Adjustment Tool for Adjusting the Chopper Knives of a Forage Harvester
AssigneeAGCO International GmbH
InventorsChristoph Albrecht, Clemens Prestele
Life of this patent
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Abstract
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.
Claims15
An adjustment tool for adjusting the chopping knives of a chopper drum of a forage harvester, the chopper knives being attached to a support which is coupled to the chopper drum, wherein the adjustment tool comprises:
- a frame;
- a pair of fixings, each fixing of the pair configured to engage with a bore in a chopper knife support;
- a set of edge alignment pins projecting from the frame for engaging with one or more non-wearing edges of a chopper knife, thereby setting a position of the one or more non-wearing edges of the chopper knife relative to the bores,
- wherein the edge alignment pins are positioned for alignment of a chopper knife with a predetermined amount of wear.
A method of adjusting a chopper knife of a chopper drum of a forage harvester, comprising:
- fixing an adjustment tool over the chopper knife using a pair of fixings configured to engage with the bores of a chopper knife support through the chopper knife;
- loosening the chopper knife bolts of the chopper knife to the support;
- adjusting the chopper knife position such that one or more non-wearing edges butt against a set of edge alignment pins of the adjustment tool, thereby setting a position of the one or more non-wearing edges of the chopper knife relative to the bores;
- tightening the loosened chopper knife bolts;
- and
- removing the adjustment tool,
- wherein the edge alignment pins are positioned for alignment of a chopper knife with a predetermined amount of wear.
Dependencies are inferred from the claim text.