Barrie, HSE produce a short Guidance Note: PM 55 - Safe Work with Overhead Travelling Cranes. It might be a good starting point. There is a British Standard, 5744, Code of Practice on the Safe Use of Cranes, but it is wieldy document covering a multitude of crane types.

Hi Barrie Some of this might be obvious but here goes: Firstly, not knowing whether the crane will be stand-alone or a separate structure, it must be ensure the installation is structurally sound for the weight (including max. load) which will be carried. It should also be subject to an initial Thorough Examination by a Competent Person to confirm this, with certification of this held for inspection (LOLER Regs). The provider of the equipment has an S.6 HASAWA duty to provide information relating to the safe use of this equipment and should be of some help. As LOLER applies there is an ongoing need for Thorough Exams of the equipment - default options annual for crane, 6 months for accessories (lifting chains, etc). Training needs - competence for crane operator and slingers. Not sure where to track down training - check local carane companies for advice? Will also require risk assessments of activities probably augmented by written safe systems of work. These will cover procedures for various lifts and protection of all persons in vicinity. These themselves will have to be implemented by means of training. Also consider PPE for operatives. Sorry to rush but must sign off.