3. Storage, Preparation,
Installation
www.nord.com B1000 -17-
Assembly procedure to attach a standard motor to the IEC adapter (Option IEC)/NEMA adapter
1. Clean motor shaft and flange surfaces of motor and adapter and check for damage.
Mounting dimensions and tolerances of the motor must conform to DIN EN 50347/NEMA
MG1 Part 4.
2. Push the coupling sleeve onto the motor shaft so that the motor parallel key engages into
the groove in the sleeve on tightening.
3. Tighten the coupling sleeve on the motor shaft in accordance with the motor manufacturer’s
instructions until it touches the collar. With motor sizes 160, 180 and 225, any spacer
bushes must be positioned between the coupling sleeve and the collar. With standard helical
gear units, dimension B between the coupling sleeve and the collar must be observed.
Certain NEMA adapters require the adjustment of the coupling in accordance with the
specifications indicated on the adhesive plate.
4. Secure the coupling half with the threaded pin. The threaded pin must be coated prior to use
with a securing lubricant e.g. Loctite 242, Loxeal 54-03 and tightened to the correct torque.
(See Chapter 6.2 for torque values)
5. Sealing of the flange surfaces of the motor and the adapter is recommended if the motor is
installed outdoors or in a humid environment. The flange surfaces of motor and adapter
must be completely coated with surface sealant Loctite 574 or Loxeal 58-14 prior to
mounting so that the flange seals after mounting.
6. Mount the motor to the adapter, do not forget to fit the gear rim or the sleeve. (See Figure 3-12)
7. Tighten the adapter bolts to the correct torque. (See Chapter 6.2 for torque values)
Figure 3-12:
Fitting the coupling onto the motor shaft - various types of coupling
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