The threaded rods from which the crane track will later be hung are now fitted on the installed ceiling-mounted bracket for the vertical load-bearing section and for the stiffener.

On the additional ceiling-mounted bracket for the stiffener, the individual parts of the stiffener are mounted and these are then connected with the vertical load-bearing section.

Overview:

Minimum length of the threaded rod on the vertical load-bearing section (LW1) is 300 mm

On the ceiling-mounted bracket:

  Screw the coupling (both sides with right-hand thread) on the ceiling-mounted bracket.

  Screw the shortened or lengthened threaded rods in the coupling.

  Turn the coupling so that the boreholes are visible.

The threaded rod has a cross-drilled hole on the ceiling-mounted bracket. Turn the coupling in such a way that the hole facing across the later HB crane runway is used.

  Insert spring cotters (2x).

On the lower end of the threaded rods an articulated girder is now installed. This is where the vertical load-bearing section will later be connected with the stiffener.

On lower end of the threaded rod:

  Screw the M16x1.5 hexagonal nuts (2x) about 40 mm onto the threaded rod.

  Insert the articulated girder on the threaded rod.

The ceiling-mounted bracket of the stiffener is now connected with the previously mounted articulated girder of the vertical load-bearing section.

  Determine the length of the threaded rod (a) for the stiffener.

To do this, measure the distance of the two holes (b) between the articulated girders and subtract twice the inner length of the clamping joint (c = 2x 56 mm).

  Shorten the threaded rods for the stiffener to the determined length.

On both ends of the threaded rod:

  Screw the M16x1.5 hexagonal nuts (2x) onto the shortened or lengthened threaded rod.

  Screw the threaded rod into the tension nuts (2x) until the end of the threaded rod is flush with the tension nut on the inside (see enlarged section of the illustration).

  Lock with hexagonal nut.

On the ceiling-mounted bracket:

  Insert the clamping joint between the articulated girders on the ceiling-mounted bracket of the stiffener. Use the hole facing the vertical load-bearing section.

  Insert bolt through articulated girder and clamping joint.

  Secure bolt with SL safety clip.

On the threaded rod:

  Insert clamping joint between the articulated girder on the vertical load-bearing section. Use the hole facing the stiffener.

  Insert bolt through articulated girder and clamping joint.

  Secure bolt with SL safety clip.

The HB crane runway will later be installed on the lower end of the threaded rod.

  Check for play of the stiffener.

The stiffener should not hang loosely or wobble between the two articulated girders. It must sit firmly and without play on the articulated girders.

If the stiffener has play:

  Turn the tension nut in the clamping joint to tension the threaded rod until the stiffener lies free of play between the articulated girders.