Gasboy 580 Series - Manual (Page 24)

Startup and Operation Post Startup Tests
Page 20 MDE-4766 Series 580 Installation/Operation/Parts Manual · April 2009
4 Push the reset button to zero the register.
5 Dispense fuel. Check all plumbing for leaks at this time.
6 Push the switch rod and knob assembly in to shut off the pump motor. Open the nozzle. No
fuel should be dispensed. The amount delivered should be displayed on the register. If an
optional pulser kit is attached, it will be supplying pulses which may be recorded by an
external monitoring system. Verify if the external monitoring system is reading properly.
7 Repeat steps 3 through 6 several times to ensure that the pump is operating satisfactorily.
Post Startup Tests
Voltage
The incoming voltage to the pump should be checked and any reading not within 10% of rated
voltage should be corrected before testing is continued. When dealing with suction pumps, it is
a good practice to note down voltage readings while the suction pump is operating on bypass
(turned on but not dispensing product) and also while making a delivery. Any voltage drop in
excess of 10% during either of these operating states should be considered a low voltage
condition. Corrective action should be taken to ensure adequate power supply to the pump.
Tightness
After determining that the pump is operating satisfactorily and the system is fully primed,
check the pump and piping to make sure that all connections are tight.
Meter Calibration
The 580 Series Pump is adjusted for accurate measure of the specified fuel (gasoline or diesel)
within +.05 gallons at the factory. However, since the conditions of the installation can affect
pump accuracy, it is the responsibility of the installer to check the pump for accuracy and
make any needed adjustments.
Choose the flow rate at which the meter will be used most often for the zero calibration point.
For example, if the pump is being used with an automatic nozzle, calibrate with the nozzle set
on the middle or top notch position, whichever is used most frequently.
Use a certified seraphin can to conduct the test. Fill and drain the test measure to completely
wet the interior surfaces. Reset the register to zero and deliver an exact amount into the test
can at the selected flow. Read the level of the liquid in the sight glass on the scale in + cubic
inches.
The calibration adjustment screw is located on the underside of the meter just behind and to
the left of the meter inlet. Using a flat-blade screwdriver, turn the adjusting screw clockwise to
correct for plus cubic inches or counterclockwise for minus cubic inches in the test measure.
Count the number of full turns and fractional turns each time for reference in judging the
number and direction of any additional turns required to calibrate the meter to exact zero.