2. Mount the impeller:
a) Fit the conical sleeve onto the shaft.
b) Lubricate the impeller screw threads and contact surface.
Ensure that all parts are clean.
c) For the L- and some C-impellers, fit the washer on the lubricated screw.
d) Press the impeller onto the shaft with the impeller screw.
3. Tighten the impeller screw.
Tightening torque: 34 Nm (25 ft-lb).
Tighten a further 1/8 turn, 45° after tightening to the correct torque.
If applicable, use the rod.
Check that the impeller can rotate freely.
4. Mount the pump housing:
a) Fit the pump housing.
b) Fit and tighten the lubricated screws.
6 Maintenance
48 Flygt 3085 Installation, Operation, and Maintenance Manual
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