KNF LABOPORT N86.18 Originalbetriebsanleitung Seite 79

Diaphragm pump N86.18 / N811.18
3 Head plate
4 Head plate
screw
5 Cover
6 Housing cover
Translation of Original Operating and Installation Instruction, KNF 121435-121438
02/23
9.3.1 Replacing diaphragm and valve plates [N86.18]
The diaphragm and valve plates/seals are to be replaced in
the following order:
a.) Remove pump head
6
Fig.4: Remove pump head
1. Mark the head plate (3), cover (5) and housing cover (6)
with a continuous pencil stroke. This helps to avoid incor-
rect assembly later.
2. Loosen the four head plate screws (4) and remove the
head plate (3) from the pump housing together with the
cover (5).
3. Mark the intermediate plate (2) and the housing (1) with a
continuous pencil stroke.
4. Remove the intermediate plate (2) from the housing (1).
4 3
Servicing
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