How do you install cotter pin?

To install a cotter pin, first, insert the pin through the hole of the clevis or shaft that you want to secure. Once it's in place, bend the two ends of the pin outward to secure it, ensuring that it holds the components together. Make sure the ends are not excessively long; trim them if necessary to avoid interference with other moving parts. Finally, check that the cotter pin is securely fastened and that it does not obstruct any mechanisms.