Kessel Aqualift F Guide D'installation Et De Maintenance page 64

The system must be checked once every month by the ope-
rator through observation of the switching routine for opera-
tional ability and leaks.
CAUTION:
Disconnect the unit from the mains during all mainte-
nance work! Heed safety instructions!
All the servicing and maintenance work described
below may only be carried out by authorised qualified
personnel.
Repairs may only be carried out by the manufacturer
or his authorised service partner.
DIN 1986, part 3, must be heeded during maintenance work
on lifting stations. Maintenance work must be carried out re-
gularly by authorised qualified staff.
All screws may only be tightened with a maximum torque
IMPORTANT:
of 3 Nm.
The following tasks have to be carried out:
• Visual inspection of the complete system, pumps and fitting
parts
• Thorough cleaning of the complete system and the pump
• Check on the complete system and pump housing for ex-
ternal damage and visible wear
• Check on the pump for free movement, wear and deposits
• Check the connection cables for mechanical damage and
wear
• Check the seal connections for air-tightness and replace
the seal (e.g. O-ring) if there any indications of wear
• Insulation test on the pump motor
• Check non-return valve for function if appropriate
• The backwater flap must be replaced after 2 years of ope-
ration.
7.1 Notes on the pump
The pump should be checked at regular intervals. If opera-
tional noises increase, pumping capacity decreases or there
are vibrations in the pipeline system, the pump housing and
impeller must be checked for any stubborn soiling or wear.
To do this, the motor unit must be loosened at the four attach-
ment screws (refer also to section 10.2.1 or 10.2.2) and re-
moved from the pump housing.
When checking the pump housing, care must be taken that
the ventilation bore hole is kept open under all operating con-
ditions.
All manuals and user guides at all-guides.com
7. Inspection and maintenance
7.2 Notes on the aerating device
The aerating device can be used to completely empty the
pressure pipe through manual lifting of the backwater flap on
the lifting system. To do this, an Allen key size 8 or open-
ended spanner size 15 must be used to hold the flap opener
turned (see Fig. 2) as long as necessary until the pressure
pipe is empty. Then the flap opener must always be returned
to its initial position or the marked operating position (see
Fig. 3).
Fig. 2
Fig. 3
The complete flap housing can be removed for cleaning
Note:
and maintenance purposes (see Fig. 4+5) by loosening
the screw connections on the lower and upper flange of
the flap housing. The pressure pipe must have been
blocked off and emptied first, of course.
64