harvesting apparatus can be preadjusted for optimal operating conditions as mentioned above macerating apparatus comprising crushing rolls impact rotor and deflector hood assembly of the type described above is disclosed in pending application u s ser no 08 884 277 filed jun 27 1997 hereby incorporated by reference now turning to fig3 press assembly 16 includes an upper belt 31 and lower belt 30 both of which are trained in a generally s shaped path around aligned pressing rolls 32 33 34 roll 33 is driven and is rubber covered to provide what is commonly referred to as a greater 34 foot print 34 between the belts at the nip points this increases the time the material is held between the rolls under high pressure conditions additionally the use of rubber roll surfaces increase the coefficient of friction between the roll surface and the lower belt rolls 32 34 are urged toward the driven roll to press macerated crop m as it enters the nip between upper belt 31 and lower belt 30 pressing takes place as the material is urged rearwardly along a path having a general s shaped configuration the s shaped path is formed between driven roll 33 and adjacent press rolls 32 34 as the material is transported between the belts along this path it encounters two pinch points or nips at diametrically opposing locations between the outer surfaces of adjacent rolls the first pinch point is defined by rolls 32 and 33 and the second pinch point is defined by rolls 33 and 31 the belts constrain the material between the pinch points and.