Graco Pump Lower 24F427

Stop the pump at the middle of its stroke

Remove the 2-piece shield covering the coupling assembly

Unscrew the coupling nut from the motor shaft

Lift the motor shaft and remove the coupling nut and collars

Remove the collar (50) and screws (51), cap (49), and manifold and bottle assembly (48)

Ensure no static charge buildup

Remove and empty the reservoir bottle

Clean any residue from the reservoir bottle

Clean screen (Z) of inlet check valve (48c‡)

Check if check valves are sealing properly