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Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully
the validity of this document with respect to his product. 11/08/2015 // 999281
➨
Lift diaphragm carefully sidewise.
+
Never use a pointed or sharp-edged tool to lift the dia-
phragm.
➨
Use the diaphragm key to grip the diaphragm support disc
below the diaphragm.
➨
Press down the diaphragm clamping disc to bring the
diaphragm to its lowest oscillating position. Unscrew di-
aphragm support disc with diaphragm and diaphragm
clamping disc.
+
If the diaphragm is difficult to separate from the diaphragm
support disc, immerse assembly in naphtha or petroleum
ether. Do not inhale vapors!
➨
Note position of valves.
➨
Unscrew four screws at the pump head, paying attention
to washers.
Remove housing cover.
➨
Unscrew union nut and remove hose from elbow fitting.
➨
Remove housing cover insert with elbow fitting.
➨
Remove head cover and valves.
+
Never remove parts by using a pointed or sharp-edged
tool (e.g., screw driver), we recommend to use a rubber
mallet or compressed air (to be blown carefully into port).