D39489-BA-PM-EN.pdf - 第34页
34 D39489 | Date 12/2019 Diaphragm pump PJ25481 - 950.50.1 8 Servicing Translation of origina l Installat ion Instructions , english , KNF 125530 - 31 6634 06/18 23 Fig. 5 : Disassembli ng the head conne ctions 4. Remove…
33
D39489 | Date 12/2019
Servicing Diaphragm pump PJ25481-950.50.18
22 Translation of original Installation Instructions, english, KNF 125530-316634 06/18
Fig. 4: Exploded drawing PJ25481-950.50.18
1 8x attachment screws
(head cover)
2
4x head screws
3
16x attachment screws
(head)
4
4x head plates
5
8x O-rings (ø24 x 2)
6
4x intermediate plates
7
4x diaphragms
8
1x connection cover
9
4x attachment screws
(connection cover)
10
2x attachment screws
(connection .50)
11 2x connection blocks .50
12
2x O-rings (ø7,65 x1,78)
13
2x flat seals
14
2x connection blocks .1.2
15
2x attachment screws
(connection .1.2)
16
8x valve plates
17
6x valve plates
18
6x O-rings (ø18,77 x
1,78)
19
6x O-rings (ø10 x 2,5)
20
2x head covers
Removing the pump head
1. Undo the eight screws (Fig. 4/1) and remove the head covers
(20).
2. Undo the connection cover’s (8) attachment screws (Fig. 5/9)
and remove the connection cover.
3. Remove the head connection’s (11) and (14) screws (10) and
(15) and remove the head connections.
34
D39489 | Date 12/2019
Diaphragm pump PJ25481-950.50.18 Servicing
Translation of original Installation Instructions, english, KNF 125530-316634 06/18 23
Fig. 5: Disassembling the head connections
4. Remove O-rings (Fig. 6/12) and flat seals (13).
Fig. 6: Marking the pump
5. Head 1 (Fig. 6/I):
Use a felt-tip pen to apply a single mark (M) to the head plate,
intermediate plate, and compressor housing.
6. Head 2 (Fig. 6/II):
Use a felt-tip pen to apply two marks (M) to the head plate, in-
termediate plate, and compressor housing.
7. Head 3 (Fig. 6/III):
Use a felt-tip pen to apply three marks (M) to the head plate,
intermediate plate, and compressor housing.
35
D39489 | Date 12/2019
Servicing Diaphragm pump PJ25481-950.50.18
24 Translation of original Installation Instructions, english, KNF 125530-316634 06/18
8. Head 4 (Fig. 6/IIII):
Use a felt-tip pen to apply four marks (M) to the head plate, in-
termediate plate, and compressor housing.
During re-assembly, refer to the marks on the individual heads
to ensure th
at the parts are properly re-assembled.
9. Undo the 16 attachment screws (Fig. 4/3) on the heads (1 to 4)
and remove the heads (1 and 2 as well as 3 and 4).
10. Pull apart heads 1 (Fig. 7/I) and 2 (II) and heads 3 (III) and 4
(IIII) and remove O-rings (19).
Fig. 7: Removing the o-rings
11. On all four heads, undo the head screw (Fig. 8/2) in the head
plate (4) and remove head plate from the intermediate plate
(6).