6.3 Mounting of Pump Head
6.3.1 Preparation
After removal of the pump head from its packaging
assure that no metallic part is magnetically
attaching. Specifically remove the Fixation Disc,
which comes delivered within the packaging in
order to magnetically fix the impeller against
movements during transportation.
Figure 34: Pump head with Fixation Disc
Assure that the impeller speed is set to 0 rpm and
that the system is disabled.
6.3.2 Step 1: Insertion
Pull the Locking Pin radially outwards and insert
the pump head at the same time.
Figure 35: Intuitive 3-step pump head mounting
procedure with bayonet type socket
6.3.3 Step 2: Rotation and Snap-In
Smoothly rotate the pump head clockwise until the
Locking Pin snaps in.
6.3.4 Step 3: Ready-to-Use Check
Check that the Locking Pin is properly snapped in
and that the green labeling on the Pump Head
Socket, beside the outlet, is visible.
6.4 Removal of Pump Head
6.4.1 Preparation
Set the speed to 0 rpm and disable the system.
After running at higher motor or liquid temperature
the pump head might stick to the motor due to
thermal expansion effects. Let the system cool
down before starting the removal procedure.
6.4.2 Step 1: Pull Pin and Rotate
Pull the Locking Pin radially outwards and rotate
the pump head smoothly counterclockwise as far
as possible.
6.4.3 Step 2: Axial Removal
Smoothly remove the pump head axially.
6.4.4 Step 3: Usage of Fixation Disc
It is recommended to attach the Fixation Disc (see
Figure 34) to the pump head bottom in order to
minimize magnetic leakage fields surrounding the
impeller and hence reducing the tendency to
attract other magnetic parts.
6.5 Assembly into Hydraulic Circuit
The following points shall be considered, when
integrating the pump head into a single-use circuit.
6.5.1 Usage of Fixation Disc
During handling, assembling and transportation of
the pump head with the hydraulic circuit, it is
recommended to attach the Fixation Disc (see
Figure 34) to the pump head bottom. The disc
holds the impeller mechanically in place and
reduces the magnetic fields, which can attract
other magnetic parts during handling, sterilization
and transportation.
6.5.2 Handling of Multiple Pump Heads
Be aware of the magnetic forces of the impellers
when handling multiple pump heads at the same
time. Avoid two pump heads coming together with
force due to the magnetic attraction, which might
cause cracks.
6.5.3 Avoidance of Mechanical Stress
Avoid applying too much mechanical stress to
the pump head for example, by excessively
squeezing it with the other parts of the circuit to a
packaging or an enclosed space of limited size,
or by applying too much tension or perpendicular
force to the fittings.
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