Power pack size 4 is equipped with 2 DC twin pump units and is therefore the most powerful unit within the Reckmann range. This unit’s large reserve power capacity makes it possible to maintain sufficient system pressure with reduced oil flow should one of the pumps fail completely. By using anodised aluminium throughout we have achieved maximum corrosion resistance and a weight of only 79 kg (174 lbs.) with up to ten functions. The unit is suitable for controlling applications from any manufacturer, e.g. roller furlers, mast furling systems, foot outhauls, hydraulic winches, windlasses and the widest variety of ramps, doors and platforms. If your desired application isn't listed, please ask us. We will be happy to advise you. The unit is supplied fully wired to an electrical control box (circuit board), which facilitates quick and convenient connection to a push button cable via the terminal block. Pressure stage control is purely mechanical and overload protection does not use any electronic components, thus guaranteeing fault free operation. The special design of this unit provides for convenient and time saving maintenance because all parts are accessible without having to open the fluid reservoir. All functions are indicated by LED's, thus simplifying fault finding. An integral fan and thermal switch prevent potential overheating of the 3 kW electric motor during overload conditions. The unit is equipped with an oil sight glass for visual inspection of the fluid level, and an additional electrical oil level check will report any loss of fluid. The suction line of the pump incorporates a filtering system, which protects valves and motors from contamination.