Xylem Flygt 3069 - Remove the D-Impeller; Install the D-Impeller

WS009622A
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1. Pump housing
2. Impeller screw
3. Impeller
4. Spacer
5. Sleeve
6. Screws
Figure 10: Abrasive resistant variant
6.6.1 Remove the D-impeller
CAUTION: Cutting Hazard
Worn parts can have sharp edges. Wear protective clothing.
1. Uncover the impeller:
– For the standard variant, remove the screws and the suction cover.
– For the abrasive resistant variant, remove the screws and the pump housing.
2. Remove the impeller screw.
Prevent the impeller from rotating.
3. Remove the impeller:
– For the standard variant, remove the impeller and the sleeve.
– For the abrasive resistant variant, remove the impeller, the spacer, and the sleeve.
6.6.2 Install the D-impeller
1. Prepare the shaft:
a) Polish off any flaws by using a fine emery cloth.
The end of the shaft must be clean and free from burrs.
b) Coat the inner conic and the outer cylindrical surfaces of the sleeve with a thin layer
of grease.
WS008329B
The correct lubrication is grease for bearings, for example Exxon Mobil Unirex N3,
Mobil Mobilith SHC 220 or equivalent.
6 Maintenance
Flygt 3069 Installation, Operation, and Maintenance Manual 45
EN