Make sure that the corrosion inhibitor used does not
affect the rubber parts with which it comes into
contact.
Commercially available preservatives can be used for
this purpose. Please observe the manufacturer’s
instructions for application or removal.
To prevent water, dust, etc. from entering the pump,
keep all openings covered until the pipes are to be
fitted. The cost of having to dismantle the pump
during startup to remove foreign objects can be very
high.
7. Servicing the product
7.1 Contaminated products
CAUTION
Biological hazard
Minor or moderate personal injury
‐ Flush the pump thoroughly with clean
water and rinse the pump parts in
water after dismantling.
The product will be classified as contaminated if it has
been used for a liquid which is toxic or injurious to
health.
If you request Grundfos to service the product,
contact Grundfos with details about the liquid before
returning the product for service. Otherwise, Grundfos
can refuse to accept the product for service.
The product must be cleaned thoroughly before you
return it.
Costs of returning the product are to be paid by the
customer.
7.2
Adjusting the shaft
If the motor has been removed during installation or
for repair of the pump, the pump shaft must be
adjusted after the motor has been replaced.
7.2.1
Adjusting the shaft for pumps with two-part
coupling, TP Series 100 and 200
Make sure that the shaft pin is fitted in the pump
shaft.
Adjust the pump shaft as follows:
1. Remove the coupling guards using a screwdriver.
2. Fit the hexagon socket head screws in the
coupling and leave loose.
3. Raise the coupling and the pump shaft as far as
possible (towards the motor) with a screwdriver or
a similar tool so that the pump and motor shafts
touch each other.
TM006415
Raising the coupling and the pump shaft
4. Tighten the hexagon socket head screws in the
coupling to 5 Nm (0.5 kpm).
5. Check that the gaps either side of the coupling
halves are equal.
6. Tighten the screws two and two (one side at a
time) to the torque stated below.
Hexagon socket head screw Torque
M6 x 20 13 Nm (1.3 kpm)
M8 x 25 31 Nm (3.1 kpm)
7. Fit the coupling guards.
TM006416
Tightening the screws
7.2.2 Pumps with integral shaft and coupling
For pumps with integral shaft and coupling, we
recommend that you do not remove the motor. If the
motor has been removed, it is necessary to remove
the motor stool in order to refit the motor correctly.
Otherwise, the shaft seal may be damaged.
20
English (GB)
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