FLYGT 3085 - Page 49

WS001988A
Figure 16: C-impeller
WS001982A
Figure 17: D-impeller
3. For the L- and some C-impellers, remove the washer.
4. Remove the impeller.
Use the impeller puller or the crowbars.
WS001978A
5. Remove the conical sleeve.
6.4.1.2 Install the C-, D-, or L-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.
6 Maintenance
Flygt 3085 Installation, Operation, and Maintenance Manual 47