Kessel Aqualift F XXL 400 litres 50 Hz Series, Instructions For Installation, Operation And Maintenance

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Repair work
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• Fix the impeller in place using suitable aids, loosen the impeller attachment (cylinder head screw with hexagon
socket) and screw this out.
Watch out for the screw locking device.
• Pull the impeller off the shaft using a suitable removal tool.
• Clean the shaft.
• Push the new impeller onto the shaft.
Make sure that the mating surfaces do not become damaged.
• Screw a new impeller attachment (cylinder screw with hexagon socket and a new screw locking device) back
into the shaft. Fix the impeller in place and tighten the cylinder head screw. Insert the pump part onto the sealing
housing and attach using hexagon nuts. The impeller must be able to be turned by hand.
Split ring replacement
The split ring and raceway determine the gap between the impeller (raceway) and the suction muff (split ring).
If this gap becomes too big, the machine‘s pumping capacity drops and/or blockages occur. Both rings have
been designed in such a way that they can be replaced. This reduces wear on the suction muff and impeller and
minimises spare parts costs.
Replacement of the floating-ring type shaft seal
Replacement of the floating-ring type shaft seal requires basic knowledge and specific special knowledge of these
sensitive components. In addition, the machines have to be dismantled to a major extent for this work to be carried
out. Only use genuine spare parts for replacement. Checking and replacement of these parts is carried out by the
manufacturer during general overhaul or by specially trained personnel.