Grundfos Alldos DDI-209 User Manual - Industry Surplus Australia

7.1.4 Assisting suction for systems without Plus 3systemAt the dry suction/discharge valves:1. Remove the suction line.2. Hold a small container of water directly next to thesuction valve and draw water until the dosinghead is full.3. Reinsert the suction line.7.1.5 Starting the pump1. Open the suction and discharge isolating valves,if installed.2. Open the deaeration valve of the dosing head byapproximately 1 turn.3. Let the pump run in continuous operation:– Switch on the power supply.– Press the "Start/Stop" button and keep itpressed.– The pump switches to continuous operation atmaximum stroke frequency.4. Leave the pump running until the dosed mediumis free of air bubbles and, for the Plus 3 system,until the calibration tube is full.– Leave the pump DDI 0.4-10 running incontinuous operation for approximately 5 min.5. Carefully close the deaeration valve.– The pump is now ready for operation.7.1.6 After initial start-up of pumps with Plus 3system• After initial start-up, remove the adhesive label(M) from the cover (L), see figs 3 and 29.Fig. 29 Adhesive label7.1.7 Tightening dosing head screwsCautionNach Inbetriebnahme:Aufkleber entfernenAfter initial start-up and after each timethe diaphragm is changed, tighten thedosing head screws.After approximately 6-10 operatinghours or two days, cross-tighten thedosing head screws using a torquewrench.Maximum torque:DDI 0.4 - DDI 5.5: 2.1 Nm.DDI 13.8 - DDI 20: 2.5 Nm.TM03 6247 45067.2 Operating the pumpNote7.3 ShutdownNoteTo operate the pump, see sections8. Operation and 10. Maintenance and,if necessary, section 11. Fault findingchart.WarningRisk of chemical burns!Wear protective clothing (gloves andgoggles) when working on the dosinghead, connections or lines!Do not allow any chemicals to leak fromthe pump. Collect and dispose of allchemicals correctly!If possible, rinse the dosing headbefore shutting down the pump, e.g.by supplying it with water.7.3.1 Switching off / uninstalling1. Switch off the pump and disconnect it from thepower supply.2. Depressurise the system.3. Take suitable steps to ensure that the returningdosing medium is safely collected.4. Carefully remove all lines.5. Uninstall the pump.7.3.2 Cleaning1. Rinse all parts that have come into contact withthe medium very carefully:– lines– valves– dosing head– diaphragm.2. Remove any trace of chemicals from the pumphousing.7.3.3 StorageStorage of the pump:1. After cleaning (see above), carefully dry all partsand reinstall the dosing head and valves, or2. change the valves and diaphragm.See section 10. Maintenance.7.3.4 DisposalDisposal of the pump:• After cleaning (see above), dispose of the pumpin accordance with the relevant regulations.31