KNF N0150 EX, Translation Of Original Operation And Installation Instruction

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Diaphragm pump N0150 EX Servicing
Translation of Original Operation and Installation Instruction, english, KNF 321729 11/19 33
9.2 Cleaning
9.2.1 Flushing the pump
WARNING
Risk of explosion by flushing the pump with air
à
In potentially explosive areas or when using
the pump with explosive media, only permit
specialist to flush the pump with inert gas.
à
Before switching off the pump under atmospheric conditions, flush for
several minutes with inert gas.
If there is no risk of explosion, flushing can also be performed with
air.
9.2.2 Cleaning the pump
WARNING
Risk of explosion from electrostatic charging of the
components
à
Only clean the pump with a damp cloth.
à
Only clean the pump with a damp cloth and non-flammable cleaning
agents.
à
If compressed air is present, blow out the components.
9.3 Changing diaphragm and reed valves
Requirements à
Disconnect the motor from mains and ensure that it is voltage-free.
à
Allow the pump and the motor to cool.
à
Clean the pump and free the pump of hazardous materials.
à
Remove the hoses/pipes from the pneumatic pump inlet and outlet.
With multi-headed pumps, parts may be interchanged between the individ-
ual pump heads.
à
Change the parts of the individual pump heads that are to be ex-
changed one after the next.