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I
E
M
L
J
A
C
B
F
G
H
K
D
View of the disassembled pump head parts
A: Housing cover with insert
B: Valves
C: Head cover
D: Diaphragm clamping disc
with square head screw
E: Diaphragm
F: Diaphragm support disc
G: Washer(s)
H: Connecting rod
I: Housing
J: Housing bearing flange
K: Union nut
L: Fitting
M: Hose connection
Pump head parts: