Abstract: The disclosure provides an integral hydraulic system, which includes a valve board, a lift cylinder and a reservoir connected into one integral valve body, wherein the integral valve body is further connected to an electric motor and a hydraulic gear pump, so as to form a complete power unit that includes all the valves utilized in the different functions that control a hydraulic fluid circuit in lifting and lowering of a plunger rod of the lift cylinder.

Abstract: The disclosure provides pallet trucks having a selective turning radius. The pallet trucks include load wheel systems having at least two load wheel assemblies below each fork. A forward load wheel assembly is located near the forward end of the fork and a central load wheel assembly is located near the center of a central portion of the fork. A first turning radius is defined by the distance between the forward load wheel assembly and a directionally adjustable rear wheel when the forward load wheel assembly supports the fork. The central load wheel assembly may be selectively deployed to lift and support the fork to yield a second, shorter turning radius defined by the distance between the central load wheel assembly and the directionally adjustable rear wheel.