How does a Hesston 1060 disc mower drive work?

The power is transferred through the PTO shaft into a gear box. The gear box then drives a sprocket/drive chain that drives the rollers and the discs. There is a shear bolt on this sprocket/chain set up and can be located on the pto side of the machine under a cover that is held on with 4 bolts. The power is then transferred to the rollers and to a shaft that drives the disc's. The right 4 (I think) of the disc mower is driven by a shaft that runs down the center of the outside right drum. It is driven by a long shaft that runs the length of the mower.