<p>Agricultural harvesting machine, especially a self-propelled field chopper (1), comprises a harvested material collector (2) as an attachment that uses conveying and guiding elements driven by drive devices to collect the harvested product and feed it to a feed and processing device. Control devices act on the drive for the attachments and the drive for the feed device (4) so that when the harvested product collector moves from a working/operating position near the ground into an at least partly raised position, at least one considerable reduction in speed of the driven components of the harvested product collector and/or of the feed device is automatically implemented. Preferred Features: The control devices consist of an electronic control system.</p>
