Dellmeco DM 15/30, Инструкция по эксплуатации

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19 I DELLMECO I AODD DIAPHRAGM PUMPS
9.3. Shutdown
Close the air valve of the pump and shut off the supply air.
10. Method of cleaning
1) Remove the hose from the suction side of the pump.
2) Close the flow valve on the discharge side and open the drain valve. Then start air pressure for a while to
discharge possibly much fluid remaining inside the pump.
3) Remove the hose from the discharge side, and attach different hoses to the suction side and the discharge side for
cleaning.
4) Be ready with a vessel with cleaning solution, the kind appropriate for the type of fluid pumped. Next connect the
suction-side and the discharge-side hoses of the pump.
5) Start the pump air pressure slowly, and let the cleaning solution circulate for sufficient cleaning.
6) Flush with clean water.
7) Remove the hose from the suction side of the pump, run the pump for a while to purge the pump of remaining fluid
as much as possible.
!
CAUTION
!
WARNING
!
CAUTION
!
CAUTION
When the pump is shut down while pumping slurry, particulate matter contained in the slurry will be
deposited and get stuck inside the out chamber. Therefore after finishing work the pump must be purged of
the remaining fluid. Otherwise when starting the pump again, the diaphragm may yet damaged and the
centre rod may bend.
Keep a vessel below the relief valve for any drain off.
Be careful! - Fluid under pressure will gush out the moment you open the valve.
If the pump is unused for a prolonged period, purge and clean it.
Make sure that compressed air is not supplied to the pump BEFORE you start cleaning the pump.
Make sure that the pump is not pressurized BEFORE you start cleaning the pump.