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Before You Begin Introduction <br /> Important If you need to install a Precision check valve in an FE Petro pump, be sure to order a <br /> replacement O-ring[Figure 1 on page 4]for the check valve housing. <br /> If the correct hardware for precision line leak testing is not installed, the system will not <br /> detect leaks less than 3.0 gph. In this situation, the system will always pass 0.1 gph tests, <br /> but the results will not be valid. <br /> 5. To run 3.0 gph tests only with Red Jacket pumps,you must purchase one of the <br /> adjustable functional elements below.With this type of system,you can not do <br /> precision line leak testing. <br /> ❑ Standard version(Part No.323-006-5)--use with these fuels: gasoline,diesel, <br /> kerosene,gasoline with 10%ethanol,gasoline with 10%methanol and <br /> gasoline with 15%MTBE <br /> ❑ AG version(Part No.323-007-5)—use with same fuels as Standard version <br /> plus, 100%ethanol, 100%methanol,any mixture of gasoline with ethanol,and <br /> any mixture of gasoline with methanol <br /> You must also set the relief pressure on the adjustable functional element to 20-25 <br /> psi.Refer to the manufacturer's documentation for instructions. <br /> 0 0 <br /> o e <br /> 0-Ring(FE PETRO <br /> /part no.400211238 <br /> or 400333238) <br /> /Check Valve <br /> e <br /> rro <br /> G� <br /> Figure 1. Location of Precision Check Valve in FE Petro Pump <br /> 4 576013-902, Revision G <br />