You can prevent unexpected crane breakdowns by investing in preventive maintenance and regular inspections. By having a crane system checked at fixed intervals and addressing minor wear in time, you significantly reduce the risk of sudden failure. In this article, we answer the most frequently asked questions about crane maintenance, breakdowns, and inspections.
What are the most common causes of crane breakdowns?
The most common causes of crane breakdowns are wear of mechanical components, inadequate lubrication, electrical faults, and system overloading. Many breakdowns do not occur suddenly, but are the result of prolonged deferred maintenance or ignoring early warning signs.
In practice, these are the causes that occur most frequently in overhead crane breakdowns:
- Mechanical wear of brakes, wheels, axles, and bearings due to intensive use
- Insufficient lubrication of moving parts, causing increased friction and faster component wear
- Electrical problems such as worn contacts, loose wiring, or faulty switch cabinets
- Overloading where the crane is structurally loaded beyond its permitted lifting capacity
- Contamination and corrosion in environments with dust, moisture, or aggressive substances
- Improper use by operators who are untrained or insufficiently trained
The good news is that most of these causes are manageable with a well-thought-out maintenance plan. Those who pay structural attention to crane maintenance prevent small problems from growing into costly breakdowns.
How does preventive maintenance on a crane system work?
Preventive maintenance on a crane system means checking, lubricating, adjusting, and replacing all critical components at fixed, planned intervals as needed. The goal is to detect wear and defects before they lead to a crane breakdown, so that production processes can continue uninterrupted.
A good preventive maintenance plan for a crane system consists of multiple levels:
Daily and weekly checks
Operators perform brief visual inspections before and after use. They look for unusual sounds, vibrations, visible wear on cables and hooks, and verify that emergency stop functions work correctly. These quick checks take little time but yield valuable information.
Periodic technical maintenance services
A certified technician carries out more extensive work on a monthly or quarterly basis. This includes lubricating bearings and gears, checking brakes and limit switches, measuring wear on wheels and rails, and going through the electrical installation. Based on the findings, components are preventively replaced before they actually fail.
How often does a crane need to be inspected?
A crane must be inspected at least once a year by an accredited inspection body. This is legally required in the Netherlands and Belgium for hoisting and lifting equipment used in a commercial environment. Depending on the intensity of use and environmental conditions, a higher inspection frequency may be necessary.
The annual crane inspection includes a full technical assessment of the structure, mechanical components, electrical installation, and safety provisions. After the inspection, you receive an inspection report with any recommendations or mandatory remedial work.
In addition to the legally required annual inspection, many specialists advise increasing the inspection frequency to twice a year for intensive use, such as multiple shifts or working at maximum lifting capacity. This ensures safety is maintained and wear patterns are detected in time.
What signals indicate an impending crane breakdown?
Signals indicating an impending crane breakdown include unusual sounds, vibrations, reduced travel speed, abnormal braking behavior, and visible wear on cables or hooks. Those who recognize and take these warning signs seriously can intervene before a minor deviation grows into a complete standstill.
Pay specific attention to the following warning signs:
- Squeaking, creaking, or grinding noises during travel or lifting, which may indicate dry bearings or damaged gears
- Irregular or jerky movements of the trolley or bridge, which may indicate wear on wheels or rails
- Slower responses when operating the crane, which may indicate electrical problems or brake wear
- Visible damage to cables, chains, or the hook, such as wire breaks, deformation, or corrosion
- Oil leaks at gearboxes or hydraulic components
- Frequent blown fuses or control system faults
Train operators to actively recognize these signals and report them immediately. An early report makes the difference between a planned maintenance moment and an unexpected and costly standstill.
What is the difference between preventive and corrective maintenance?
Preventive maintenance takes place at planned intervals to prevent breakdowns, while corrective maintenance is carried out after a breakdown or defect has already occurred. The difference therefore lies in the moment of intervention: before or after the problem.
Both forms of maintenance play a role in managing a crane system, but each has a different impact on costs and business continuity:
Preventive maintenance
With preventive maintenance, you schedule inspections and replacements at fixed intervals, regardless of whether a component already shows visible problems. This extends the lifespan of the system, reduces the risk of unexpected failure, and makes costs predictable. The downside is that you sometimes replace components that could have lasted longer.
Corrective maintenance
Corrective maintenance comes into effect as soon as a crane actually fails or shows a defect. Although this may seem cheaper in the short term, it carries significant risks: production losses due to unplanned downtime, higher repair costs due to urgency, and potential safety risks. In industrial environments with high production pressure, the consequences of an unexpected crane breakdown are often many times more expensive than structural preventive maintenance.
When is it wise to take out a maintenance contract?
A maintenance contract is wise as soon as a crane plays a crucial role in your production or logistics process and downtime directly leads to standstill and revenue loss. For companies that depend on their crane system daily, a maintenance contract offers certainty, predictable costs, and professional support.
A maintenance contract is certainly recommended in the following situations:
- The crane is used intensively, for example in multiple shifts
- There is no in-house technical expertise to carry out inspections
- The crane lifts heavy or dangerous loads where safety is paramount
- You want to comply with statutory inspection and certification requirements without having to organize this yourself
- Unexpected repair costs need to be avoided for budget control
With a maintenance contract, you know in advance what you pay, how often your system is checked, and who to call in case of a problem. That provides peace of mind and prevents maintenance from being postponed until it is too late.
How BKRS helps prevent crane breakdowns
We at BKRS understand that a crane breakdown never comes at a good time. That is why we offer a complete package of services to keep your crane system performing optimally, from the first inspection through to structural preventive maintenance. This is what we can do for you:
- Annual certifications and inspections by certified staff, fully in accordance with the statutory requirements in the Netherlands and Belgium
- Tailor-made preventive maintenance, tailored to the type of crane, intensity of use, and environmental conditions
- Maintenance contracts where we take full care of planning, execution, and reporting
- A single point of contact for all questions regarding maintenance, inspection, and any repairs
- More than 40 years of expertise in building and maintaining complex crane systems
Whether you manage an overhead crane, gantry crane, or another type of crane system, we are happy to think along with you about the best approach. View our complete maintenance and inspection offering or contact us directly for a no-obligation conversation about your situation.
Frequently Asked Questions
How long does a preventive maintenance service on a crane take on average?
The duration depends on the type of crane and the scope of the work. A periodic technical maintenance service takes on average half a day to a full day. By planning maintenance well in advance, you keep downtime to a minimum.
Am I as a company allowed to carry out maintenance on my crane myself?
Daily visual checks by trained operators are permitted, but technical maintenance and legally required inspections must be carried out by certified technicians or accredited inspection bodies. Carrying out maintenance yourself without the proper certification can lead to rejection of the crane and liability risks.
What are the costs of a maintenance contract for a crane system?
The costs vary depending on the type of crane, the intensity of use, and the desired service level. However, a maintenance contract offers predictable costs and prevents expensive emergency repairs, making it almost always more cost-efficient in the long run than ad-hoc corrective maintenance.
What should I do if my crane suddenly breaks down during production?
Switch off the crane immediately and ensure the surrounding area is safe, especially if a load is still attached to the hook. Report the breakdown to a certified maintenance technician and only resume use after the crane has been approved. Never attempt to fix the breakdown yourself without the proper technical knowledge and authority.