Gasboy 9120K Series Installation - Manual (Page 59)

MDE-4567C 9120K and 9820K Series AST Pumps Installation and Operation Manual · September 2008 Page 55
Post Startup Tests 9820K Startup and Test
Tightness
After determining that the pump is operating satisfactorily and the system is fully primed,
check the pump and piping to ensure that all connections are tight.
Calibration
All Gasboy pumps are adjusted for accurate measure at the factory. However, since the
conditions of the installation and fuel types can affect pump accuracy, it is the responsibility of
the installer to check the pump for accuracy and make any required adjustments. It is the
owner's responsibility to report this device to the local Weights and Measures officials for
their inspection before the unit is put into service.
Each meter is equipped with a mechanism for calibration, located on the side of the meter. To
adjust the volume dispensed, proceed as follows:
1 Check the meter registration by delivering the product to a reliable, accurate, 50 or 100-gallon
prover can or a smaller can size approved by local Weights and Measures for the flow rate of
the unit.
2 Remove the seal wire from the seal pin ( Figure 8-1 ).
3 Remove the seal pin and turn the wheel to adjust measurement ( Figure 8-1 ).
• Turn clockwise to decrease the amount in the prover to match the display.
• Turn counter-clockwise to increase the amount in the prover to match the display.
Note: Moving the wheel one hole position changes the calibration by 2/3 cubic inch per 5
gallons (18.9 liters). To change by half of this amount, you may use the alternate seal
pin hole on the opposing side of the calibration wheel.
4 Repeat the process until the volume in prover can and the amount recorded are within
tolerance.
5 After calibration is complete, reinstall the seal pin and secure in place using a seal wire.
Figure 8-1: Index Disc