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Installation and operating instructions Wilo-DrainLift XS-F 33
• Remove any foreign matter from the tank or the pump through the suction opening and, if
necessary, clean the parts and the opening to the blockage pressure switch.
• Carefully reassemble the unit in the reverse order.
CAUTION! Risk of damage!
Incorrect reassembly can cause damage to the product.
• Before reassembly, generously grease the O-ring and the seat on the tank, for example
using petroleum jelly.
• Make sure the O-ring is correctly seated on the pump unit during reassembly.
• Push the pump unit by hand into the seal seat and hand-tighten the screws crosswise. First
turn them slightly anticlockwise to find the thread.
9.2 Installing / changing the active carbon filter
The active carbon filter (supplied) must be installed when ventilation through the roof is
not possible. The filter should be changed at least once a year, as well as after malfunctions
where water escapes, or when smells accumulate.
• To install or change the filter, take the ventilation grille off the ventilation housing.
• Take out the old filter and insert the new filter (after removing the foil) into the ventilation
insert as far as it will go, to the same position as the old filter (Fig. 8).
• The push the ventilation grille back on.
Fig. 24: Removing the pump unit
1 Remove the screw from the cover.
2 Push the cover slightly towards the pressure pipe
until it snaps out.
3 Lift off the cover.
4 Release the clips of the discharge elbow on the
pressure pipe and pull off the discharge elbow.
5 Undo the four screws on the corners of the pump
unit and lift it out of the tank.
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