Prime The Pump - Graco Python A25177 Instructions Manual

Operation

Prime the Pump

1. Verify all connections and fluid lines are tight.
2. In order to prime the pump, turn the prime valve (20)
counter-clockwise.
NOTE: PCI-xxx-xxH pumps feature a one-piece valve
(19) that requires a hex wrench to turn. See Configura-
tion Number Matrix, page 4.
3. Turn the timing valve knob (122) located on the tim-
ing valve (22) counter-clockwise slowly. This will
turn the pneumatic supply on to the pump and begin
cycling.
4. Keep the pump cycle rate less than 1 cycle every 3
seconds. The pump is primed when discharge from
the prime valve (20) has transitioned from air, to
bubbly liquid chemical, to pure liquid chemical.
5. Close the prime valve (20) tightly and verify that
fluid has stopped draining from the port.
NOTE: PCI-xxx-xxH pumps feature a one-piece valve
(19) that requires a hex wrench turn.
18 3A4386C