6.4.7 Install the impeller, alternative 3
Table 9: Applicability
Product code Pressure class Open or closed impeller
2201.012 SH Closed
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. Align the edge of the upper adjustment screw with the edge of the upper conical
sleeve so that they are flush.
6 Maintenance
Flygt 2190, 2201 Installation, Operation, and Maintenance Manual 45
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