Diaphragm Pump N 035 E
Servicing
KNF N 035 E e 08/09 Translation of the original Operating and installation instructions
23
WARNING
Health hazard due to dangerous substances
in the pump!
Depending on the substance transferred, caustic
burns or poisoning are possible.
Wear protective clothing if necessary, e.g.
protective gloves.
Flush pump before replacing the diaphragm and
reed valves (see section 8.2.1).
*
Fig. 19: Pump parts for versions with aluminium head
*not for .9 versions
1. For two-headed pumps:
At one pump head open the union nut of pneumatic head con-
nection and pull off the tube.
2. Mark the position of the diaphragm head C in relation of the
housing A with a pencil.
3. Loosen the four allen screws B and remove the diaphragm
head C.
4. For all pumps except .9 versions: Unscrew the countersunk
screw D, remove the retainer plate E and the diaphragm F.
5. For pumps N 035_ _.9 E: To undo the retainer plate E use the
wrench for retainer plate to turn it anti-clockwise; remove re-
tainer plate and diaphragm F.
