6) Erection areas should be kept clear of non-essential materials, equipment and men. Before transferring any large crane section from one-plane to another (e.g from horizontal to vertical) a check should be made that no loose items (tools, bolts, etc.) have been left-falling objects are dangerous.
7) Where cranes are being erected beyond free standing heights, particular attention must be paid to the design and fitting of the frames and anchorage points to nearby building or solid structures.
8) It is important that concrete structures should be allowed to harden long enough to acquire sufficient strength to take the loads imposed on the ties of climbing cranes. Assemblies for transferring loads from crane to supporting structure should always be designed and approved by a competent engineer who should confirm that the structure is capable of supporting or withstanding the required loads.
9) Where rail mounted cranes are to be operated in a fixed position or tied in, secure stops should be fitted to the rails in close contact with the bogies to eliminate all longitudinal movement.