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Installation Guide Flow Calibration Test <br /> Flow Calibration Test <br /> 4. With the nozzle closest to the pump fully open and dispensing into an approved 5 gallon container or gas <br /> tank of a vehicle, record the gallons pumped for a timed interval of 15 seconds. For best accuracy,wait <br /> 15 seconds after lifting the dispenser handle before beginning the timed interval. <br /> 5. Calculate the flow rate (gm) by multiplying the gallons pumped in 15 seconds by 4.The result is in <br /> gallons per minute. <br /> 6. Increase or decrease the pressure if necessary to change flow as needed.This is accomplished by <br /> rotating switch SW (ref.Table 3 on page 11). <br /> 7. Repeat the Flow Calibration Test after every adjustment of pressure and until flow rate does not exceed <br /> 10g . <br /> 21 <br />