Replacement AA Mechanism

Changing the mechanism is easy! Carefully lift second hand by its center, by pulling straight out, away from the clock. Lift minute hand by its center, followed by the hour hand. Using a 11 mm wrench, remove nut, being careful not to touch the face of the clock. Holding wrench as flat as possible against the clock face makes this easier to accomplish. If your clock has a washer, this may stay on clock face at this time. Pull clock mechanism out through the back and replace with new mechanism. Be sure the mechanism is straight up and down. If it’s slightly askew, this can affect the pendulum swinging. Tighten the bolt (not too tight or it can damage the mechanism). Replace hour hand, then minute hand. GENTLY tap second hand into place. (If pushed on too hard, the second hand can jam and affect the time keeping function.) Here is a video that can be watched as well. https://www.youtube.com/watch?v=tNf4FQRFUzs