Servicing
Diaphragm pump N838_E
40
Translation of Original Operating and Installation Instruction, KNF
347394-347605 09/23
12. Pull the two pump heads apart and remove the connec-
tion tubes (13) with the O-rings (14).
13. Change the O-rings on both connection tubes.
14. Put the connection tubes with the new O-rings(14) back
into the two pump heads.
Mounting the pump head
For two-headed pumps, the following steps must be per-
formed on both pump heads at the same time.
1. Move the diaphragm over the fan wheel to top dead cen-
ter.
2. Place the pump head(s) (consisting of intermediate plate
(2) with valve plates/seals (6) as well as head plate (3)) on
the housing according to the markings (M).
3. Only slightly tighten the screws (4) crosswise.
4. Check for ease of movement of the pump by turning the
fan wheel.
5. Move the diaphragm over the fan wheel to top dead cen-
ter.
6. Hand-tighten the screws (4) crosswise (tightening torque:
3.5 Nm).
Final steps
1. Mount the cover (1).
2. Connect the pump to the power supply.
If you have questions with regard to maintenance, please
contact our KNF technical adviser (contact data: www.knf.de).
To Next Page
Loading...
