3. Storage, Preparation,
Installation
-10- B1000 www.nord.com
3.3 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.
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.
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. (For further details, please refer to Catalogue G1000)
Attention!
With gear units with an integrated back stop, switching the drive motor to the blocked rotation
direction, i.e. incorrect rotation direction, can lead to gear damage.
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.
Oil expansion tanks (Option OA) must be fitted in accordance with the attached works standard
WN 0-530 04. For gear units with an M10x1 vent plug, works standard WN 0-52135 must be
observed.
Oil expansion tanks (Option OA) must be fitted in accordance with the attached works standard
WN 0-521 30.
If a vent plug is fitted, the sealing cord must be removed from the vent plug before
commissioning. Position of the vent plug: see Section 6.1.
Figure 3-1: Activating the vent plug
If in case of drive units with the option DR the pressure vent is not fitted, the vent plug must be
replaced with the supplied pressure vent before commissioning. This is achieved by screwing
out the vent fitting and replacing it with the pressure vent and seal (refer to Section 6.2 for torque
values). Double gear units consist of two single units and are equipped with 2 oil chambers and
2 pressure vents.
Figure 3-2:
Removing vent plug and fitting the pressure vent
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