332312A - E4-5 Meter-Mix Dispense System, Operation ... - Graco Inc.

Setup3. Prime the Material Line ConnectionsAfter the pumps have been primed, open the MaterialBall Valves located on top of the machine and follow oneof these two procedures.Purging through each hose individually.a. Perform Pressure Relief Procedure, page 33.b. Disconnect the line from the shutoff valve at themanifold and place the end in a waste containerto catch any material that will be dispensed outof the hose.NOTE: Failure to do the above step will result in airentrapment in the material and will produce bad products.Purging through the Manifold and Mixer Assembly.a. Verify the screw rotate signal is in the low state.b. Select “Ratio Sample” on the “Mode SelectScreen” and then press the “Start Pump” buttonon the “Monitor Screen”.c. Manually open the outlet valves by pushing theoverride and turning the override clockwise untilit locks.NOTICETo avoid machine damage, do not cycle the screwwithout any lubrication. Refer to press manufacturerprocedures for more detail.d. Remove the cleanout plug on the SA92X-G isolatorgauge.c. If the automatic air pressure regulator is notinstalled, set the Main Air Regulator to 5 psi (35kPa, 0.3 bar).d. Select “A-Prime” or “B-Prime” on the operatorinterface panel.e. Press the “Start Pump” button on the “MonitorScreen” and the material should begin to flow.Adjust the Main Air Regulator to increase ordecrease the flow.f. Press the “Stop Pump” button on the “MonitorScreen” when all the air is purged.e. Continue pumping material through the system.Verify material cures properly prior to injectingthe material into the mold.f. Press the “Stop Pump” key.g. Install the cleanout plug on the SA92X-G isolatorgauge.h. Manually close the outlet valves by pushing theoverride and turning the override counter-clockwiseuntil it unlocks.g. Reattach and tighten the hose to prevent leakingand repeat the procedure for the other side.332312A 29