Archives for vehicle-extrication
Check this short video out and share with your up and coming extrication tool handlers. Breaking cutter tips is not a new occurrence, but knowing your tools and realizing that when it twists something is going to break…is important. The projectile can be the new hazard to your operation.
Even strong tools like the one in this video will fail if stressed enough.
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The video below demonstrates what happens when you cut the high voltage wire in a hybrid car. Interesting, but don’t do it. Look at the damage to the high dollar Hurst edraulic cutter blades and the total destruction of the sawzal blade.
Below are the warning and screen shot pages from the Moditech Crash Recovery System on the Toyota Prius. Notice the location of the high voltage wire and advisory NOT TO CUT IT.
More on extrication at Boron Extrication
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Yesterday on Facebook we added a picture of a guy wire into a car that a Brother shared. A pretty good conversation about how to deal with these wires took place. If your able scroll back on the FDT Facebook page to check it out.
If the guy wire is in a position that is pinning a patient or slowing extrication, what is your move?
Think about the above question with your crew and then watch the video below from the Washing State Department of Transportation. It provides a pretty good explanation of how these barriers work and how we can deal with them on the scene.
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When I say thinking with muscle I include your cranium muscle. At last nights training we set-up a roll-over pinning scenario and also moved big blocks. It’s not rocket science, but sometimes we could fall into a trap of what is not fastest and safest. That is where the brain muscle comes into play. Very often the safest and fastest technique may be a basic option. Below are serveral pictures from the training and a few thoughts on technique. Additional resources are linked throughout the post so be sure to click on them as well.
With any lift, cribbing and filling voids is important. You’ve probably heard it before but here it is again…If you lift an inch, crib an inch. When lifting we are fighting the effects from gravity and the center of gravity of the object. Use your brain muscle to determine where the force needs to be applied and where the fulcrum gives you the best advantage.
Review Your Cribbing Basics
The trainees recognized that some basic techniques are fastest and safest for this roll-over pinning scenario.
Lifting Big Blocks
Think about a big load pinning a victim. It could be structural in nature, a machine, or whatever. How are you going to move it? In the pictures below you will see the crews lift a 3,500 pound block with simple levers. It takes teamwork, all kinds of muscle, but it is fast and safe. Watch your pinch points and don’t put your body between a rock and a hard place.
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If you have never cut on a school bus, you get to ride along with Austrian FF Bernd Altinger in the videos below. FF Altinger was wearing the Fire Cam from FireVideo.net during the heavy rescue class at the 2013 BGSU State Fire School. We had lots of help with tools in this pit from: TNT Rescue Systems, Milwaukee Tools, Dewalt, Hi-Lift Jack, Paratech, Packexe Smash. Give them a “Like”. We couldn’t do the class without all the support.
Read the wrap-up from the under-ride pit HERE.
Through The Side Windows and Wall (teaching point on the angle of your tool early in the video)
You will see in the video below how easily the blade pops out of the sawzal when it is forced while trying to cut multiple layers of a school bus wall. We also learned that our Austrian Brother Bernd Altinger was a new user of the sawzal. Sounds like he was more familiar with a circular type saw.
One option for steering column displacement on a Type D school bus with hydraulics. More coming soon in a FireRescue article comparing the challenges of Type C and Type D school bus driver entrapment.
Through The Roof
Through The Floor. A challenging and time consuming option.
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Here is a recap of the under-ride pit from the 2013 BGSU State Fire School heavy rescue class. Austrian FF Bernd Altinger wore a Fire Cam from Firevideo.net throughout the week. Special thanks to Howell Rescue Systems for providing tools. Give the links mentioned a “Like”; they are huge supporters of training. More great supporters will be mentioned in coming posts. We couldn’t do the class without them all.
We all have the potential to face an under-ride scenario. Columbus FF JD Vasbinder talks the crew through the steps of gaining access to a pinned driver in the video below. The teaching points are in the video, so be sure to watch with your crew to learn new or review already known techniques.
Side door removal – Rip-N-Blitz
Taking the roof
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After getting home late Sunday night from the Rippin Rescue in Westminster, SC, I was hurrying to the curb with my bags of trash Monday morning just as the garbage truck rolled up. Two days earlier we were finding ways to extricate a victim pinned by a car that rear-ended the truck. I shook my head and thought to myself, self, that is some irony. Anyways, the training in SC was great even with the red mud and rain. We should certainly thank HOWELL RESCUE SYSTEMS for shipping some great tools to use for the two day event. For this post, we are going to summarize a few of the ways to extricate said victim.
