After the Turntable is installed the Tower Top is added and four large pins are added as the connecting members.
To make the crane operational, the ropes must be installed on the crane. The hook is moved along the Working Jib with a Trolley. Ropes are attached to the trolley and a winch. This work can take between an hour and three depending on the size of the crane and its design. The Load Line that hoists the rope is installed after the trolley lines. It runs from the back of the crane, through the tower top and out under the jib to the outer tip of the crane and is pinned in place either through a thimble or through a wedge and socket.
The final process to make the crane operational is to set the motion limits for the hoist and trolley, followed by performing a load test to 100% of the cranes capacity. You now have a functional Tower Crane.
The entire process includes up to 13 trucks, can include seven crane erectors, three crane operators, two mobile cranes. If no problems occur, most cranes can be erected in one day by a competent crew. The installation of the ropes and load testing can take up to a full day as well, but on small cranes, it can be done in the same day. Erecting a tower crane costs range between $15,000 for the smallest of the fixed base cranes to over $60,000 for crane erections requiring large mobile cranes