CACES R487 key terms

A tower-crane arrangement changing working radius through its designed trolley movement, distinct from changing the angle of a luffing jib.

A tower-crane boom arrangement whose designed angular movement changes working radius, with actual chart and clearance requirements.

Routing of the hoist rope through specified parts and sheaves, affecting line loads and motion under the actual approved arrangement.

A designed indicator or control addressing relevant load and radius conditions, not independent proof of every structural or stability requirement.

The actual operating permission under the applicable French framework and site conditions, distinct from a practice score or CACES certificate alone.

The competence and method for erection, climbing or dismantling, which must not be inferred solely from operator-test preparation.

The specified total permitted suspended quantity under the actual chart convention, before deductions needed to determine net object capacity.

The object quantity remaining after the chart’s required accessory and equipment deductions, not a complete lift approval.

The actual horizontal load geometry relevant to the chart, including the planned path and placement rather than pickup alone.

The permitted force under the actual rope and reeving arrangement, which can govern before another chart limit is reached.

The stated horizontal or vertical convention needed to apply the appropriate trigonometric relation without reversing sine and cosine.

A force stated using a defined gravity-based mass-equivalent convention, which must not be confused with an SI force unit.

Lateral aerodynamic action on an exposed load or structure, dependent on actual wind, projected area, shape and orientation.

The space and configuration required for the crane’s approved unattended condition, distinct from the active hook path alone.

The actual coordinated arrangements for overlapping cranes or other obstacles, including relevant operating and parked conditions.

Competent review when ground, excavation, water, loading or structural conditions differ from the approved basis.

A specified machine behavior allowing relevant alignment with wind under its approved condition, not a universal brake-release instruction.

The actual applicable separation or protective arrangement near electrical lines, requiring competent jurisdiction-specific assessment rather than a foreign remembered number.

The agreed actual communication authority and method for normal movement, with clear transfer and emergency response arrangements.

A suitable pause or response to uncertainty or hazard under the actual plan, distinct from complete energy isolation.

A dynamic load effect caused by abrupt force transfer or motion, which can exceed a simple static weight comparison.

A load whose actual restraint or attachment adds uncertainty to the force needed for movement, not merely its known free mass.

Relevant current condition, restrictions, work and defects communicated between responsible operators rather than an empty signature.

Competent confirmation that work or impairment has been addressed and authorized conditions for renewed use are satisfied.