NORD Drivesystems B2050 - Manual (Page 14)

3. Assembly instruction,
storage, transport, preparation, installation
-14- B2050-GB-0613 www.nord.com
3.7 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.
Attention!
Gear units and geared motors are filled with oil as standard when delivered from the
factory. For filling, the lubricant stated on the name plate must be used. Please refer to
section 6.2 for the amount of lubricant.
As an option, the gear unit can be filled with lubricant.
In all cases, the oil level must be checked as per Section 4.1 prior to commissioning.
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.
Attention!
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.
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.
The pressure vent must be activated prior to commissioning. To activate, remove the transport
securing devices. Double gear units consist of two single units and are equipped with 2 oil
chambers and 2 pressure vents.
Figure 3-5: Activation of the pressure vent
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.