10. Remove the O-ring.
11. Align the edge of the lower adjustment screw with the edge of the lower conical
sleeve so that they are flush.
12. Assemble the lower conical sleeve and the lower impeller onto the shaft end of the
upper impeller.
13. Mount the suction cover with its O-ring and tighten.
Tightening torque: 76 Nm (57 ft-lb)
14. Turn the lower adjustment screw clockwise until the lower impeller makes contact with
the suction cover. Tighten a further 1/6 turn, 60°.
This will ensure the correct clearance between the lower impeller and the suction
cover in the next step.
6 Maintenance
48 Flygt 2190, 2201 Installation, Operation, and Maintenance Manual
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