How Often Must I Inspect My Overhead Crane?

How often should you inspect your overhead crane? I can tell you that this question gets asked to me quite often. Depending on the use of the crane, the class, or the location of the overhead crane, will change the answer to that question quite a bit. Here, I will give you the guidelines and you can decide which category your crane falls into.

To know the frequency of inspection will require you to understand the usage of your crane.  The inspection intervals are broken up in three usage categories. You have Normal Usage, Heavy Usage, and Severe Usage. Most overhead cranes fall under normal usage but let me give you the guidelines for each usage so you can decide for yourself which category your cranes fall under.

Normal Service – Around 5 lifts an hour, Can pick up over 50% capacity but not over 50% of loads at rated capacity

Heavy Service – Pick up over 50% of rated capacity, 5 to 10 lifts an hour and 65% of loads at rated capacity

Severe Service –Pick up near capacity on most loads, 20+ lifts an hour

According to ANSI B30.2-2011 there are five categories for overhead crane inspections; Initial, Functional, Test, Frequent, Periodic, and “Crane not in regular service”.  All these inspections require a qualified person to determine which deficiencies are safety issues.

Initial Inspection

The initial inspection is a documented visual inspection that is required after the installation of a new crane or hoist, and equipment that has been reinstalled from alteration, modified or repaired.

Functional Test Inspection

This is your pre-shift inspection. Every shift your overhead crane operates, this test must be performed.  You will be testing all the functions of the overhead crane and performing a visual and audible inspection. In addition to the functional test, the upper limit of the hoist is also required to be tested, and the wire rope or load chain requires a visual inspection as well.  Documenting this inspection is not required but it is advised. Documentation will show that the overhead crane has been tested so other operators on that shift know it is safe to use. The documentation will also show that you are pro-active when it comes to safety in your facility which will help greatly if an accident ever does occur within your facility.

Frequent Inspection

A frequent inspection is another visual and audible inspection of your overhead crane. The frequent inspection is based upon the usage of your crane. There are three different categories of the frequent inspection. Which one does your crane fall into?

Normal Service – Monthly

Heavy Service – Weekly to Monthly

Severe Service – Daily to Weekly

During this inspection you would do everything on the functional test inspection, and you also check the “operating mechanisms”. The hoist brake is the most important component to inspect next to the wire rope or load chain. This will have to be checked and made sure that it functions properly and any adjustments would need to be made at this time. The inspector should be listening for any abnormal sounds. The hook and latch requires an inspection as well. The frequent inspection does not require a record like the functional test inspection but “should” be made.

Periodic Inspection

The periodic inspection is the inspection that many overhead crane owners call their annual inspection. The usage of the crane again depends on the frequency of inspection.

Normal Service – Yearly

Heavy Service – Yearly

Severe Service – Quarterly

Please note however the periodic inspection is not in the state of California. In California annual inspections are required on all overhead cranes, and also quarterly preventive maintenance is required regardless of the service class or crane capacities.

Now what about that crane you have that you rarely use? If you have a crane that has not been used for more than a month but it is under 1 year, then you will be required to perform an inspection on it prior to use. The same applies if it has been more than one year as well. My suggestion to you is that if you know you’re going to use it, then get it inspected. If you know you are not going to use it, and it will not be used in any emergency then wait to get it inspected when you need it.

In addition to the five categories of inspections, the manufacturer of your overhead crane will sometimes require additional inspections. If this is the case on your overhead crane, then this must be followed as well. These additional inspections could include quadrennial gear case, motor coupling, bottom block, or load brake inspections. Your owner’s manual will list these requirements so make sure you have a copy of one.

There are several overhead crane owners that I know of that simply either cannot afford to do the required frequency of inspection or feel that they can get away with just an annual inspection. However, just doing an annual inspection does not make you compliant and if the reason you’re doing the annual inspection is to stay compliant, then you would need to do all the required inspections. A crane that is used often can be unsafe to use if the frequency of inspection is not followed. If someone was to get hurt in your facility from a faulty overhead crane component and OSHA was to investigate, doing one annual inspection is not going to reduce any penalties. You still missed the daily, monthly, and frequent inspections. You’re also creating a lot of wear and tear on your crane that can easily be preventive with routine maintenance. Your overhead crane operators  are required to have operator safety training as well. I am willing to bet if your not doing the inspections then your definetly not doing the training either. This is how accidents happen. Having cranes that are not maintained and operators that are not trained. Not only is it against regulations, you are putting your employees at great risk. Take the time to know what inspections are required of your crane. Talk to a reputable overhead crane company that can consult with you and help ensure that your cranes are inspected at the correct frequency.

