Operation
3A8109A
11
Prime the Pump
1.
Reconnect the Inlet (E) and Outlet (F) Lines that
were disconnected in the
2.
Verify all system valves are open.
3.
Verify all connections and fluid lines are tight.
4.
In order to prime the pump, slowly loosen the Prim-
ing Port Plug (M) approximately 1/2 to 1 turn. See
F
IG
. 1 on page 5.
5.
Turn the pump on and begin cycling.
6.
Fluid will begin dispensing from the port pointed
downwards. The pump is primed when discharge
has transitioned from air, to bubbly liquid chemical,
to pure liquid chemical.
7.
Tighten the Priming Port Plug (M) and verify that
fluid has stopped draining from the port.
Calibrate Chemical Dosage
1.
Follow the instructions provided with your calibration
gauge and Harrier EZ-JR controller in conjunction
with baseline chemical dosage settings in
Baseline Chemical Dosage Settings
2.
Adjust the cycle rate on time on your Harrier control-
ler accordingly after the calibration test is per-
formed. Increasing the cycle rate of the pump will
increase the pump flow rate, while decreasing it will
decrease the flow rate.
3.
Repeat the instructions provided with your calibra-
tion gauge to verify changes.
4.
Repeat steps 2 and 3, as necessary, until the
desired flow rate is achieved.
NOTE:
Flow rate and time settings are approximate, as
every installation will vary due to external factors. Graco
recommends using the on/off settings on this chart as a
starting point and using a calibration column to fine tune
the flow output. Adjusting on the time slightly up or down
to fine tune the injection flow rate is recommended.
NOTICE
To avoid potential damage to equipment, verify that all
system valves are open before priming the pump.
