1. Scope--This SAE Standard defines the expectations for free-standing, nonintegral, nonpressurized reservoir, flooded inlet type, industrial hydraulic power units used on machine tools and equipment for the automotive industry.

These exclude power units used for intermittent and/or noncontinuous duty cycle and pressurized vessels, such as accumulators and air over oil systems.

Objectives were set and accomplished to develop a consensus of common features which enhance the power unit performance, manufacturing quality, and maintainability. Some of those features are:

a. Identification b. Common sizes and construction c. Conductors and connectors d. Pump/motor groups e. Filters