Can You Hoist a Below The Hook Device Over a Person’s Head?

Think about it. If the crane has no load except the below the hook device are you allowed to lift it and transport it with an overhead crane over someone’s head? I am hoping your answer is “no” because that is the correct answer. People will try to argue this on many levels but you are never allowed to lift any load over someone’s head. I will visit customers and I am amazed at what I often see. Loads are continually lifted over personnel’s heads, and because no one has ever gotten hurt they continue to do so. Is that what it takes to get people to not do something they really shouldn’t be doing? I truly think OSHA needs to spend more time visiting facilities in the general industry and monitor their operation.

In 2007 OSHA wrote an interpretation letter specifically regarding this issue.  Never is there a time when it is ok to lift something over someone’s head. This letter refers back to OSHA’s regulation 1910.179 (n)(3)(vi) which states, The employer shall require that the operator avoid carrying loads over people. It is the employer’s responsibility to ensure that loads are not carried over someone’s head.

However, because of how this regulation is written, many people will argue that it is ok to carry an empty below the hook device over someone’s head because it is part of the crane. Again this is incorrect. OSHA defines a load as, the total superimposed weight on the load block or hook. Therefore anything below the hook is considered part of the load. This would include slings, spreader beams, scales, magnets, e.t.c.

Talk to your overhead crane service provider about your production process to ensure you are staying within the regulations that have been set in place to keep crane operators safe. Your service provider should be a team member of your production and maintenance staff. Get them involved and see how they can help you today.

New OSHA Standards on Slings

New OSHA standards have improved the regulations for slings. This new revision to the regulations requires that all slings regardless of the material require permanently affixed identification tags. This revision is part of the Standards Improvement Project Phase III. This project is to improve and streamline OSHA Standards. There are so many standards out there that the rules are so confusing, or duplicate what has already been said somewhere else and even written a different way causing much inconsistency. Many regulations are even outdated and should not apply in today’s world. This improvement project will help employers to understand the regulations better. Through better understanding employers will work safer, and be in compliance. After reading the revised regulations I think they did an excellent job at rewording much of the regulations but they did a poor job at duplicating the same message in every section. Every sections still tells you that you have to have a capacity label on anything. I would think it would be easier to read if they had a section for all lifting equipment that stated what is required for all devices regardless of what they are made of. This would save a lot of time reading the same thing over and over again every time you come to a different section.


There are several new changes to sling capacity labels and shackle markings that took effect on July 8th 2011. Previously many slings had a load capacity chart if it was a synthetic sling, or if it was a wire rope sling it had no rated capacity at all.

The new major changes are as follows….

• Remove load capacity tables for slings that were in the previous OSHA standards


• Sling Markings- Employers now must use only slings with permanently affixed identification markings that show the maximum load capacity for each sling


• Shackle Markings- Required to have rated capacity label on shackle






Much of the original regulations have stayed the same but they have also been reworded so it is easier to understand. I have the entire set of regulations that have been revised. I separated them based on what the regulations were about and compiled them together for easier reading.






• Employers must not load a sling in excess of its recommended safe working load as prescribed by the sling manufacturer on the identification markings permanently affixed to the sling.


• Employers must not use slings without affixed and legible identification markings.

Alloy chain slings also have their own specific regulations…



• Employers must permanently remove an alloy steel-chain slings from service if it is heated above 1000 degrees F. When exposed to service temperatures in excess of 600 degrees F, employers must reduce the maximum working-load limits permitted by the chain manufacturer in accordance with the chain or sling manufacturer’s recommendations.


• Effect of wear. If the chain size at any point of the link is less than that stated in Table N–184–1, the employer must remove the chain from service.


• Employers must ensure that chain and chain slings:


• Have permanently affixed and legible identification markings as prescribed by the manufacturer that indicate the recommended safe working load for the type(s) of hitch(es) used, the angle upon which it is based, and the number of legs if more than one;


• Not be loaded in excess of its recommended safe working load as prescribed on the identification markings by the manufacturer; and


• Not be used without affixed and legible identification markings.


• Employers must note interlink wear, not accompanied by stretch in excess of 5 percent, and remove the chain from service when maximum allowable wear at any point of link, as indicated in Table G–2 in § 1915.118, has been reached.

Wire rope slings have the most significant change in the entire revisal. Prior to this wire rope slings did not require a capacity label. Here are the revised regulations for wire rope slings.



• Wire-rope slings—(1) Sling use. Employers must use only wire-rope slings that have permanently affixed and legible identification markings as prescribed by the manufacturer, and that indicate the recommended safe working load for the type(s) of hitch(es) used, the angle upon which it is based, and the number of legs if more than one.


