3. MAINTENANCE
IOM manual - Sanitary series
22
Fig. 3.5.9
Remove the domed nuts [37], stud bolts [14] and
washers [38].
Fig. 3.5.10
Take off the second housing [11].
Fig 3.5.11
Unscrew the diaphragm [15].
Fig 3.5.12
Take out the second diaphragm [15] along with the
shaft [16].
Fig 3.5.13
Using circlip 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 3.5.14
Press out the air valve [61] by means of a pressing
device. Be careful not to damage the brass edges of
the air valve.
