This Herman Miller 150 has been cleaned, reassembled but for some reason the two barrels for the strike and chime don't have enough power as driven by the motor. Manually I can crank both springs up to the slipping point and the chime and strike work well. The winding wheels line up well but the clock only runs for about 12 hours or so before stopping. I can't see what might be stopping the motor. I could really use some help. I'm a mechanical clock and watch repairman. I usually don't get involved with electric clocks but this oldy looked interesting.