The Twenty-One Point Inspection Of A Crane: How Much Do You Know?

Construction & Contractors Blog

Anything with an engine that lifts and carries literal tons (e.g., boom cranes or crawler cranes) from one area to another and from ground level to sky level should be inspected daily, weekly, and/or at the very least, monthly. Are you familiar with the "21-point" inspection of a crane? If not, the following highlights everything that is inspected on a crane.

The Boom Arm, Boom Arm Extensions (up to Five), Wrecking Ball, and Electromagnet Attachments

The boom arm at the front of the crane, as well as any boom arm extensions, all have to be inspected. Without the boom arm and its extensions, a crane could not do what a crane is supposed to do; lift and move really heavy objects. If you also use your crane for demolition or to pick up metal using a big electromagnet, these attachments must each be affixed to the crane, tested, and checked for issues.

The Control Panel, Levers, Buttons, Steering Wheel, Brakes, and Gas and Clutch Pedals

The control panel in a crane is where the entire machine is controlled by a single driver and where the machine receives its instructions on how to move and what to do. Any lever or button on this panel has to check out, too. The steering wheel is closely examined and tested, as are the brakes, gas pedal, and clutch pedal to ensure that everything the driver touches and controls is in good working order.

Wheels or Tracks

Most boom cranes are crawlers. It means that they have crawler tracks for going over any type of ground or surface while in operation. Crawler tracks are known to break if something gets jammed in them pretty good. The tracks, as well as the hubs over which the tracks are turning, all have to be inspected to prevent serious injury. If your crane is not a crawler, then it has wheels that need inspection and possibly better inflation so that there is not a tire blowout in the midst of lifting six tons ninety feet into the air. 


Lots of parts in the engine all need to pass inspection. Without the engine, everything about a crane fails. When a crane fails to work as expected, accidents happen. Accidents involving a crane usually kill people or injure people so badly that it takes a long time to recover. By conducting regular crane inspections, you can prevent serious injuries and deaths. This is the goal of OSHA, the Occupational Safety and Health Administration, which regulates all machinery and equipment inspections to ensure that employees will be safe at work.


25 September 2019

Home Repair Tips for the Novice

When I bought my first home, I was terribly inexperienced when it came to maintaining it. It seemed as if something was always broken. After spending a weekend battling with my oven, I decided that I enough was enough. I started reading everything I could about things related to the home. By the end of my research, I still could not fix my plumbing, but I could look knowledgeable as the plumber explained what was wrong. In an effort to help others avoid the tedious task of reading book after book about plumbing and appliance repairs, I started this blog. Hopefully, this information will save someone from a weekend spent wrestling with their own appliances.