Fitting The Electric Motor - BONFIGLIOLI TECNOINGRANAGGI LC Series Installation, Use And Servicing Manual

5.2 FITTING THE ELECTRIC MOTOR

1. Align the key seat of motor shaft with the slit of the input coupling.
2. Match motor and gearbox until the respective flanges mate perfectly one against the other. Do
not thrust excessively.
WARNING
Excessive forces applied on the motor may result into damages on the gear unit or the
motor itself.
3. Apply a small quantity of adhesive product, type Loctive 243 or similar, to the thread of each
bolt and tighten all of them to the torque specified in the chart here under:
4. Set a wrench to the torque value specified in the chart here under and tighten firmly the bolt
locking the input coupling:
18
Tightening torque [Nm]
Bolt class
Bolt size
8.8
M4 2.9
M5 5.75
M6 9.9
M8 24
10.9 12.9
4.1 4.95
8.1 9.7
14 16.5
34 40