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This SAE Standard provides a uniform method to calculate the lift capacity of scrap and material handlers, establishes definitions and specifies machine conditions for the calculations. This document applies to scrap and material handlers as defined in SAE J2506 that have a 360 degrees continuous rotating upper structure. It does not apply to equipment that is incapable of lifting a load completely off the ground. This document applies to those machines that are crawler, wheel, rail and pedestal or stationary mounted.

This standard applies to hydraulically operated backhoes (see SAE J49). This standard describes a uniform "over end" and "full swing arc" lifting capacity rating for backhoes. It is based on the actual capacity of the machine to lift and support a load under stable conditions. Rated lift capacities will be specified for both the boom and the dipperstick and will be shown on a lift capacity chart Figure 1.

This recommended practice covers mobile hydraulic excavator controls and the specific arrangement and direction of motion for the primary controls.

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.”)