Kevin, if the bottom of the clutch cable is connected to a bell crank, which passes through the side plate of the mower and pulls the drive belt's tensioning idler toward the rear of the mower, it would work as you have said all along, and operate as a clutch on both the reel and the drum. That would mean that the mechanism inside the drum drive pulley does not contain a clutch on this model, unlike the SB45 and SB430. Because it looks just like the usual drum clutch mechanism I've always believed that's what it was, but your description of how it works suggests that it is a bell crank-operated belt clutch. Can you show us some closer pictures of the mechanism please, to clear this up?
