Siemens 1NB1402-2AA84-4CA0-Z, Operating And Installation Instructions

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Shaft extensions with feather key
To maintain the balancing quality, you have the following options:
● If the output element is shorter than the feather key with balancing type "H", then you must
machine off the section of feather key protruding from the shaft contour and output element.
Alternatively, ensure that the weights are compensated to achieve the appropriate balance
quality.
● If the transmission element is drawn up on to the shoulder of the shaft, you must ensure
that the part of the coupling groove where the feather key is not inserted is taken into
consideration when balancing the coupling.
The following applies for all 2-pole machines and 4-pole machines with a frequency ≥ 60 Hz:
● The feather key must be shortened if the coupling hub is shorter than the feather key.
● The center of gravity of the coupling half should be within the length of the shaft end.
● The coupling used must be prepared for system balancing.
The number of poles of the machine is specified on the rating plate (in the designation of
the motor type).
WARNING
The feather key can fall out
The feather keys are only locked against falling out during shipping. If a machine with two
shaft extensions does not have an output element on one shaft extension, the feather key
can fall out during operation.
Death or serious injury can result.
● If the machine is to be operated without output elements, secure the feather key on the
free shaft extension so that it cannot be flung out.
● To avoid imbalance, for balancing type "H", reduce the weight of the feather key to 60 %
of the original weight.
5.2.5 Lifting the machine
● Persons driving cranes and fork-lift trucks must hold appropriate licenses.
● If the motor is packed, depending on the weight, size and on-site conditions, lift crates and
transport frames using a fork-lift truck or a crane with slings. Use a crane or fork-lift truck
suitable for the load.
● When lifting the machine, use only approved and undamaged sling guides and spreaders
of sufficient rated capacity. Check this equipment before using it. The weight of the machine
is shown on the rating plate.
● If adapter flange and adapter plates are also supplied, then lift them and transport these
parts separately. The load suspension equipment for the motor is not rated for lifting the
motor with mounted adapter flange is or adapter plates
Assembly
5.2 Lift the machine to where it will be installed, and position it
SIMOTICS HV C 1NB1402-2AA84-4CA0-Z
48
Operating Instructions 06/2018