Servicing
Diaphragm pump N96_AC
24
Translation of Original Operating and Installation Instruction, english, KNF 329772-329775 06/22
8 Servicing
CAUTION
ESD-sensitive parts (ESDS)
Failure to observe the ESD protection provision
acc. to IEC 61340-5-1 can result in total or partial
damage to the pump.
à
Maintenance of the pump may only be per-
formed by a qualified person in an ESD-pro-
tected area (EPA) acc. to directive IED
61340-5-1.
NOTICE
Servicing the pump
Damage to the pumps can result from failure to
observe the applicable legal regulations and pro-
cedures for the location or intervention by un-
trained or uninstructed personnel.
à
Servicing may only be performed according to
the legal regulations (e.g. work safety, envi-
ronmental protection) and provisions.
à
Servicing may only be performed by special-
ized personnel or trained and instructed per-
sonnel.
8.1 Servicing schedule
Component
Servicing interval
Pump
à
Perform periodic inspections for
external damage or leakage.
à
Periodically check for noticeable
changes to noises and vibra-
tions.
Gas connections
à
Perform periodic inspections for
external damage or leakage.
Diaphragm and valve plates
à
At the latest, replace when the
pump flow rate decreases.
Silencer (accessories)
à
Replace if soiled.
Tab.14
8.2 Cleaning
8.2.1 Flushing the pump
When transferring dangerous and environmentally hazardous media, KNF
recommends flushing the pump with air at atmospheric pressure for a few
minutes prior to switch-off (if necessary for safety reasons: with an inert
gas) to extend the service life of the diaphragm.
à
Discharge the media safely.
Summary of Contents for N96K E-W
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