• Employers must ensure that wire rope and wire-rope slings:


• Have permanently affixed and legible identification markings as prescribed by the manufacturer that indicate the recommended safe working load for the type(s) of hitch(es) used, the angle upon which it is based, and the number of legs if more than one;


• Not be loaded in excess of its recommended safe working load as prescribed on the identification markings by the manufacturer; and


• Not be used without affixed and legible identification markings.


• When U-bolt wire rope clips are used to form eyes, employers must use Table G–1 in § 1915.118 to determine the number and spacing of clips.


• Employers must apply the U-bolt so that the ‘‘U’’ section is in contact with the dead end of the rope.

You never see natural or synthetic fiber-rope slings used today in the crane industry. There still are regulations for them since you may see them used in manual lift with shackle blocks.



• Natural and synthetic fiber-rope slings— Sling use. Employers must use natural and synthetic fiber-rope slings that have permanently affixed and legible identification markings stating the rated capacity for the type(s) of hitch(es) used and the angle upon which it is based, type of fiber material, and the number of legs if more than one.

§ 1915.112 Ropes, chains, and slings.



• Manila rope and manila-rope slings. Employers must ensure that manila rope and manila-rope slings: Have permanently affixed and legible identification markings as


prescribed by the manufacturer that indicate the recommended safe working

load for the type(s) of hitch(es) used, the angle upon which it is based, and the number of legs if more than one; Not be loaded in excess of its recommended safe working load as prescribed on the identification markings by the manufacturer; and Not be used without affixed and legible identification markings as required by paragraph (a)(1) of this section.

Shackles and hooks get overlooked more than any other lifting device or rigging attachment. Shackles and hooks still have strict regulations in place to keep workers safe and prevent any accidents. Below is the rewording of the up to date regulations 1915.13 Shackles and Hooks.



• Shackles. Employers must ensure that shackles:


• Have permanently affixed and legible identification markings as prescribed by the manufacturer that indicate the recommended safe working load;


• Not be loaded in excess of its recommended safe working load as prescribed on the identification markings by the manufacturer; and


• Not be used without affixed and legible identification markings.





The last updates the regulations received were for the general rigging equipment for material handling. This is for any piece of rigging to ensure that all below the hook devices and any material handling equipment not covered in the previous regulations will be covered here in this last set of regulations. The regulation below is the 1926.251 rigging equipment for material handling.



• Employers must ensure that rigging equipment:


• Has permanently affixed and legible identification markings as prescribed by the manufacturer that indicate the recommended safe working load;


• Not be loaded in excess of its recommended safe working load as prescribed on the identification markings by the manufacturer; and


• Not be used without affixed, legible identification markings.


• Employers must not use alloy steel-chain slings with loads in excess of the rated capacities (i.e., working load limits) indicated on the sling by permanently affixed and legible identification markings prescribed by the manufacturer.

• Employers must not use improved plow-steel wire rope and wire-rope slings with loads in excess of the rated capacities (i.e., working load limits) indicated on the sling by permanently affixed and legible identification markings prescribed by the manufacturer.


• Wire rope slings shall have permanently affixed, legible identification markings stating size, rated capacity for the type(s) of hitch(es) used and the angle upon which it is based, and the number of legs if more than one.


• Employers must not use natural and synthetic-fiber rope slings with loads in excess of the rated capacities (i.e., working load limits) indicated on the sling by permanently affixed and legible identification markings prescribed by the manufacturer.


• Employers must use natural- and synthetic-fiber rope slings that have permanently affixed and legible identification markings that state the rated capacity for the type(s) of hitch(es) used and the angle upon which it is based, type of fiber material, and the number of legs if more than one.


• Employers must not use shackle with loads in excess of the rated capacities (i.e., working load limits) indicated on the shackle by permanently affixed and legible identification markings prescribed by the manufacturer.



Below the hook devices are the most overlooked part of any inspection on a crane, especially when they are not stored on the crane itself. What you have read are all of the new regulations and the revised wording of the OSHA regulations on slings. It is very important to understand what codes your equipment fall under. If you are unsure contact your service provider and they will go over with you any regulations that you would like clarification on.



It is vital to stay up to date with the changes that occur every year. Keeping up to date is very hard and can be time consuming especially when you have other task that are not crane related. This is why it is beneficial for any company to have a inspection outsourced to professionals who inspect cranes and below the hook devices on a daily basis. When looking for a crane company to service your cranes, pick one that has an extensive training program for their technicians and inspectors so that you can be assured that your getting an accurate inspection that will include covering any new codes that have come out for the new year.