Operating Procedures and Load/Operational Limits
Every tower has a rated capacity and a set of operating limits that must not be exceeded. Candidates must understand the difference between the rated load (the manufacturer's safe working load), the actual load (people, tools, materials), and the effect of load distribution - an eccentric load reduces effective capacity even when total weight is within the rating. Wind is an operational limit in its own right: most towers have a maximum in-service wind speed and a separate, higher survival speed when unoccupied.
Traps include confusing rated capacity with the number of persons permitted, ignoring the weight of materials, and treating the wind limit as advisory. Questions may describe a tower rated for a certain number of persons and ask whether additional equipment can be added - the answer depends on the combined load against the rating, not on floor space. Another trap is operating a tower on a slope or soft ground outside the manual's allowance.
Operating procedures also cover access (correct gates, no climbing the frame), housekeeping to prevent dropped objects, and communication with the ground. The operator or user must be briefed on the limits before use.
Rule of thumb: total load = persons + tools + materials, checked against the rating, with distribution considered. Worked example: a tower rated 300 kg with three persons at 80 kg each leaves 60 kg for tools and materials - a single bag of cement and a toolbox may already exceed it.