Next lift off the hour hand.
How to remove the movement from a wall clock.
Lift off the minute hand then the collet.
If there is a second hand on your clock you may need to use your pliers to remove a small nut and cap that holds the hand in place.
Use your fingers or a set of needle nose pliers to carefully remove each of the clock s hands one at a time from the hand shaft which is the anchor in the center of the clock that all of the hands are attached to.
Remove the battery operated movement retaining nut with an adjustable wrench.
To remove the clock movement you will need to remove the clock hands first.
If you have a second hand this will normally pull off.
Clock movement replacement only require two measurements and then you can choose the correct movement and clock hands.
Thin needle nosed pliers can be used to pull upward on the back of the second hand near the hub to remove.
Place the leading end of the wrench jaws on the nut and turn counterclockwise to prevent scratching the dial.
This is a good diy to learn.
If you have a clock you like and the mechanism that runs it stops working you can replace it yourself.