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Grundfos NB - Page 17

Grundfos NB
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3. Fit and tighten the motor screws to the correct
torque. See below.
M8: 20 ± 4 Nm
M10: 40 ± 8 Nm
M12: 70 ± 15 Nm
M16: 145 ± 30 Nm
M20: 150 ± 30 Nm
M24: 200 ± 40 Nm
TM033914
4. Remove the nut, washer and transport bracket.
TM033915
5. Press down the threaded pipe to ensure that the
shaft is in bottom position.
TM033916
6. Remove the threaded pipe.
TM033917
7. Apply Loctite 243 to the threads of the set screws.
Tighten the set screws to the correct torque. See
below.
M5: 6 ± 2 Nm
M6: 8 ± 2 Nm
M8: 15 ± 3 Nm
TM033918
17
English (GB)

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