Appendix – NORD Drivesystems B2000 User Manual

Page 43

6. Appendix

www.nord.com B2000-GB-0413

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UNIVERSAL worm gear units

SK 1SI 31 – SK 1SI 75

SK 1SIS 31 – SK 1SIS 75

Figure 6-4: Orientation for oil level check.

For the oil level check, the gear unit or the geared motor must be brought into the orientation
shown above. To do this, it may be necessary to remove the gear unit or the geared motor.

NB: An adequate resting time of the warm gear unit in the position shown in Figure 6-4 must be
observed, in order to allow the oil to settle evenly.

The oil level can then be checked as described in Section 4.1.

In Category 2G and 2D the gear units only have one oil level screw. These gear unit types have
a checkable life-long lubrication.

In ATEX Category 3G and 3D, the gear units are not fitted with an oil level screw (See rating
plate, Section 3.4).

The gear unit types SK 1S xx, SK 2S xx, SK 1SU xx, SK 2SU xx, SK 1SM xx, SK 2SM xx,
SK 1SMI xx, SK 2SMI xx may only be used in category 3G and 3D.

As an option, types SI and SMI can be equipped with a vent screw. Gear units with vents must
be installed in the stated position.

Types SI, SMI, S, SM and SU as 2-stage gear unit types and types SI, SMI as worm gear units
for direct motor mounting have an oil filler which depends on the version and must be installed in
the stated position.