Are you looking for an inspector for a used crane? Did you come across or did you hear from SGS or TÜV? If you are looking for statutory or safety inspections for cranes SGS is a good solution. Well trained staff and available in many countries.
Does SGS understand used cranes?
There is a difference between inspection of a used crane for a buyer and a safety or statutory inspection. An inspector who is trained for Loler or OSHA inspections does not necessarily understand what a purchaser of a used crane wants. This is the situation when MEVAS comes on stage.
Crane inspections by our experts
MEVAS inspectors understand, how to prepare a reasonable inspection report for buyers of used cranes. A detailed report focuses on machine details such as leaks, maintenance status, wear in ropes, wear on tires and other details which are influencing the remaining value of a crane. Our technicians know how to take reasonable pictures and videos. They crawl under the crane to search for cracks and leaks. Rust on chassis is estimated as well as condition of tool boxes, swing bearing and telescopic cylinder condition. Our engineers use a specific checklist for each type of crane. We have inspected mobile cranes up to 500 to lifting capacity and large crawler cranes for windmills.
How much tilting play is allowed in the slewing ring of a mobile or a crawler crane?
Ask three specialists and you will get three different answers. If you ask Liebherr, i.e. the people who would like to sell you a repair or a new slewing ring, you will get the statement that the tolerance limit would be reached at 0.9 mm tilting play. If you ask a mobile crane user in Eastern Europe or Africa, they will say anything under 5mm is fine.
What does a crane inspector say about swing bearing play?
As inspectors of used cranes, what is our opinion on this? Since the tilting play in the slewing ring is sometimes 0.3 to 0.6 mm even on new cranes, we do not think it is necessary to criticize a slewing ring if it has less than 1.2 mm tilting play. To know exactly, you should also measure the slewing ring play over at least three or four sides. Experienced inspectors know exactly how the procedure must be carried out. It is particularly important that the crane is ballasted. When we inspect a used mobile crane, we typically only measure across one side. Only when there are doubts about the condition is it measured over several pages.
Why is it important to measure swing bearing play from time to time on a mobile crane?
Measuring swing bearing play on a mobile crane is crucial for several reasons, and it plays a significant role in ensuring the safe and efficient operation of the crane. Here are some key reasons why it’s important to regularly measure swing bearing play:
Excessive swing bearing play can compromise the stability and structural integrity of the crane, leading to potential accidents or tip-overs. Regular measurements help identify issues before they become critical, ensuring the safety of both operators and bystanders.
Monitoring swing bearing play allows early detection of wear and tear. Addressing any play or movement issues promptly helps prevent further damage to the swing bearing and other related components, thus extending the overall lifespan of the crane.
Properly functioning swing bearings are essential for smooth crane operation. Excessive play can lead to imprecise control and reduced accuracy during lifting and positioning tasks. Regular measurements help maintain optimal operational performance.
Imagine a crane has the boom extended to 80 or more meters and there is 5mm play on swing bearing. On getting load the tip would reduce height and angle of boom significantly.
Regularly checking swing bearing play is a part of preventive maintenance practices. Identifying and addressing potential problems early can prevent more extensive and costly repairs in the future, minimizing downtime and maximizing crane availability.
Many regulatory bodies and safety standards require periodic inspections and maintenance of crane components, including swing bearings. Regular measurements help ensure compliance with these regulations and standards, reducing the risk of legal and financial consequences.
Proactive maintenance based on regular measurements can be more cost-effective than reactive repairs. Early identification and correction of swing bearing issues help avoid major breakdowns and the associated costs of emergency repairs and crane downtime.
A crane with a well-maintained swing bearing is more reliable and less likely to experience unexpected failures. This reliability is crucial in construction and industrial settings where cranes play a vital role in various operations.
In summary, measuring swing bearing play on a mobile crane is essential for maintaining safety, extending equipment life, ensuring optimal performance, complying with regulations, and ultimately minimizing costs associated with repairs and downtime. Regular inspections and maintenance contribute to the overall reliability and efficiency of the crane in its operational environment.
How much does it cost to replace a worn slewing bearing?
Depending on size and lifting capacity of a crane or an excavator the swing bearing itself can easily cost above 8.000 Euro. Then you need all the pins to fix it on superstructure and chassis. That’s another 1.500 Euro at least. But with this cost the slew ring hasn’t been exchanged yet. Cranes are required to lift the superstructure. You need big tools to open and fit the pins with appropriate torque. All in all the replacing cost for a sllew ring will be in most cases far above 10.000 Euro.
For the reason of the big cost it is strongly recommended to measure the play if you are buying a crane or a larger excavator. Hire an expert to inspect a used crane and check out those details.
I guess they came to this website because they are looking for a free inspection form for cranes. A good checklist for inspecting a used crane is based on the procedure of a crane inspection. The form is designed in such a way that a crane inspector can carry out all the tests during the inspection and the test procedure is completed in a certain amount of time. The form is therefore not intended to hinder the crane inspector, but to guide him. All assemblies are listed in the order in which they will be tested during the inspection. Checklists for cranes must of course also be based on the type of construction of the crane. So there cannot be a single checklist for any given type of crane, but separate checklists must be drawn up for each type of crane.
Crane inspection check-list free download ?
Now the question arises, how good can a document distributed free of charge be? Someone has invested a certain amount of time to develop an inspection form for cranes. The expectation that you can download such a form for free, like everywhere else on the internet, is widespread. Especially if there are many different checklists for cranes, someone has therefore invested quite a lot. So why should you give something like this away for free? Our offer looks like this: If you order a crane inspection from us, you will receive a completed form from us. This means that you will receive a checklist that exactly matches the crane you want to buy. If you are looking for a free checklist for cranes, we are sorry to disappoint you, but perhaps you will find what you are looking for on another website. We have a saying for this: What costs nothing is worth nothing. We at Mevas wish you good luck in your search.
To provide the best experiences, we use technologies like cookies to store and/or access device information. Consenting to these technologies will allow us to process data such as browsing behavior or unique IDs on this site. Not consenting or withdrawing consent, may adversely affect certain features and functions.
The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.
The technical storage or access that is used exclusively for statistical purposes.The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.
The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes.