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

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Repair work
V 1.0
The following is generally valid for changing operating fluids:
Switch the machine off, allow it to cool, disconnect from the mains power supply (have a specialist do this work),
clean and set down vertically on a firm base. Warm or hot operating fluids can be under pressure. Escaping
operating fluids can lead to burns. For this reason, always allow the machine to cool to ambient temperature first.
Secure it from falling over and/or slipping.
7 Repair work
7.1 General points
The following repair work is possible on this machine:
• Replacement of impeller and pump chamber
• Replacement of split ring
The following must always be heeded for this work:
• O-rings and existing sealing gaskets must always be replaced.
• Screw locking devices such as spring washers must always be replaced.
• The tightening torques must be kept.
The following is generally valid for repair work:
Switch the machine off, disconnect from the mains power supply, clean it and set it down horizontally on a firm
base. Secure it from falling over and/or slipping.
Unless otherwise specified, the torque values in the tables must be used. Values for clean, lubricated screws.
Tightening torque [Nm] for screws A2/A4 (friction coefficient = 0.2)
A2/A4, material
class 70
A2/A4,
material
class 80
DIN 912/DIN 933 DIN 912/DIN 933
M6 7 Nm 11.8 Nm
M8 17 Nm 28.7 Nm
M10 33 Nm 58 Nm
M12 57 Nm 100 Nm
M16 140 Nm 245 Nm
M20 273 Nm 494 Nm
7.2 Replacement of various pump parts
Replacing impeller and pump housing
• Loosen the cylinder head screw with hexagon socket on the sealing housing and screw it off.
• Secure the pump housing using suitable aids e.g. lifting devices, and pull it off the sealing housing. Set down
on a safe base.