Close the door

Set all symbols correctly and push the mechanism up. You can then adjust the wheels as you wish.

The puzzle pieces can be placed back into the window at the front right.

Afterwards all windows can be closed.

The side slider can then be pushed back in and the rear wheels can be adjusted as desired.

The rear sliders can then be pushed back in.

Then the two small pins can be reinserted.

And the clock can be inserted and moved randomly. Now the puzzle box can be solved again by other players.