A bale ripper assembly for pulling plant material from a bale may comprise a bale ripper device supportable on an auger of a feed mixer apparatus and having a first face and a second face with a perimeter. The perimeter may include a leading perimeter portion for orienting in a direction of movement of the device when the device is mounted on the auger of the mixer apparatus and the auger is rotated. The leading perimeter portion of the perimeter may include a plurality of sections with each section of the plurality of sections being oriented at an angle with respect to an adjacent said section of the leading perimeter portion. An outboard pair of the sections form an outboard tooth of the bale ripper device. The leading perimeter portion of the perimeter may have an edge face that extends between the first and second faces, and the edge face may be blunt.

An adjustment tool is provided for adjusting the chopping knives of a chopper drum of a forage harvester. A frame is provided with a pair of fixings for engaging with a bore through the chopper knife. Edge alignment pins project from the frame for engaging with non-wearing edges of a chopper knife, thereby setting a position of non-wearing edges of the chopper knife relative to the bores. The edge alignment pins are positioned for alignment of a chopper knife with a predetermined amount of wear.

An agricultural baler includes: a chassis; a pickup carried by the chassis and including a plurality of rotatable tines configured to pick up crop material; a baling chamber carried by the chassis and configured to form a bale from crop material; and a feeding assembly carried by the chassis and configured to receive picked up crop material from the pickup and supply crop material to the baling chamber. The feeding assembly includes: a rotatable rotor carrying a plurality of projections configured to feed crop material to the baling chamber as the rotor rotates; and a shear bar disposed between the pickup and the rotor and configured to cooperate with the projections carried by the rotor to condition crop material before the crop material is fed to the baling chamber by the projections.

Chopping blade (10), having a basic body (11), which has a fastening portion (12) for fastening said chopping blade to a chopping drum and a cutting portion (13) which is angled in relation to the fastening portion, and having a crop-guiding element (15) which is fastened to the fastening portion (12) and is intended for guiding chopped harvested crop, wherein a guide surface (16) of the crop-guiding element (15) has a curved contour. A distance (a) between the beginning of the guide surface (16) of the crop-guiding element (15) and a transition edge (14) between the fastening portion (12) and the cutting portion (13) of the basic body (11) is between 4 mm and 8 mm. The guide surface (16) runs rectilinearly in a first portion (18) with a length (b) between 4 mm and 8 mm, wherein said first portion (18) encloses an angle () between 18 and 22 with the fastening portion (12). The first portion (18) merges into a concavely curved second portion (19), the radius of curvature (Rx) of which is between 21 mm and 25 mm and which has a wrap angle () between 29 and 33. The second portion merges into a concavely curved third portion (20), the radius of curvature (Ry) of which is between 18 mm and 22 mm and which has a wrap angle () between 24 and 28. The third portion merges into a convexly curved fourth portion (21). A maximum height of the crop-guiding element is between 24 mm and 30 mm.