The Trolley System allows to move the bell from the clamped position close to the Hyperbaric Chamber to the moon pool and vice versa.

The trolley is equipped with a couple of pliers to release the bell for launching and catch the bell pins during recovery operation. The main features are:
Secure trolling thanks a couple of hydraulic cylinders. The cylinders are able to fix the trolley in position, avoiding any movement of the bell due to vessel acceleration.
Horizontal movement of the trolley from moonpool to mating position and viceversa.
Vertical movement is also available in order to align the diving bell man hole to the bell mate trunk
Four legs are foreseen on the edges of the trolley in order to guide the bell smoothly the cursor inside the moonpool rails.