Method of controlling crop flow to crop collection device

A method of conveying crop material to a baling chamber, comprising:

• receiving crop material at a crop inlet of a crop collection device comprising at least a first conveyor and second conveyor, the crop inlet positioned at a front end of the crop collection device, and a crop outlet positioned at a rear end of the crop collection device;
• the first and second conveyor having respective first and second crop conveying surfaces;
• driving by a drive arrangement comprising at least one drive roll at least one of the first and second conveyor;
• and
• controlling with a controller operably connected to the drive arrangement the direction of at least one of the first and second conveyor with respect to the other of the first and second conveyor in a first direction conveying contacting crop material rearward toward the outlet in a first mode and in a second direction away from the outlet accumulating contacting crop in a second mode, wherein the conveyers are oriented such that in the first mode crop material supported on the first crop conveying surface is fed to the second crop conveying surface;
• wherein the controller is configured to control the drive arrangement to move the first conveyor and the second conveyor to convey contacting crop in a fore and aft direction independent of a direction of movement the drive system is driving the movement of the other of the first and second conveyor.