3. MAINTENANCE
IOM manual Tapflo TF series
20
Fig. 3.5.17 TXF100, TF/TXF200, TF/TXF400
Press out the air valve [61] by means of a pressing
device. Be careful not to damage the brass edges of
the air valve.
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 (6 x pos. 30)
condition and replace if necessary.
3.6.
TF50-TF400 – assembly of the pump (PE & PTFE)
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 insertion of the air valve.
It is recommended to use a pressing device for this
operation.
Fig. 3.6.2
When there is need to replace the diaphragm pin
screw [1652], while screwing it into the diaphragm [15]
make sure the pin screw goes all the way.
Fig. 3.6.3
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.
