3. MAINTENANCE
IOM manual Tapflo Metal Series 24
Fig. 3.7.5
Unscrew the diaphragm [15] from one side of the pump.
Fig. 3.7.6
Take out the second diaphragm [15] along with the shaft
[16].
a) Circlip mounted air valve – T/TX70, T120, T820
Fig. 3.7.7
Using pliers remove both circlips [27] from the centre
block [12].
ATTENTION! While doing this, cover yourself with your
other hand, as the circlip easily flips away
Fig. 3.7.8
Press out the air valve [61] by means of a pressing
device. Be careful not to damage the brass edges of the
air valve.
b) Plate mounted air valve – TX120, T/TX220, T/TX420
Fig. 3.7.9
Unscrew plate screws [2711] from both sides of the
centre body [12] and take out the left and right plate
[271].
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