Assembly and disassembly of tower cranes and lifting equipment includes the following services: 

1. Development of the assembly-disassembly project. This includes planning, calculating the necessary materials and equipment, choosing the optimal method of assembly and disassembly. 
2. Preparation of the working area. This includes assessment of work safety, installation of necessary prohibition and warning signs, cleaning of the assembly-disassembly site from unnecessary objects.
3. Assembly of tower cranes and lifting equipment. This includes assembly and connection of all components of the crane, setting up the control system, and performance testing. 4. Dismantling tower cranes and lifting equipment. This includes disassembling and removing all crane components, ensuring safety during dismantling. 
5. Diagnostics and maintenance. This includes regular inspection of the operation of the crane, detection and correction of possible malfunctions, replacement of worn parts and lubrication of moving parts.
6. Service and maintenance. This includes customer support and advice on crane operation, quick response to repair and service requests, provision of spare parts and materials. It is important to have qualified specialists who have experience in the installation and dismantling of tower cranes and lifting equipment, and also have the necessary permits and safety certificates.