Solenoid valves are control units which, when electrically energized or de-energized, either shut off or allow fluid flow. Three-way valves have three port connections and two valve seats. One valve seal always remains open and the other closed in the de-energized mode. When the coil is energized, the mode reverses. The 3-way valve is designed with a plunger type core. Various valve operations can be obtained according to how the fluid medium is connected to the working ports. The fluid pressure builds up under the valve seat. With the coil de-energized, a conical spring holds the lower core seal tightly against the valve seat and shuts off the fluid flow. When the coil is energized the core is pulled in, the spring-loaded upper core seal seals off the valve seat. The fluid medium now flows through the valves.

Three-wheel electric forklifts consist of cushion tires. It is used for unloading trucks, moving pallets and other loads throughout a warehouse or on smooth surfaces. It capacities range from 3,000lbs - 5,000lbs.

Three-wheel fork-lift truck having one rear steering wheel to be turned by a compact steering assembly of simple construction provides sufficient space for accommodating various kinds of attachments. The steering assembly is composed of a pinion provided with the rear steering wheel, a rack engaged with the pinion and a hydraulic cylinder as an actuator for moving the rack in the axial direction. By moving the rack in lateral direction either to the right or left, the pinion is rotated to turn the rear steering wheel via a steering shaft.