Control Unit; Pump Dissassembly - Kessel Aqualift F Installation And Operating Manual

7.1.3 Bearings
The bearings are permanently lubricated and are mainten-
ance free. However, if operation of the motor becomes lou-
der and louder, the bearings should be inspected. Problems
can be confirmed if the rotor is difficult to turn by hand or
when turning the rotor / impeller by hand it is noticed that
the rotation axis is not exact (rotor is not firmly in place). If
this is the case the entire pump must be refurbished.

7.2 Control unit

• The batteries in the control unit should be inspected at least
once per year and replaced if necessary. Replacement bat-
teries should be identical to the originals. Dispose of old
batteries properly.
• The motor protection switch is considered a wear and tear
part and should be checked every year and replaced if ne-
cessary. Please replace with the identical switch (see
Chapter 9) and dispose of the old switch properly.
7. Inspection and maintenance
7.1.4 Impeller
In cases where the performance of the pump decreases, the
condition of the impeller should be checked for wear and
tear. Before placing the Aqualift F Pumpstation in service or
if the Aqualift has not been in service for an extended peri-
od of time, the impeller should be turned by hand to make
sure it rotates smoothly.
162 Suction cover
210 Pump shaft
237 Impeller body
230 Impeller
321-01 Upper bearing
321-02 Lower bearing
355 Bearing holder
410 Profile seal
412-01 O-ring
412-02 O-ring
412-03 O-ring
412-04 O-ring
433-01 Rotating mechanical seal
433-02 Rotating mechanical seal
476 ge Ring bearing
500 Ring
561 Grooved dowel pin
561-02 Grooved drive stud
81-59 Stator
818 Rotor
821 Rotor package
834 Cable inlet
81-96 Cable connection
903 Threaded pin
914-01 Hexagonal threaded screw
914-02 Hexagonal threaded screw
914-03 Hexagonal threaded screw
914-04 Hexagonal threaded screw
914-06 Hexagonal threaded screw
932-01 Securing ring
932-03 Securing ring
932-05 Securing ring
970 ID Plate
• Please make sure the see-thru cover of the control unit is
properly closed and tightened.
• Repairs of the control unit should be undertaken by the ma-
nufacturer only.
7.3 Pump Disassembly
Disassembly of an Aqualift pump may be undertaken only by
a qualified licensed KESSEL customer service partner.
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