Diaphragm Pumps N 035.18
Servicing
Translation of original Operating Instructions, English, KNF 121228-121398 04/14
17
8.3. Changing Diaphragm and Valves
Pump is switched off and mains plug is removed from the
socket
Pump is clean and free of hazardous materials
Tubes removed from pump’s pneumatic inlet and outlet
Spare part*
Position**
Quantity per
pump head
Diaphragm
(F)
1
Countersunk
screw
(D)
1
Reed valve
(M,P)
2
Gasket
(V)
1
Tab. 11
*According to Spare parts list, chapter 10
**According to Fig. 6.
Quantity Tools/Material
1
Allen key 3 mm
1
Allen key 4 mm
1
Allen key 5 mm
1
Screwdriver blade width 6.5
1
Screwdriver blade width 4.0
1
Fork wrench 16 mm (only for two-headed pumps)
1
Pencil
Tab. 12
With multi-head pumps, parts of the individual pump heads can be
confused.
Replace the diaphragm and reed valves of the individual pump
heads consecutively.
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
redd valves (see section 8.2.1).
Conditions
Spare parts
Tools
Information on procedure
