NORD Drivesystems B2000 - Manual (Page 15)

3. Storage, preparation,
installation
www.nord.com B2000-GB-0413 -15-
labelling applies for the geared motor unit. If the electric motor is driven with a frequency
inverter, the motor requires ATEX approval for inverter operation.
3.5 Checking the configuration
3.6 Preparing for installation
The drive unit must be inspected and may only be installed if no transportation damage or leaks
are visible. In particular the radial seals and the sealing caps must be inspected for damage.
All bare metal surfaces and shafts of the gear unit are protected against corrosion with oil,
grease or corrosion protection agents before shipping.
Thoroughly remove all oil, grease or corrosion protection agents and any dirt from the shafts and
flange surfaces before assembly.
In applications where an incorrect rotational direction may result in damage or potential risk, the
correct rotational direction of the drive shaft is to be established by test running the drive when
uncoupled and guaranteeing such for subsequent operation.
Ensure that no aggressive or corrosive substances are present in the area surrounding the
installation site or are subsequently expected during operation, which attack metal, lubricants or
elastomers. In case of doubt, please contact Getriebebau NORD and take the recommended
action.
Danger!
The gear unit may only be operated in the stated configuration. The permissible
configuration is stated on the rating plate (IM ….). If an X is present in the field IM, the
special documentation, whose number is in field S, must be observed. Section 6.1, or
the special documentation, shows the configuration of the individual types of gear
units. It must be checked and ensured that the configuration as stated on the rating
plate complies with the installation orientation and that the installation orientation does
not change during operation.
The UNIVERSAL worm gear units type SK1SI... do not depend on the version, as with
these types of gear unit, the abbreviation UN is entered in the IM field of the type plate.
Danger!
Care must be taken that drive elements attached to the gear unit, such as clutches,
pulleys etc. and drive motors are also ATEX-compliant.
Danger!
Gears with integrated return stops are marked with arrows on the driven/driving sides.
The arrows point in the rotation direction of the gear unit. It must be ensured, when
connecting the motor and during motor control, that the gear unit can only operate in
the rotation direction, e.g. by means of a rotary field test. Switching of the motor into
the blocked direction of rotation, i.e. the wrong direction of rotation may cause damage
to the gear unit.