First of all, you will need to prepare a scwrench for your chainsaw (usually this type of equipment comes in a kit) or a socket wrench alongside with a flat screwdriver. After that, you can start the process of removing a chainsaw chain. Take off the side panel and pull the bar of a tool to release the tension. Remove your old tool. Now you can put a new chain on your equipment. However, it is recommended to use a screwdriver to manage chain tension.