High Risk Work Licence - Materials Hoist (HM) common mistakes
High Risk Work Licence - Materials Hoist (HM) · Understand the traps and how to avoid them.
Reciting that 'the operator must hold a current high risk work licence' but failing to state that the licence class must specifically cover materials hoists, and that unlicensed operation or operating outside the class is an offence for both operator and person conducting the business.
Candidates memorise the general duty statement and treat 'licence' as a single tick-box, missing that the HM class is discrete and that supervisors who direct an unlicensed person also breach their duties.
What to do instead
Write the rule as a chain: task identified as high risk work → correct class of licence (HM) → licence current and carried/produced on request → PCBU must not direct an unlicensed worker. Practise explaining the consequence for each link.
Confusing the person conducting a business or undertaking's primary duty to eliminate or minimise risk so far as reasonably practicable with the operator's own duty of care, and answering as though only the operator is responsible for safety on the hoist.
Duties overlap in practice, so candidates collapse them into one answer and lose marks when a question asks who is responsible for a specific control such as barricading or signage.
What to do instead
Build a responsibility matrix: PCBU (provide plant, information, training, supervision, safe system of work), supervisor (enforce, verify), operator (follow system, inspect, report faults, stop when unsafe), other workers (comply, report hazards). Answer 'who' questions by naming the level and the evidence of discharge.
Treating the pre-operational inspection as a visual glance and listing 'check the hoist looks okay' instead of a sequenced inspection of specific items with acceptance criteria and a recorded outcome.
Candidates learn inspection as a concept rather than a checklist, so they cannot recall the actual items or the pass/fail threshold for each, and they forget that defects must be tagged out and reported in writing.
What to do instead
Memorise a fixed sequence: structure and base, mast/guides and ties, car/platform and gates, ropes/chains and terminations, sheave and pulleys, brakes, limit switches and interlocks, controls and emergency stop, signage and barricading, logbook. For each, state the acceptance criterion and the action if it fails.
Describing the exclusion zone as 'keep people away' without specifying how the zone is determined, marked, maintained and communicated, or who may enter it and under what conditions.
Exclusion zones feel intuitive, so candidates give a slogan rather than a control. They also forget that the zone must account for the full travel path, the landing areas and the fall or drop radius, and that it changes as the work moves.
What to do instead
Answer in four parts: size and shape justified by the hazard (dropped loads, moving parts, travel path, overhead work), physical barrier type, signage wording and placement, and the authorisation and communication process for entry. Note that the zone is re-established as the hoist or work front moves.
Using the rated capacity as a single number and ignoring that capacity varies with configuration, such as number of falls of rope, mast height or tie arrangement, and that the load must include rigging and attachments.
Candidates treat capacity as a fixed plate value and forget that gross load equals the payload plus slings, spreaders and any attachments, and that a capacity plate is only valid for the configuration it was issued for.
What to do instead
State the rule as: identify the configuration, read the capacity for that configuration from the manufacturer's data, calculate gross load including all rigging, confirm gross load is below capacity, then verify the load is secure and balanced. Practise a worked example with sling and attachment mass added.
Giving a signal description that is vague or non-standard, such as 'wave to the operator', instead of naming the standard hand and whistle signals and the rule that only one nominated signaller directs the operator.
Candidates rely on everyday gestures and do not rehearse the standard signal set, and they forget the emergency stop signal, which any person may give.
What to do instead
Learn the signal set as a list with the action for each, plus the rule that one signaller is nominated and identified, that the operator obeys only that person, and that a stop signal from anyone must be obeyed. Rehearse describing the signal in words precise enough for someone who cannot see you.
Treating the post-operational phase as 'switch off and walk away', omitting the landing of the car, isolation and lock-out, securing against unauthorised use, and completion of the logbook and fault records.
Attention naturally concentrates on the operating phase, and shutdown tasks feel administrative, so candidates list only the power switch.
What to do instead
Use a shutdown sequence: land and secure the car, remove the load and rigging, lower and isolate, apply lock-out and tag, secure gates and access, housekeeping, complete logbook and report any defects found during the shift. Recite the sequence in order until it is automatic.
Answering emergency questions with generic advice such as 'stay calm and call for help' rather than a specific response for a defined event, including who is notified, how the area is secured and what must not be done.
Emergency scenarios are learned as narrative rather than as decision points, so candidates cannot say what they would actually do first, second and third for a stalled car, a jammed load, a parted rope or an injured person.
What to do instead
Prepare three or four scenario scripts: suspended or stalled car with a person aboard, load jam or snag, rope or chain failure, and injury or electrical incident. For each, state immediate action, isolation, notification, exclusion, and the prohibition on improvised recovery such as climbing the mast or reaching into the travel path.
Confusing maintenance responsibility with operator responsibility, for example stating that the operator performs scheduled servicing, or stating that maintenance records are optional if the hoist 'seems fine'.
Both roles touch the equipment daily, so the boundary blurs, and record keeping is treated as paperwork rather than as evidence of a safe system.
What to do instead
Draw the line clearly: operator does pre-start checks, minor user-level tasks permitted by the manufacturer, fault reporting and logbook entries; competent persons do scheduled inspection, testing and repair. State that records of inspection, maintenance, repair and operator checks must be kept and be available for inspection.
Describing risk control as 'assess the risk and use caution' without applying the hierarchy of control, and without explaining how a control is verified as effective and monitored over time.
Candidates learn the hierarchy as a list of words but do not practise applying it to hoist hazards, so they cannot show elimination, substitution, engineering, administrative and PPE controls in a realistic order.
What to do instead
For each common hoist hazard - dropped load, crush at landing, falls from height, electrical, wind, unauthorised access - write the control at each hierarchy level and identify which level the chosen control sits at. Add how effectiveness is checked and reviewed, and what triggers a review such as a change in configuration or an incident.