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 housing,
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 figure Clamp
(A).
WARNING
Pressurised system
Death or serious personal injury
‐ Pay special attention to any escaping
vapour when loosening the clamp. See
figure Clamp (A).
‐ Wear personal protection equipment.
If for some reason the pump head has been lifted
from the pump housing, follow the following
procedure in order to mount the pump head correctly:
1. Visually check that the neck ring is centred in the
pump housing.
TM060722
Centring of neck ring
2. Gently lower the pump head with rotor shaft and
impeller into the pump housing.
TM060723
Lowering of pump head
3. Check the following before you tighten the clamp:
• The contact face of the pump housing 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 housing.
Torque: 8 Nm (± 1 Nm).
15
English (GB)
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