KNF N 2400.15, Operating And Installation Instructions

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Diaphragm pump N 2400.15 Servicing
Translation of original Operating and Installation Instructions, english, KNF 308934-308937 09/18 27
9. Servicing
9.1. Servicing schedule
Component Servicing interval
Pump
-
Regular inspection for external dam-
age or leaks
-
Regular check for noticeable chang-
es in noise and vibration
Tube connection
-
Regular inspection for external dam-
age or leaks
Diaphragm and reed
valves
-
Change if pressure or flow rate of
the pump changes for no apparent
reason
-
Replace if bent or worn
-
Replace at the latest, when pump
output decreases
Tab. 13
9.2. Cleaning
9.2.1. Flushing pump

KNF recommends: When transferring aggressive media, flush
the pump under atmospheric conditions some minutes with air
(or, if necessary for safety reasons, with an inert gas) prior to
switch-off to increase the service life of the diaphragm.

Drain the media safely.
9.2.2. Cleaning pump
CAUTION
Danger of burns from hot pump parts
The pump head or motor may be hot even after the
pump has been shut off.

Allow the pump to cool after operation.
CAUTION
Health hazard due to dangerous substances
in the pump
Depending on the substances transferred, caustic
burns or poisoning are possible.

Wear protective clothing if necessary, e.g. pro-
tective gloves.

Clean pump with suitable measures.
Ensure that no liquids enter the inside of the housing during
cleaning work.

Only use solvents for cleaning if the head materials cannot be
attacked (check the resistance of the materials).

If compressed air is available, blow out the components.