What happens next in this paragraph?

How to set a cuckoo clock
Keep the clock in a vertical position.
Before setting the clock, you should hang it on the wall where you intend to keep it. The clock must be in an upright position before you can set it.
The clock should be 6 to 6.5 feet (1.8 to 2 m) above the floor. Use wide wood screw (like a 8 or 10) that is long enough the fasten into a stud in the wall.