3. Remove the impeller.
Use the impeller puller or the crowbars.
4. Remove the conical sleeve.
6.4.2.2 Install the F-impeller
1. Prepare the shaft:
a) Polish off any flaws with a fine emery cloth.
The end of the shaft must be clean and free from burrs.
b) Coat the inner conic, the outer cylindrical surfaces, and the thread of the conical
sleeve with a thin layer of grease.
The proper lubrication is grease for bearings, for example Exxon Mobil Unirex N3,
Mobil Mobilith SHC 220 or equivalent.
NOTICE:
Surplus grease can cause the impeller to become loose. Remove surplus grease
from conical and/or cylindrical surfaces of shafts and/or sleeves.
2. Mount the impeller:
a) Fit the conical sleeve onto the shaft.
b) Fit one adjustment washer with a thickness of 0.25 mm (0.01 in) and two adjustment
washers with a thickness of 1 mm (0.04 in) onto the impeller.
6 Maintenance
50 Flygt 3085 Installation, Operation, and Maintenance Manual
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