Fitting Of Pump Head - Grundfos TPE2 D Manual Del Usuario

1. Loosen the clamp securing the pump head to the casing. See
fig. 8.
Fig. 8 Clamp (A)
2. Turn the pump head to the required position.
3. Check the following before you tighten the clamp:
– The contact face of the pumping casing and that of the pump
head must be in full contact.
– The clamp must be positioned correctly in the flange recess
of both the pump head and the pump casing. See fig. 11.
Torque: 5.9 lbf-ft (± 0.75) (8 Nm (± 1).

8.3 Fitting of pump head

DANGER
Electric shock
Death or serious personal injury
- Switch off the power supply to the motor and to the
signal relays. Wait at least 5 minutes before you
make any connections in the terminal box. Make
sure that the power supply cannot be accidentally
switched on.
WARNING
Falling objects
Death or serious personal injury
- If the pump head has been lifted partly or
completely from the pump casing, pay special
attention when fitting the pump head again.
CAUTION
Crushing of feet
Minor or moderate personal injury
- Wear safety shoes.
- Pay special attention that the pump head does not
fall down when loosening the clamp. See fig. 8.
WARNING
Pressurised system
Death or serious personal injury
- Pay special attention to any escaping vapor when
loosening the clamp. See fig. 8.
- Wear personal protection equipment.
12
If for some reasons the pump head has been lifted from the pump
casing, follow the following procedure in order to mount the pump
head correctly:
1. Visually check that the neck ring is centered in the pump
casing. See fig. 9.
A
Fig. 9
2. Gently lower the pump head with rotor shaft and impeller into
the pump casing. See fig. 10.
Fig. 10 Lowering of pump head
3. Check the following before you tighten the clamp:
– The contact face of the pump casing and that of the pump
– The clamp must be positioned correctly in the flange recess
Torque: 5.9 lbf-ft (± 0.75) (8 Nm (± 1).
Fig. 11 Positioning of clamp ring
Centering of neck ring
head must be in full contact.
of both the pump head and the pump casing. See fig. 11.