down completely. Wipe it gently with a clean cloth to remove any debris. Keep it in a dry place. If you notice any damage, don't use it and contact the Harris service team as it comes with a one - year warranty.