First up, you must remove your toilet tank’s lid so that you can access the working parts inside of it. Make sure to place it well away from the toilet itself. This will eliminate the risk of you accidentally stepping back and onto the tank lid.
Once the toilet tank is empty, it is time to release the clip of the same chain that you just used to internally flush your toilet. The chain clip is the part that attaches the flapper to the toilet handle.
The next step is to remove the mounting nut. The mounting nut is the part that fixes the toilet handle to the inside of the toilet. A pair of locking pliers will offer you the best leverage, but a pair of regular pliers should do the job as well.
Once you have removed the toilet handle’s mounting nut, it should be an easy task to remove the toilet handle itself. The toilet handle should be entirely detached from the toilet chain and free from the side of the toilet.
The trick with reattaching the chain to the lever is to make sure that there is one inch of slack, nothing more, and nothing less. The lever end should have at least two hole options and sometimes up to four which will make this task an easy one.