Diaphragm liquid pump NF 30, NFB 30
Servicing
KNF Flodos AG BA_NF30_EN_05_069206.docx
Translated from the Original Operating and Installation Instructions
23
NF 30 and NF 30 KP.51 version
1. The visible lines on the intermediate plate (
5
) and the
connecting plate (
3
) must be in line with each other.
2. The head plate (
2
) must be positioned so that the flow direction
arrows coincide with the connections on the connecting plate
(
3
).
3. Insert the four head screws (
1
) in the through holes of the
pump head.
4. Place the pump head onto the pump housing and alternately
tighten the four head screws (
1
).
NF 30.27 version
1. Place the diaphragm.27 (
15
) in the centre of the connecting
plate (
3
).
2. Then place the sliding disk.27 (
14
), support.27 (
13
), and
washer.27 (
12
) on the diaphragm.27 (
15
).
3. Place the compression spring.27 (
11
) over the thread of the
diaphragm.27 (
15
). Then add the washer.27 (
12
).
4. Carefully place the head plate.27 (
10
) with the setscrew.27 (
8
)
and the hexagon nut.27 (
9
) over the whole unit.
5. The visible lines on the intermediate plate (
5
) and the
connecting plate (
3
) must be in line with each other.
6. You can choose any position (direction of rotation) for the head
plate.27 (
10
).
7. Insert the four head screws (
1
) in the through holes of the
pump head.
8. Place the pump head onto the pump housing and alternately
tighten the four head screws (
1
).
➔
While the above actions should not alter the set pressure of the
overflow valve, if you find the setting has changed after
assembly, you can modify the value in the permissible range of
the pump according to the instructions of Section 8.4 and, if
necessary, reset the peripheral installations.
8.3. Replacing parts
Same procedure as in Section 8.2, "Cleaning"
– with the exception
of step 6:
Instead of cleaning the diaphragm (6), diaphragm.27 (
15
), sliding
disk.27 (
14
), support.27 (
13
), washer.27 (
12
), compression
spring.27 (
11
), valve plate (
4
), intermediate plate (
5
) and
connecting plate (
3
), these components must be replaced.
