Servicing Diaphragm Pumps N 143/186.12
22 Translation of original Operating and Installation Instructions, english, KNF 121610-121613 07/16
A Housing
B Intermediate ring
C Intermediate plate
D Head plate
E Hexagon socket head cap
screw
F O-ring
G Valve plate
H O-ring
I Retainer plate
K Hexagon socket head cap
screw
L Working diaphragm
M Hexagon socket head cap
screw
N Diaphragm support
P O-ring
R O-ring
S Safety diaphragm
T O-ring
Z Dowel pin/Roll pin
Fig. 9: Pump parts
The following item numbers refer to Fig. 9, unless otherwise
indicated.
Disassembling
1. Take the steps necessary to gain access to the motor cooling
fan:
Undo the screws that hold the fan cover. For one-headed
pumps: Fig. 1/7, p. 11; for two-headed pumps: Fig. 2/7, p. 11
or Fig. 3/7, p. 12 and remove the fan cover.
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