High Risk Work Licence - Slewing Mobile Crane C6 (60t) study plan

Identify and explain the capacity-derating factors on a slewing mobile crane load chart, including radius, boom length, counterweight, outrigger configuration, and slew angle.

Calculate net capacity for at least 10 different load-chart scenarios by subtracting all rigging and lifting gear weight from gross capacity.

Determine the centre of gravity and estimated mass for five common loads using dimensional and material-density calculations.

Select and inspect slings and rigging hardware for given load weights, including the effect of sling angle on tension.

State the safety factors and inspection criteria for wire rope slings, synthetic slings, and shackles according to relevant standards.

Interpret crane manufacturer's operating manual sections on outrigger spread, ground bearing pressure, and stability for the specific crane model.

Calculate ground bearing pressure for a given outrigger load and compare it to the bearing capacity of common site materials (concrete, asphalt, compacted gravel, clay).

Design a mat/cribbing solution for a scenario with soft ground, specifying mat dimensions, material, and placement.

Set up a crane on a simulated site plan, marking outrigger positions, exclusion zones, and level tolerances.

Explain the procedure for verifying ground conditions and the consequences of inadequate support.

Develop a lift plan for a complex lift using a recognised planning template, incorporating hazard identification, risk assessment, and control measures.

Perform a risk assessment for a multi-crane lift, identifying load-sharing, communication, and coordination hazards.

Determine the required crane capacity and configuration for a lift that involves a blind spot and limited access.

Sequence the steps of a lift from pre-lift checks to load landing, including contingency actions for power failure or sudden wind.

Explain the roles and responsibilities of personnel involved in a multi-crane lift, including the lift director and signal persons.

Summarise the key legal duties of a crane operator under the relevant work health and safety legislation and standards, including duty of care, hazard reporting, and licensing requirements.

List the pre-operational inspection items for a slewing mobile crane and explain the criteria for passing or failing each item.

Describe the defect reporting process, including how to record and escalate defects that affect safe operation.

Differentiate between routine maintenance tasks that an operator may perform and those requiring a qualified technician.

Explain the consequences of operating a crane with a known defect under legislation and site rules.

Demonstrate the standard hand and whistle signals for slewing mobile crane operations, including emergency stop.

Explain the requirements for maintaining communication between the operator, dogger, and signal person, including radio protocols and failure modes.

Identify powerline hazards on a site plan and calculate the minimum safe approach distances for various voltage levels.

Develop a control strategy for working near powerlines, including the use of spotter, insulation, and de-energisation.

Describe environmental hazards such as wind, lightning, and poor visibility, and state the operational limits for each.

Plan a tandem lift of an asymmetrical load, calculating load share and selecting rigging to maintain balance.

Perform a load estimation for a complex shape by breaking it into simpler components and using density tables.

Select and configure lifting gear for a lift that requires a spreader beam or equalising slings, and verify the safe working load of each component.

Explain the effect of shock loading and how to avoid it during a lift.

Describe the procedure for lifting personnel if permitted, including the additional hazards and controls.

Outline the shutdown and securing procedure for a slewing mobile crane at the end of a shift, including boom positioning, lockout, and isolation.

Describe the emergency procedures for a crane incident, such as loss of load, power failure, or fire, and the operator's immediate actions.

Explain the transport preparation for a slewing mobile crane, including dismantling, loading, and securing for road transport.

Conduct a mock incident investigation to identify root causes and corrective actions.

Review and update a risk assessment based on a near-miss scenario.

Complete a full-length practice exam under timed conditions, covering all domains.

Review incorrect answers and create a personal summary sheet of key formulas, standards, and procedures.

Perform a self-assessment against the licensing requirements and identify any remaining knowledge gaps.

Revisit load-chart calculations and rigging estimations to ensure accuracy and speed.

Finalise a quick-reference guide for on-the-job use, summarising critical safety and operational points.