Diaphragm pump N85, N86 Servicing
Translation of original Operating and Installation Instructions, english, KNF 121258-121528 01/20 35
e) Refitting the pump head
1. Turn the fan to bring the diaphragm to top dead centre.
2. Place the intermediate plate (2) with valve plates/sealings (7)
and head plate (3) on the housing, in the position indicated by
the marking (M).
3. Check that the head plate is centred by moving it gently side-
ways.
4. Gently tighten the screws (4), evenly and diagonally.
5. Turn the fan to check that the pump rotates freely.
6. Turn the fan again to bring the diaphragm to top dead centre.
7. Now tighten screws (4) firmly and diagonally.
f.) Final steps
1. In the case of a dc versions (no cooling fan):
Refix the cover (6) to housing (1).
2. Connect the pump to the electrical supply.
If you have any questions about servicing call our technical adviser
(see contact data: www.knf.com).
To Next Page
