New Holland CX720 Repair Manual page 3726

CROP PROCESSING - CLEANING Primary cleaning
Shoe drive system - Dynamic description (K.62.B.45 - C.30.A.10)
The cleaning shoe drive is driven from a pulley on the straw walker intermediate shaft, through a belt, to a safety
clutch located on the input shaft of the cleaning shoe drive lower gearbox. Power is transmitted from the output shaft
of the lower gearbox through an extendable drive shaft connected to the input shaft of the cleaning shoe drive upper
gearbox. Power is transmitted from the output shaft of the upper gearbox, through a flexible coupling connecting the
upper gearbox to the eccentric shaft. A connecting rod is mounted to the left and right side of the eccentric shaft on
a press fit eccentric bearing assembly. The eccentric shaft turns with power supplied by the gearbox, rotating the
eccentric bearings, in turn rotating the connecting rods. The connecting rods are attached to the cleaning shoe with
bushings and bushing caps. When the connecting rods turn on the eccentric shaft, the cleaning shoe moves in time
with the eccentric assembly, moving the cleaning shoe back and forth.
2 4/7/2006
K.62.B / 14