Siemens NXAIR M Operating Instructions Manual page 199

Fitting the earthing device
Align the two cross bolts on the spindle of the central earthing tulip with the guides in the
coupling of the earthing rod. Plug the earthing tulip on the coupling and push it in until the
two cross bolts touch the end of the guides.
Fig. 334: Plugging the tulip onto the earthing rod
Seize the earthing rod in the safe hand area with both hands. The limit of the safe hand area
is marked by a ring.
Fig. 335: Seizing the earthing rod in the safe hand area
Lead the coupling of the earthing rod with the earthing tulip on it towards the central bushing
contact, and push the earthing tulip firmly onto the bushing contact. Hereby, the earthing rod
must point exactly towards the bushing contact.
Continue pushing the earthing rod slightly towards the bushing contact. While doing so,
carefully turn the earthing rod clockwise at the cross lever to fix the earthing tulip on the
bushing contact.
139-2021.9 / 07 NXAIR M 199