3. MAINTENANCE
IOM manual - Sanitary series
23
The pump is now completely disassembled. Check all components for wear or damage and replace if
necessary.
When air valve is removed from the centre body check the external O-rings ( pos. 30) condition and replace
if necessary.
3.6.
T30
–
Assembly of the pump
The assembly procedure is done in the reverse order to the disassembly.
Nevertheless there are a few things that you have to remember in order to assemble the pump correctly.
Fig. 3.6.1
When putting the air valve [61] into the centre block
[12], apply some water or alcohol on the
O-rings to provide smooth insert of the air valve. It is
recommended to use a pressing device for this
operation.
NOTE!
When inserting the T30 size air valve, replace
the shaft with a screw and a nut to make sure the air
valve assembly remains properly fastened.
Fig. 3.6.2
When screwing in the diaphragms [15] on the shaft
[16], the holes in the diaphragms must align with the
holes in the centre block [12]. Sometimes it is
necessary to turn the diaphragm back a little bit in
order to align the holes.
Fig. 3.6.4
During assembly of the housings [11] make sure they
are in the correct position
–
the inlet pipe has a valve
ball stopper.
