6
Assembly
1. Remove the label "MODULE" (s), if fitted.
See fig. K.
2. Fit the module (r). The plug must fit easily into the
terminal plug of the stator. See fig. J.
3. Fit and tighten the screw (q). See fig. J.
4. Fit the cable holder (p), if not already fitted.
See fig. J.
5. Connect all wires in the same positions as before
dismantling.
6. Close the control box cover. Fit and tighten the
screws (c). See fig. B.
7. Switch on the electricity supply.
The pump is now ready for operation. See section
6. Start-up.
5. Replacement of pump head
The figures from A to K can be found on the fold-out
page at the end of this booklet.
Dismantling
1. Compare the nameplates of the existing and the
new pump heads, and check that the new pump
head is of the same type as the existing one.
2. Switch off the electricity supply to the pump, and
make sure that it cannot be accidentally switched
on during replacement.
3. Close the isolating valves on either side of the
pump.
4. Remove the three screws (d) securing the control
box to the pump head. See fig. B.
The control box may stick to the pump head.
Therefore, it may be necessary to prise the
control box loose with a small screwdriver.
5. Take care that connected cables are not exposed
to unnecessary stress and torsion.
6. Hold the pump head, and remove the four screws
(k) securing the pump head to the pump housing.
See fig. F.
7. Pull off the pump head.
Assembly
1. Fit the pump head. See fig. G.
First fit the impeller, bearing plate and rotor (l).
Then position the O-ring (m), and fit the stator (n).
2. Fit and tighten the screws (k). See fig. F.
3. The control box must be positioned as shown in
fig. H.
4. Clean the contact face (e) of the pump head with
the cleaning serviettes. See fig. C.
5. Apply an even layer of the paste in the syringe (f)
to the contact face of the pump head. See fig. D.
6. Cover the whole contact face with paste by
moving the spatula (g) once across the contact
face. See fig. E.
7. Fit the control box. The plug must fit easily into
the terminal plug of the stator.
The paste will make the control box stick to the
pump head.
8. Fit and tighten the three screws (d). See fig. B.
The pump is now ready for operation. See section
6. Start-up.
6. Start-up
Do not start the pump until the system has been filled
with liquid and vented. Furthermore, the required
minimum inlet pressure must be available at the
pump inlet.
As the pump is self-venting, it need not be vented
before start-up.
The pump may be noisy, when first switched on, due
to air remaining in the chamber. This noise should
cease after a few minutes running.
After start-up, the desired operating mode and
possibly pump head are set.
Warning
Please note that the pump may be hot
for a while after being switched off and
that hot liquid may escape from the
pump during dismantling.
Note
The system cannot be vented through
the pump.
Warning
If the inspection screw (o) is to be
slackened, see fig. I, care should be
taken to ensure that the escaping,
scalding hot liquid does not cause
personal injury or damage to
components.
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