English (GB)
7
6.3 Fitting of pump head
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. See fig. 9.
Fig. 9 Centring of neck ring
2. Gently lower the pump head with rotor shaft and impeller into
the pump housing. See fig. 10.
Fig. 10 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. See fig. 11.
Torque: 8 Nm (± 1 Nm).
Fig. 11 Positioning of clamp ring
6.4 Base plate
Twin-head pumps have tapped holes in the bottom of the pump
housing. You can use the holes for mounting a base plate.
6.5 Insulation
Follow the guidelines in fig. 12 when insulating the pump.
Fig. 12 Insulation of TPE2, TPE3 pumps
6.6 Frost protection
Drain pumps which are not being used during periods of frost to
avoid damage.
Warning
Before starting work on the pump, make sure that the
power supply has been switched off for at least 5
minutes. Make sure that the power supply cannot be
accidentally switched on.
Warning
If the pump head has been lifted partly or completely
from the pump housing, pay special attention when
fitting the pump head again. See instructions below.
Warning
Do not drop the pump head. See fig. 8.
Warning
When loosening the clamp, there is a risk of
escaping vapour. See fig. 8.
TM06 0722 0814TM06 0723 0814
TM06 0724 0814
Do not insulate the motor stool as this will trap any
vapour escaping from the shaft seal, thus causing
corrosion. Covering the motor stool with insulation
will also make inspection and service difficult.
TM05 7918 1613
Pos. Description
A Without insulation
B Correct insulation
C Incorrect insulation
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