6. Assemble the impeller with the conical sleeve onto the shaft.
Make sure that the conical sleeve bottoms in the impeller.
7. Mount the suction cover with its O-ring and tighten.
Tightening torque: 76 Nm (57 ft-lb)
8. Turn the adjustment screw clockwise until the impeller makes contact with the suction
cover. Tighten a further 1/8 turn, 45°.
This will ensure the correct clearance between the impeller and the suction cover in
the next step.
Use a 12 mm hexagon bit adapter (Allen socket).
6 Maintenance
Flygt 2190, 2201 Installation, Operation, and Maintenance Manual 43
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