Abstract: This invention relates to small-sized electrohydraulic actuators for use in adjusting aircraft control surfaces. A problem associated with such actuators is that they must be of a light-weight and efficiently packaged design. The present invention is designed to operate at relatively low hydraulic pressures. A balanced, double-acting hydraulic ram (10), connectable between a support (14) and a member to be moved relative to the support, includes a cylinder (18) divided into first and second chambers (20, 22) by a movable piston (19). A pump (26) having high and low pressure ports (38, 40) is connected to the cylinder (18) by first and second conduits (42, 44). A third conduit (48) connects an accumulator (46) to the first and second conduits (42, 44). A valve (52) is positioned in the third conduit (48), and blocks high pressure flow from a high pressure port in the pump to the third conduit (48).