A crane can look serviceable from the factory floor and still present a serious lifting risk. A worn wire rope, damaged hook latch, unreliable limit switch or developing brake fault may not stop production until the moment a load is in the air. That is why the question is not simply whether inspections are being completed, but how often to inspect overhead cranes at each level of risk.

For UK duty holders, the answer combines statutory thorough examination under LOLER, workplace equipment inspections and maintenance under PUWER, plus routine operator checks. Each has a different purpose. Treating them as one activity creates gaps in both safety control and compliance evidence.

How often to inspect overhead cranes under LOLER?

Most overhead cranes used for normal goods lifting require a LOLER thorough examination at least every 12 months. This is the statutory maximum interval, provided there is no written scheme of examination specifying a different frequency.

Where the crane is used for lifting people, or is classed as lifting equipment associated with lifting people, the interval is generally every six months. Lifting accessories such as slings, shackles, chains, lifting beams and clamps also normally require thorough examination every six months.

A competent person must complete the thorough examination. They need the technical knowledge and practical experience to identify defects, assess their significance and decide whether equipment remains safe to use. The examiner must also be sufficiently independent and impartial to make that judgement. A thorough examination is not a quick visual check, and it is not the same as planned maintenance.

The legal interval is only part of the decision. A crane operating on a high-duty production line, handling abrasive materials, working outdoors or repeatedly lifting close to capacity may need more frequent examination or inspection. The same applies where there is a history of defects, heavy shock loading or harsh environmental conditions.

When an additional thorough examination is required

LOLER also requires examination following exceptional circumstances that could affect the equipment's safety. This can include an overload event, collision, impact, suspected structural damage, major alteration, prolonged out-of-service period or significant repair to a safety-critical component.

Do not wait for the next annual date after an incident. Isolate the crane if there is any doubt, record what happened and arrange a competent assessment before returning it to service. Keeping production moving matters, but lifting with an unknown fault can turn a short stoppage into an injury, damaged stock or a lengthy investigation.

Daily checks: the first line of control

Operators should carry out a pre-use check at the start of each shift, or before use where the crane is not operated continuously. This does not need to become a lengthy engineering inspection. It is a practical check that confirms the crane appears safe to use and that its basic safety functions are working as expected.

The operator should look for obvious damage to the hook, hook latch, wire rope or chain, pendant, festoon cable and controls. They should also check that warning devices, brakes, upper and lower limits, emergency stop and travel motions respond correctly. Any unusual noise, vibration, drift, jerky motion, oil leak or visible damage should be reported immediately.

A simple documented check supports accountability. It also gives maintenance teams early warning of deterioration that would otherwise be missed between service visits. Most serious crane faults do not appear without signs. They are often preceded by small changes that an experienced operator notices first.

PUWER inspections and planned maintenance

PUWER requires work equipment to be maintained in an efficient state, in efficient working order and in good repair. It also requires suitable inspections where the safety of equipment depends on how it is installed, or where deterioration could lead to dangerous situations.

Unlike LOLER, PUWER does not give every overhead crane a single fixed inspection interval. The appropriate frequency depends on the crane's age, condition, duty cycle, environment, manufacturer guidance and the consequences of a failure. A lightly used jib crane in a clean workshop will not require the same attention as a double-girder crane feeding a 24-hour fabrication line.

In practice, many sites adopt planned service visits every three, six or 12 months. High-use cranes may need quarterly preventive maintenance, while lower-duty equipment may be suitable for six-monthly servicing alongside close operator monitoring. The correct plan should be based on actual use, not just the date on a previous certificate.

A proper maintenance visit should cover more than greasing and a visual look-over. It should consider brake condition, gearbox performance, electrical panels, contactors, controls, travel wheels, end stops, rope condition, reeving, limit switches, lubrication and signs of structural wear. Defects should be prioritised according to risk, with clear recommendations and repair timescales.

Thorough examination is not maintenance

This distinction is critical during an audit or after an incident. A LOLER thorough examination checks whether lifting equipment is safe to remain in service. Planned maintenance is the work undertaken to preserve reliability and prevent components deteriorating. One does not replace the other.

For example, an examiner may identify a worn rope and issue a report requiring action. The rope must then be replaced by a competent service provider, with the repair recorded and, where appropriate, followed by a further examination. Equally, a maintained crane still needs its statutory thorough examination at the required interval.

Keeping these activities separate gives managers a clearer picture: statutory compliance, current defects, maintenance history and outstanding actions. It also makes it much easier to demonstrate control when an insurer, customer or enforcing authority asks for evidence.

Set the interval around operational risk

A sensible crane inspection programme starts with the equipment register. Record each crane's make, model, safe working load, location, age, use pattern and the accessories used with it. Then consider the conditions that shorten component life.

More frequent checks are normally justified where cranes operate across multiple shifts, make frequent lifts, handle heavy or near-capacity loads, work in heat, dust, moisture or corrosive atmospheres, or support safety-critical production. Ageing equipment may also benefit from closer monitoring, particularly where original parts are becoming harder to source.

It is equally important to assess the consequence of downtime. A failed hoist on a single-crane production bay can stop an entire line. Scheduled servicing during a planned shutdown is usually far less costly than waiting for a brake, rope or control fault to force an emergency call-out.

Records must be available when you need them

Certificates held in a filing cabinet, an engineer's van or an unread inbox do not provide effective compliance control. The responsible person should be able to confirm each crane's examination due date, access the latest report, see any defects and prove that required remedial work has been completed.

LOLER reports should be retained and made available to the relevant people. For most lifting equipment, reports are kept until the next report is made; for lifting accessories, the retention period is generally longer. Maintenance records, operator checks and repair documentation should also be organised against the individual asset.

Cloud-managed records remove much of the uncertainty, particularly across multiple sites or large crane fleets. CraneCert provides audit-ready certification and next-day LOLER documentation so managers can see what is due, what has been found and what action remains outstanding.

A practical inspection rhythm

For many industrial sites, the workable baseline is straightforward: operator pre-use checks every shift, planned maintenance at a risk-based interval, and a LOLER thorough examination at least every 12 months for goods-only overhead cranes. Accessories and people-lifting arrangements require closer statutory attention, while exceptional events trigger examination outside the normal schedule.

The right frequency is the one that reflects how your crane is actually used, while meeting the legal minimum and preventing avoidable downtime. If the records are unclear, certificates are approaching expiry or operators are reporting recurring faults, treat that as an operational warning rather than an administrative task. A planned inspection today is usually the cheapest point at which to find a problem.