NARDA SignalShark 3330 Consignes D'utilisation Et De Sécurité page 75

Mounting the threaded rods to the U profiles
It is possible to pre-assemble one end of the threaded rods on the device.
NOTE:
This makes subsequent mounting on the mast easier and increases safety
because fewer loose parts need to be carried and mounted.
Fig. 13: Pre-assembly of threaded rod on U profile
1. Screw a hexagon nut approximately 5 cm onto the threaded rod.
2. Feed the end of the threaded rod with the pre-assembled hexagon nut
through the appropriate hole on the inner side of the U profile and secure
the threaded rod using a hexagon nut on the outer side.
3. Tighten the hexagon nut.
4. Repeat for all threaded rods.
Narda
SignalShark 3330 Outdoor Unit 75