Ensure all chain links and flights, with the exception of the primary, are properly padded. Use ample padding on deflectors, sharp points and any other place where bruising could possibly occur on harvesting equipment. Adjust the digger blade angle so that there is a smooth transition from the blade to the primary chain. Maintain a proper chain speed ratio to ensure proper soil separation and, at the same time, to keep the conveyors as full of potatoes as possible. Keep primary chain agitation with shakers to a minimum.
Hydraulic shakers provide more precise control over agitation.
Keep conveyor chains sufficiently tight to avoid sagging and whipping. Consider installing a deflector lip on the end of the boom to reduce bruising. Check frequently for bruising at various points along the harvesting system.