Servicing
Diaphragm pump N820.18 CN / N840.18 CN
30
Translation of Original Operating Instruction, KNF 317428-338560 06/22
10.1 Servicing schedule
WARNING
Risk of injury when not using original
parts
Failure to use original parts will result
in a loss of pump functionality and
safety.
The validity of the CE conformity is
rendered void if genuine parts are not
used.
à
Use only genuine spare parts
from KNF when performing main-
tenance/repair work.
Component
Servicing interval
Pump
à
Inspect the pump periodi-
cally for external damage
or leakage.
à
Periodically check for no-
ticeable changes to
noises and vibrations.
Diaphragm and valve plates/
seals
à
At the latest, replace
when the pump flow rate
decreases.
Tab.13: Servicing schedule
