nord 6052902/0213, Manual With Installation Instructions

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Industrial gear units – Manual with installation instructions
52 B 1050 en-3921
Figure 24: Fitting the coupling to the motor shaft
4. Coat the setscrew with securing adhesive (e.g. Loctite 242 or Loxeal 54-03) and secure the half-
coupling with the setscrew. Tighten the setscrew with the correct tightening torque (see chapter 7.4
"Screw tightening torques").
5. The flange surfaces of the motor and the adapter should be sealed if the motor is installed outdoors
or in a humid environment. Completely coat the flange surfaces prior to the motor mounting with
surface sealant (e.g. Loctite 574 or Loxeal 58-14).
6. Mount the motor together with the enclosed ring gear onto the adapter. Tighten the adapter bolts
with the correct tightening torque (see chapter 7.4 "Screw tightening torques").
3.16 Installing the drive coupling
Check the alignment of the coupling prior to commissioning.
Always verify the coupling specifications if the operating conditions (power, speed, changes to the
drive or the driven machine) change.
3.16.1 Dog coupling
Normally, the gear unit is connected to the motor with a dog coupling. For gear units without an
IEC/NEMA adapter, the alignment between the gear unit and the motor must be ensured by the
operator and the coupling installed according to the manufacturer's instructions.
For gear units with IEC/NEMA adapters, see section 3.15 "Fitting a standard motor (Option: IEC,
NEMA)".
3.16.2 Turbo coupling
WARNING
Risk of oil being expelled in case of an overload
The oil being expelled from the coupling is hot. Danger of burns.
• The coupling must be encased as a protection against oil being expelled.
As standard, turbo couplings are usually supplied filled with oil.
Turbo couplings are usually supplied with a fusible plug. In case of overload the oil temperature in the
coupling increases. As soon as the temperature limit (usually 140 °C) is reached, the fusible plug
melts and the oil flows out of the coupling in order to separate the motor and the gear unit before both
components are damaged. An oil tray for the escaping oil should be provided.