Abstract: In a forage harvester cracker unit drive assembly for driving a first cracker roller and a second cracker roller, the drive assembly comprising a drive pulley, a tension pulley, a first cracker pulley associated with the first cracker roller, a second cracker pulley associated with the second cracker roller, a guide pulley, and a drive belt drivingly connecting each of these pulleys, the drive assembly further comprises a guide pulley adjustment apparatus for adjusting the position of the guide pulley with respect to the second cracker pulley.

Abstract: A forage harvester cracker unit comprising a first cracker roller, a second cracker roller, a base frame comprising left and right hand side elements, the first cracker roller being mounted on the base frame to be rotatable about a fixed central axis extending between the left and right hand side elements of the base frame and a secondary frame comprising left and right hand side elements, the second cracker roller being mounted on the secondary frame to be rotatable about a central axis extending between the left and right hand side elements of the secondary frame is disclosed.

Abstract: A forage harvester cracker unit assembly for retention of first and second cracker rollers is disclosed, each of the first and second cracker rollers having first and second ends and sealing units fitted at each of the first and second ends. The forage harvester cracker unit assembly comprises an upper housing having left and right hand sides, and a lower housing having left and right hand sides. The forage harvester cracker unit assembly further comprises first and second sets of replaceable cracker roller sealing unit location plates, each set comprising an upper cracker roller sealing unit location plate and a lower cracker roller sealing unit location plate for location at a respective left or right hand side of a respective upper or lower housing.

Abstract: A forage harvester comprising a frame and a drive assembly is disclosed. The drive assembly comprises a drive pulley, a tension pulley, a plurality of additional pulleys and a drive belt for drivingly connecting the pulleys, a tensioning cylinder located between a first portion of the frame and a support element for the tension pulley. The frame is provided with a mounting at a second portion of the frame and the support element for the tension pulley is located between the mounting at a first end of the support element and the tensioning cylinder at a second end of the support element.

Abstract: A compression roll housing for an agricultural machine, in which the housing has a side panel provided with at least one elongated aperture for receiving a shaft. The aperture allows movement of the shaft within the aperture along its longitudinal axis. The elongated aperture has a flexible cover with a cover aperture. The flexible cover prevents the escape of processed crop material from the housing, while permitting movement of the shaft in the elongated aperture.

Abstract: A compression roll housing for an agricultural machine, having a side panel provided with at least one elongated aperture for receiving a shaft of a compression roll and allowing movement of the shaft within the aperture. The housing is provided with a cover plate which rotates about an axis parallel to the shaft and is provided with an indentation to partially surround the shaft. Movement of the shaft, such as along a longitudinal axis of the aperture, causes the plate to rotate to provide a cover across the aperture to prevent the escape of any material from the housing.

Abstract: A compression roll housing for an agricultural machine, having a side panel provided with at least one elongated aperture for receiving a shaft of a compression roll and allowing movement of the shaft within the aperture. The housing is provided with a cover plate which rotates about an axis parallel to the shaft and is provided with an indentation to partially surround the shaft. Movement of the shaft, such as along a longitudinal axis of the aperture, causes the plate to rotate to provide a cover across the aperture to prevent the escape of any material from the housing.

Abstract: A drive arrangement for a harvesting header of a harvesting machine having a running gear on which a feeder housing is mounted. A front side of the feeder housing has a header mount that moves relative to the feeder housing and on which the harvesting header is detachably fastened. An automated coupling mechanism is provided to link a driven shaft from the harvesting machine to a drive shaft of the harvesting header as the header is connected to the harvesting machine. The drive connector connected with the header mount is movable relative thereto during the attachment of the harvesting header to axially align the driven shaft and drive shaft as the harvesting header approaches the feeder housing during the attachment to accommodate differing header drive shaft orientations.

Abstract: A drive arrangement for a harvesting header (22) of a harvesting machine (10) having a running gear on which a feeder housing (20) is mounted. A front side of the feeder housing has a header mount (21) that moves relative to the feeder housing and on which the harvesting header (22) is detachably fastened. An automated coupling mechanism (32) is provided to link a driven shaft (33) from the harvesting machine to a drive shaft (34) of the harvesting header as the header is connected to the harvesting machine. The drive connector (45) connected with the header mount (21) is movable relative thereto during the attachment of the harvesting header to axially align the driven shaft and drive shaft as the harvesting header approaches the feeder housing during the attachment to accommodate differing header drive shaft orientations.

Abstract: A compression roll housing for an agricultural machine having opposing front and rear ends for connection to parts of the machine, an upper and a lower panel and two opposing side panels. Each of said side panels is provided with at least one substantially vertical elongated aperture for receiving a shaft of a compression roll. Each of the side panels is also provided with a horizontal aperture which extends across the at least one elongated aperture to the front or rear end of the housing.

Abstract: A compression roll housing (1) for an agricultural machine having opposing front and rear ends (11b, 12) for connection to parts of the machine, an upper and a lower panel (16) and two opposing side panels (15). Each of said side panels is provided with at least one substantially vertical elongated aperture (7) for receiving a shaft (3) of a compression roll (2a). Each of the side panels is also provided with a horizontal aperture (8) which extends across the at least one elongated aperture to the front or rear end of the housing.