KNF N952KTE-W Manual De Instrucciones página 108

Servicing
48
Fig.13: Diaphragm replacement
2. Screw the new diaphragms (1/Fig. 13) into the thread of
the connection rod by hand and tighten them hand-tight.
If the diaphragm is overtightened, there is risk of the
PTFE coating detaching.
Before the final tightening of the diaphragms, it is recom-
mended that you move the diaphragm to top dead cen-
ter.
3. Move the diaphragms (1/Fig. 13) to top dead center.
4. Place heads 1 and 2 on the compressor housing and
cross-tighten the fastening screws (7/Fig. 9) hand-tight
(tightening torque: 3.5 Nm).
5. Perform steps 6-8 (removing the pump head), as well as
steps 1-6 (replacing the valve plates and fitting the inter-
mediate plates) and steps 1-4 (replacing the diaphragms
and fitting the pump head) for heads 3 and 4 (III and IIII/
Fig. 8).
Fitting the connection
1. Push the connection tubing (2/Fig. 7) into the fitting as far
as it will go.
Translation of Original Operating and Installation Instruction, KNF
Diaphragm pump N952KTE-W N952KT.29E-W
339866-336533 02/23