By Chris Mc Loone
When arriving at the scene of a vehicle accident involving extrication, we go through a process.
We stretch a handline, disconnect the battery, control fluids, size up the vehicle in question, and determine an action plan for extricating the entrapped people. Before any extrication can begin, we must stabilize the vehicle. We do this so the vehicle doesn't shift with our personnel inside, and this also helps keep the patient inside the vehicle from moving around while we go to work. Light vehicle rescue is pretty straightforward. When we get into rescues involving larger and heavier vehicles, like a loaded cement mixer, for example, properly stabilizing the vehicle becomes more complex and requires a different tool complement to complete this task safely.
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1 Companies make different size struts for different size vehicles. Things like ground contour and material present additional challenges that need to be addressed. The main challenge is keeping crew members safe. (Photo courtesy of Hurst Jaws of Life.) |
Tool Cache
According to Carl Haddon, Fire Apparatus & Emergency Equipment columnist and director of Five Star Fire Training LLC, there are four main tools for heavy vehicle extrication: heavy-duty cribbing; struts; high- and low-pressure air bags; and, most importantly to Haddon, a knowledgeable tow truck operator. "The tow truck guy is often overlooked until it's time to mop up," he says. "These guys know how to stabilize and manipulate heavy vehicles better than we do. The trucks with the Roto booms are a godsend, in my opinion."
Kevin Halstead, director of rescue sales, Hurst Jaws of Life, Air Shore Division, concurs. "You can get creative with a winch or grip hoist, but the main [tools] are going to be heavy struts, pneumatic bags, and the lifting cylinders," he says.
Regarding struts, Tim O'Connell, president, Rescue 42, says, "There are basically three families of struts. There is what I call a heavy rescue strut; those are the 40,000-pound struts. Then there is the intermediate step with a stabilization and lifting strut. They can handle 18,000 pounds. And, then you get into what I call the props, or the lightest class. They are the struts not designed to lift anything. They're really not designed to support strong loads. They're designed to be a supplemental support piece." He adds that when a department says it is going to purchase a heavy rescue strut, it should make sure it purchases "something with a safety factor that has third-party testing and that has a working load capacity sufficient to meet the kind of loads that you're referring to when you say heavy rescue."
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2 Some systems have working load ratings for the struts displayed on the struts. The labels inlcude load capacity when the strut is collapsed all the way up to fully extended, including any extensions that can be added. (Photo courtesy of Paratech, Inc.) |
Must-Haves
Rescue crews perform multiple tasks. Depending on the response, a rescue crew could be performing engine or truck company tasks at a structure fire, high-angle or confined space rescues, vehicle extrication, or other technical rescue functions. With this wide swath of duties, departments outfit rescue vehicles differently. Some might run rescue-pumpers equipped for vehicle extric