Well, I got the machine stripped down to open the gearbox which is an integral to the spine frame of the machine and there are no obvious signs of a broken gear or stripped sprocket yet. The entire inside of the gearbox/chain case is full of the heaviest, sticky, smelly cosmolene (sp...?) grease I have ever encountered.
As soon as I can clean that off the gears and shafts I will be able examine them for damage.
How does one best clean the compline off the gears and shafts...? Which solvent works best for this...?
How in the world does one assemble the gear and shaft assemblies and then fill the case with lubricant...?
pdf of the chain case diagram attached to illustrate if needed...