I recently came across a Cincinnati No.3 that needs some major repair. Machine is not feeding due to a jammed hydraulic drive shaft. I'm having trouble looking for the correct manual and so far all the manuals that I have found has a different overarm compared to mine (see attached pictures). If someone can point me to the correct manual I would be grateful. Also I found two disconnected pipe fittings on the underside of the knee in feedbox compartment, as shown in the attached pictures. Anyone has any idea what these are for?