All-Flo T038-NHT-PTTT-000 3/8 PTFE - Manual (Page 12)

12 I All-Flo Pump Co.
Maintenance
Cleaning the Pump
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.
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CAUTION
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WARNING
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Make sure that compressed air is not supplied to the pump BEFORE you start cleaning the pump.
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Make sure that the pump is not pressurized BEFORE you start cleaning the pump.
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Be extremely careful when removing piping - the fluid will run/flow out.
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After cleaning with clean water, turn the pump upside-down to let the water flow out.