Preparing the wall mounting: weld-on plates

Grind the top and bottom anchor plates with a grinder and clean them prior to welding.

● The anchor plates must be free of dirt, rust, scaling, paint, grease and oil.

Using a spirit level, compare the anchor plates to the crane drawing and whether they are plumb to each other.

Mark the centre of the upper anchor plate.

Mark the centre or plumb line of the lower anchor plate.

Mark the centre of the upper edge of the anchor plates.

Screw the hexagon head screws (2x) slightly more than halfway into the top weld-on plate.

Fasten a suitable securing tool (e.g. safety belt) to the screwed-in hexagon head screws.

Position the weld-on plate in front of the upper anchor plate as per the markings using a spirit level.

Tack weld the weld-on plate onto the anchor plate.

Screw the hexagon head screws (2x) slightly more than halfway into the bottom weld-on plate.

Fasten a suitable securing tool (e.g. safety belt) to the screwed-in hexagon head screws.

Position the weld-on plate in front of the lower anchor plate as per the markings using a spirit level.

Fasten the weld-on plate onto the anchor plate.

Check the position of both weld-on plates and correct if necessary.

Being positioned perpendicular to each other is important as this is crucial for the slewing process.

Weld on the weld-on plates fully.

Only have welding work done by companies certified as per EN 1090 EXC-3.

Monitor welded joints according to this standard.

Design welded joints to at least quality class B of DIN EN ISO 5817.

Weld seam cross sections depending on size: