WS001348A
c) Pull off the impeller.
6. Remove the lower diffuser.
WS001345B
7. Remove the inner diffuser.
8. Remove the upper diffuser.
9. Remove the impeller:
a) Lock the impeller to prevent rotation.
Use pliers, a screwdriver, or similar.
b) Turn the adjustment screw counterclockwise until the impeller breaks free from
the shaft.
Use a 12 mm hexagon bit adapter (Allen socket) with a 100 mm (4 in) extension.
6 Maintenance
38
Flygt 2190, 2201 Installation, Operation, and Maintenance Manual