Some of the biggest challenges are the equipment you have available. The garbage truck we used in this training had a GVWR of 56,000 pounds. On a rainy day, do you think the truck might be overweight? Real quick before we dive into the techniques, what equipment do you have? How much cribbing? Struts? Airbag lifting capabilities? High-lift jacks? Heavy wreckers in the area? Mutual aid companies with additional equipment and manpower? Remember, technical rescues may require you to adapt and change plans. Think ahead to plans B, C, and D just in case plan A doesn’t work.
Stabilization is always key factor in vehicle crashes and the car vs garbage truck is no different. Immediately chock the wheels of both vehicles. Crib the rear-end of the car as it is most likely lifted from the under-ride. Put wedges along side of the victim between the hood of the car and garbage truck if possible. Crib or use wedges between the garbage truck frame and top of the rear spring.
Next, one easily missed step could be capturing the car’s suspension. If you don’t capture the energy in the front end of the car; the lift you make on the garbage truck will be wasted. That is until you lift beyond the normal resting height of the car’s front end. There are multiple ways to capture the suspension, here are a few: ratchet strap from axle (steel rim) to axel (steel rim), chain from axel to axel (tension with a chain binder), or come-along. Once all these stabilization steps are taken we can get lifting. Once the suspension is captured, you can deflate the car’s front tires if they are not flat already. Be ready to drive wedges further between the car’s hood and garbage truck to gain any gap possible.
One of the options tried was to use airbags on top of the rear tires of the garbage truck. You should be cautious of using this method as you are placing more pressure on the tires. Ultimately, two airbags (13 ton and 20 ton) were not able to get the needed lift, mainly due to the controller relieving pressure on the 13 ton bag because of the load.
Another option was to place the airbag stack under the axel and rear spring. During this rotation the crew was limited to a 20 ton and 13 ton bag. They knew the 13 ton bag wasn’t able to make the lift, so they lifted several inches with the larger bag, cribbed, and reset to lift again. When they were close to freeing the victim, they used a hydraulic spreader to compress the car’s suspension enough to get the victim out.
The next lifting option tried by one of the crews was building a box crib under the center rear frame. They placed two airbags (20 ton & 26 ton) on top of the crib. The lift was quick and cribbers filled the voids as it was made. This was probably the quickest technique. Again, what are your airbags rated capabilities. Can you make this lift?
The last lifting option tried was high-lift jacks on either side of the victim. Be cautious using this technique as the placement of the jacks is critical to prevent slipping. Be sure to fill voids with cribbing and wedges. It should also be noted that this technique is not lifting the garbage truck.
The jacks in the associated picture are rated to just over 4,000 pounds. The suspension of the car is being compressed, thus creating a gap for victim removal. This technique may not work if the under-ride is great and the car’s suspension is already bottomed out.
We also thought to unscrew the bolts holding the rear part of the box (the part that is raised when the truck is being emptied) to the trucks frame and use a high-lift jack on either side to push the piece up and away from the victim. It was possible to move the load, but we stopped due to the nasty water gushing out. We were mostly skeptical that this would be a worthy option in the end.
Share this information with your crew. Preplan for this possible rescue in your area. Most if not all of us have garbage trucks rolling through our jurisdictions.
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By: Paul Hasenmeier
This past weekend several of us had the chance to travel to South Carolina for the 3rd Annual Rippin Rescue class. Retired Westerville (OH) Lt. Phil Burden started the program with a lot of help from local Westminster FD firefighters. We hope to see the Rippin Rescue class grow bigger and better into the future.
JD Vasbinder, Tom Wilcox, and I arrived in SC late Thursday and then spent the day on Friday prepping cars. With any hands-on extrication class it is important to remove gas tanks and batteries. Towards evening on Friday, we helped with an extrication demo/training for the area Explorers. Check out the Seneca Fire Explorers Post 107 page. What are you doing to show the next generation of firefighters the way?
We were up before the sun on Saturday morning and quickly realized it was going to be a wet and muddy day. The pits for the training were: roll-overs, semi-trailer under-rides, semi-tractor extrication, heavy lifting, and garbage truck rear-end pinning.
I mentioned mud earlier and the Westminster public works crews were on it by bringing backhoe buckets of stone to the pits that needed a little more solid ground. The rain ended around noon, just as we broke for lunch that was provided by some local sponsors.
