Xylem FLYGT 2640.181, Service And Repair Instructions, Page: 28 / 72

WS001392A
3. 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 an 8 mm hexagon bit adapter (Allen socket) with a 100 mm (4 in.) extension.
WS001394A
c) Pull off the impeller.
4.5.5 Remove the mechanical seal: Drainage versions
1 2 3 4 5 6 7
WS008504A
1. Seal
2. Pressure equalizers
3. O-ring
4. O-ring
5. Seal housing cover
6. O-ring
7. Diffuser
4 Maintenance
26 2640.181/.281 Service and Repair Instructions