3. 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.
The correct 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.
4. Install the impeller sleeve and the impeller onto the shaft.
5. Fit the suction cover and tighten the screws.
Point the guide pin towards the outlet.
For tightening torque, see
Torque values
on page 39.
6 Maintenance
54 Flygt 3069 Installation, Operation, and Maintenance Manual
EN
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