Specifications include, but are not limited to: Engine The pump shall be driven by a Honda GX100 4-stroke gasoline engine. The engine shall have a gasoline tank of at least 1.8 qts. (1700cc), that allows the pump to run for three continuous hours. For ease of operation the fuel tank shall incorporate a highly visible fuel level indicator. Pump To provide maximum efficiency during rescue operations, the hydraulic pump shall be a 3-stage axial design with two automatic sequence valves, switching to 2nd stage at approximately 2,175 psi (150 bar), to 3rd stage at approximately 4,350 psi (300 bar) to allow full pressure to be built up to a maximum working pressure of 10,443 psi (720 bar). The pump shall be protected with an internal safety valve. In addition, the pump must have an external safety valve, factory set at 10,443 psi (720 bar).