Xylem Flygt 2620.172 Service And Repair Instructions page 49

7. Install the handle. Tighten the screws.
8. Install a new O-ring on the edge of the pump top.
Lubricate the O-ring.
9. Install the outer casing.
Use a rubber mallet on the edge of the outer casing.
2620.172/.281 Service and Repair Instructions
Install the cable so that a few centimeters of the outer sheathing is inside the cable
entrance.
4 Maintenance
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