Mounting Of Motor On Bare Shaft Pumps; Mounting Of Motor On Pump Housing Without Feet - Grundfos NB Series Installation And Operating Instructions Manual

7. Mounting of motor on bare shaft
pumps
7.1 Mounting of motor on pump housing
without feet
The pumps are supplied with a transport bracket
protecting the shaft seal during transport. When you
mount the motor, follow the instructions shown in
these drawings.
1. Remove the coupling guard and loosen the
set screws in the shaft.
3. Fit and tighten the motor screws to the
correct torque. See below.
M8: 12 ± 2.4 Nm
M10: 25 ± 5 Nm
M12: 40 ± 8 Nm
M16: 100 ± 20 Nm
M20: 150 ± 30 Nm
M24: 200 ± 40 Nm
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2. Place the pump on the motor.
4. Remove the nut, washer and transport
bracket.