Who should inspect a crane?
Short answer: a crane should be inspected by a designated competent person for frequent checks and by a qualified person for periodic or comprehensive checks. The crane owner is responsible for making sure that person is named, trained, and authorized to act. An inspection is not a purchase order, a rental return formality, or a job for whoever has the least resistance to signing. It is a management duty.
I say that as a parts and equipment coordinator, not a safety director. For the last 8 years, I have handled replacement parts orders for Sumitomo construction machinery and related industrial equipment. I have personally made six significant mistakes that added up to roughly $9,000 in wasted budget. The most expensive lesson was about signed inspection reports: a report is only as good as the person whose name is on it.
And while I am on the subject of names: if you search for a Sumitomo Electric Industries company overview, you will get a global business with roots in wire and cable manufacturing going back more than a century. Sumitomo Construction Machinery is the part of the Sumitomo group known for excavators and cranes. Same family name, different companies. Ask the wrong one for a crane part and you will get exactly the same feeling you get from a vague crane inspection: a lot of paper, no useful answer.
Why I started asking this question
I was not always this careful. I used to think that an annual inspection by a qualified vendor or the equipment manufacturer was enough. What I mean is, I treated the inspection as a thing to buy instead of a process to manage.
The turning point happened in September 2022. A crawler crane came back from a long-term rental with a one-page annual inspection report. It looked clean. The person who signed it was not the technician who did the work. He was a dispatcher who had been handed the form and told to get it signed before the crane left the yard. He later admitted he had not looked closely at anything except the paperwork. The next operator found a chafed hydraulic line during his pre-start check. The line did not fail, but the repair cost about $1,400, and the crane lost two days of availability. It could have been much worse.
That event changed how I think about inspection responsibility. People assume the biggest risk is a hidden mechanical defect. Actually, the bigger risk in my experience is a paperwork failure. An inspection is only as good as the named person's training, independence, and authority to stop the job.
So who should inspect a crane?
There are three levels, and the answer depends on the level.
- Daily pre-shift inspections: Done by a competent person. This is often the operator, but only after the operator is trained for that specific crane. Running the machine smoothly does not mean knowing what a worn sheave looks like. The person also has to be authorized to say no.
- Frequent inspections: Done at the intervals in the manufacturer's manual and any applicable regulation. A competent person should follow a written checklist and document findings, even when there are no defects.
- Periodic or comprehensive inspections: Done by a qualified person. That could be a manufacturer technician, an in-house engineer, or a certified third-party inspector. Qualified means documented training and experience, not just a business card.
In the United States, the terms competent person and qualified person come from OSHA and ASME standards. The exact duties depend on the crane type, the standard, and local jurisdiction. I am not a safety lawyer, so I read the relevant OSHA section every time a new regulation comes out. The point is not to memorize a list. The point is to verify who is actually allowed to sign.
That is why I now put this question in every rental contract: who is the named inspector, and can I see proof of qualification? If the answer is just 'our guy will take care of it,' keep pushing. A named inspector is not a small ordering detail. It is the whole point.
The machine will usually tell you when something is wrong. The real question is whether the person who notices it has the authority to stop the show.
Small fleets can do this right
Another thing I have learned is that a small fleet does not need a huge safety department to get this right. I have seen two-crane operations run better inspection programs than some big companies. When I was starting out, some suppliers treated my small orders like they did not matter. The ones who took my $200 order seriously are the ones I still trust for larger orders today. Small does not mean unprofessional. In inspection work, a one-person shop can still name one competent person, schedule a qualified inspection, and keep a tracking sheet. The issue is not fleet size; it is whether anyone is responsible.
The gas pump mistake that made me slow down
A similar lesson came from a mistake I almost made in April 2023. A technician said a Sumitomo excavator would not start because the gas pump was bad. My first reaction was to correct him. The excavator has a diesel engine. It does not have a gasoline pump. But I have learned to ask for a photo before I place an order.
It turned out he meant the engine's low-pressure fuel pump. In the shop, gas pump was close enough. The problem is that a vague term on an emergency parts request creates the same risk as a vague inspection report. I would have ordered the wrong part and the machine would have sat idle longer. Since then, my rule is simple: if a part request does not include the brand, model, old part number, or photo, stop and ask. In the last 18 months, that habit has caught 47 potential mismatches before they became invoices.
What a good report should show
If you are trying to decide whether someone did a real crane inspection, do not let a single 'inspected' box end the conversation. Look for the following details:
- The name and qualification of the person who performed the inspection.
- The date of the inspection and the standard or procedure used.
- The scope: what was checked and what areas were not accessible.
- A defect list with parts that need repair or replacement, not just a sign-off.
Paperwork can hide as much as it reveals. Put another way: the best inspection reports describe what was not inspected. That sounds counterintuitive, but it is exactly the honesty you want when a crane is about to lift someone's next paycheck.
Regulations and local rules are the boundary
This answer comes from a parts guy, not from an official training course. It is general guidance, not legal advice. Always verify the current OSHA, ASME, manufacturer, and local code requirements before you create your own checklist.
I also remember sitting in an informal roundtable in New York that someone called the crane club NYC. The host made one point better than I can: before you ask who should inspect a crane in New York, ask what the city requires first. Local rules can add requirements that go beyond the manufacturer's manual. They can also require a different level of inspector. That is a normal part of the job. If someone gets angry when you ask about local rules, consider it a red flag.
At the end of the day, who should inspect a crane? The qualified or competent person with a name, a qualification, a scope, and the authority to stop work. Whether that person works for the manufacturer, an independent firm, or your own team matters less than whether you took the time to verify their work. That is the step I ignored for years. Now it is the first line of my checklist.
