Manual, hydraulically operated tool

An improved hydraulically-operated tool of the type having a cylinder chamber closed at one end, a hydraulic ram within the cylinder chamber, a fluid reservoir, hydraulic pumping means fed by the reservoir for driving the ram out of the cylinder chamber, and work engaging elements operatively connected to the ram and cylinder chamber, wherein the improvement comprises mounting the pumping means within the ram, the pumping means including a pump chamber within the ram, the chamber having its major axis extending parallel to the direction of movement of the ram, a plunger fitted within the chamber, check valve means mounted in the ram, and wherein the tool further includes means for providing fluid communication between the reservoir and the check valve means and means mounted on the ram for operating the plunger in the pump chamber to pump fluid from the reservoir through the fluid communication means and the check valve means into the cylinder chamber at the closed end to force the ram to move out of the cylinder chamber thereby operating the work engaging elements.