3. Remove the impeller.
Use the impeller puller or the crowbars.
Use the impeller screw to push the impeller.
4. Remove the conical sleeve.
6.5.2.2 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 plain washer with a thickness of 2 mm (0.08 in), eight adjustment washers
with a thickness of 0.5 mm (0.02 in), and eight adjustment washers with a thickness
of 0.2 mm (0.008 in) onto the impeller.
6 Maintenance
Flygt 3102 Installation, Operation, and Maintenance Manual 53
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