The element consists of two parts: a hollow outer jacket with large fins, and a movable anchor tube. The clamp of the vibratory hammer must therefore also be able to grip two parts.
First, the outer casing is attached to the vibrator with two chains. Next, the pointed anchor tube is placed in the desired position and the outer casing is lowered around the middle pin. This anchor tube is clamped by the vibrator first and then vibrated into the ground until the square flange on the outer tube touches the lower clamping section.
Now the outer tube can be positioned exactly right - by hand. Next, the clamping arms are closed around the flange of the outer tube at the bottom. Now both tubes are vibrated together to the correct depth.