Patent attributes
A knotter arrangement of a large square baler includes a plurality of knotter assemblies with each assembly including a knotter gear having a hub received on, and coupled for rotation with, a knotter drive shaft. Each assembly further includes a knotter frame including an upper end defined by a sleeve received on the gear hub. Mounted for rotation within four bores provided in the knotter frame are a worm gear spindle, a twine disk spindle, a billhook spindle and a knife arm shaft. A lubrication system includes a primary distribution manifold coupled between a lubrication pump and a plurality of lubrication delivery lines respectively leading to an inlet passage provided in each of the plurality of knotter frames, the inlet passage leading to a lubricant distribution valve mounted to the knotter frame and being operable for serially coupling the inlet passage to a plurality of lubricant distribution passages provided in the knotter frame and being coupled to respective lubrication points either directly by internal passages or indirectly by way of lubricant distribution lines extending exteriorly of the knotter frame.
