An agricultural machine (1) arranged to perform an agricultural field operation comprising picking up harvested crop from a swath, the agricultural machine (1) comprising: a pick-up mechanism (3) arranged to pick up the harvested crop from the swath, the pick-up mechanism (3) having a working width (W) that defines a physical working width (W) of the agricultural machine; and a recording system (18) arranged to record a worked area of the field as the agricultural machine performs the field operation, wherein the recording system (18) is arranged to determine the worked area from a virtual working width for the agricultural machine (1), which is greater than the physical working width (W) of the agricultural machine, such that at least part of the worked area recorded by the recording system (18) is located beyond the physical working width (W) of the agricultural machine.

The present invention relates to a storage tank for hydraulic oil, the storage tank being arranged in a hollow frame profile of a frame for a harvesting apparatus.