SAE International HYDRAULIC EXCAVATOR DIGGING FORCES J1179_197703

This Recommended Practice applies to mobile hydraulic excavators which are either crawler or wheel mounted, with or without outrigger members. (A mobile hydraulic excavator is defined as "a self-propelled machine with an upper structure capable of continuous rotation and which digs, elevates, swings, and dumps material by action of the boom and arm or telescoping boom with bucket.")