Take out the second diaphragm [15] along with the shaft
[16].
a) Circlip mounted air valve – T/TX80, T125
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
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 – TX125 from s/n 0907-…, T/TX225, T/TX425
Unscrew plate screws [2711] from both sides of the
centre body [12] and take out the left and right plate
[271].
Press out the air valve [61] by means of a pressing
device. Be careful not to damage the brass edges of the
air valve.