Hi this is my first post we purchased this Seth Thomas 2E mantle clock last weekend at a yard sale. The clock keeps perfect time plugged in but it doesn’t strike the chimes on the hour and half hour. I did everything it said to on the instructions to release all the arms holding everything in place. It makes a noise on the half and hour like something is moving inside but I can’t see what it might be. I’ve tried continuing to turn the dial it says to if it’s not making any noise to no avail. I can lift the arm and let it drop and the chimes sound so it doesn’t appear obstructed. At a glance I can’t tell what might be the problem and my wife is dying to hear this thing work so any help is greatly appreciated!