Special Features:

Air motor powered emergency backup hydraulic power unit for elevator door system; item also includes relief valve, return filter, pressure gauge and gauge shutoff

Properties:

An item consisting of power driven hydraulic pump(s) with instruments, controls and the like assembled on a common mounting. It may include engine(s) or motor(s) or be designed to be mounted on a vehicle which provides the power. It may include a hydraulic fluid reservoir, pressure fluid filters, accumulators, boosters, hose and hose reels or racks. It is used in the operation of hydraulic tools or equipment and/or checking of hydraulic systems. See also test stand, hydraulic system components. Excludes filler, hydraulic system, guided missile.