Over the next few days, we will get some more extrication training tips up in a post or two. If you need help getting a Rippin Rescue course going in your area, don’t hesitate to ask for help.
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How do identify and deal with electric vehicles? Ron Moore, Brock Archer, and Tesla Motors have put together a good training (40 minute) video to help with our training. There are more and more of these vehicles hitting the roads and sooner or later you will be first due to one that has crashed. You have to recognize these vehicles because there are real hazards to firefighters. These are not your grandma’s old school grocery getter of years past where we could show up and start whacking metal.
In the video they discuss external and interior identifiers of electric vehicles. Be sure to pay close attention to to some of the points Moore and Archer make. Externally visual identifiers vary per manufacturer. Internally they vary just as much. Remember to use the driver as a resource if they are conscious. Another awesome resource is the Crash Recovery System by Moditech. Some may argue that it takes to long and we don’t have time to use this technology at working extrications. To refute that argument, I say there is a slim chance that any of us can remember all the variations of electric / hybrid technology in all the different manufactured vehicles. Screen shots of the Tesla Model S from the CRS are also below, click them to enlarge. Also be sure to follow BORON EXTRICATION for regular information on vehicles.
One teaching point that is always worth mentioning is to be suspicious of colored cables. Orange has been typically indicated higher voltage, but some manufacturers have also included other colors. Your alertness to an electric or hybrid vehicle should be heightened when found. Ron Moore discusses some of the identifier and cable points in the video.
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See more of the pictures HERE on the FD website. Stabilization is an obvious concern when you roll up to a wreck like this. You will see several heavy wreckers involved in the uprighting of the dump truck.
Santa Rescue Guide
Tomorrow through Friday we will give you a few Santa rescue scenarios to humor you just before the jolly ol’ fella starts his annual flight next week. Included in those posts will be links to numerous training sites that will provide you with hours of material for the coming year.
Below is a great picture from Fire Medic Art to reinforce the care fresh cut Christmas trees need. Be sure to share with your community.
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The driver of a passenger car died after rear-ending a stopped school bus near Tomball, Texas on Wednesday (12-12-12). This under-ride is a potentially challenging one because of the big vehicle on top.
An article and more pictures from the crash can be found HERE.
Read more about a garbage truck under-ride HERE.
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The other day we rode to a hybrid auto class in a 1966 Jeep. Basically, it’s a death trap that includes no roll-over protection, gas tank under the driver’s seat, and lap belts that will keep only your hips from being cut off, rubbed off, or pinned under something during a crash. Technology in vehicles has certainly changed over the years.
Anyways, we had a chance to look at a Honda Civic and Honda Insight after a quick powerpoint presentation about the types of hybrids on the road today. For regular updates about vehicle construction and alternative fueled vehicles check out Boron Extrication. It seems to be a never ending challenge to not only identify alternative fueled vehicles, but also know what’s inside them. The more you read, train with the technology available, and physically examine hybrid cars; the better prepared you will be.
Pretty straight forward look at this hybrid by using Moditech’s Crash Recovery System.
The hybrid Civic exposes rescuers to another challenge. This car has a vertical hybrid battery behind the back seat. In the event of an under-ride how are you going to tunnel? Read on HERE.
Read more about using technology at car crashes HERE.
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The crash shown in the pictures left this Ford Escape in a side presentation with the drivers side down. It was unstable side to side, however the drivers side front tire was buried in the stone providing a starting point for stabilization.
Check out the interior picture of what airbags deployed, both side curtains, but neither frontal airbags. Once the struts were in place the driver was able to self extricate through the back hatch. If the roof needed to be removed, it would have been a simple job. The diagram from the Crash Recovery System shows no high strength materials in the posts that would have been cut. The diagram does show the gas struts for the rear hatchback. (more…)
Over the last few weeks I have had the chance to help Lt. Pete Zimmermann get his new site (www.aircrewextractions.com) up and running. Also, check out AIR CREW EXTRACTIONS ON FACEBOOK. The sites main goal is to give you the best possible information on how to quickly identify what type of aircraft is in front of you, gain access, shut-down aircraft systems, and remove aircrew members during an emergency incident and/or accident in your response area or community. Pete has a bunch of information up already with more to follow. He has coordinated the Ehove Aircraft Rescue Training Expo. EHOVE FIRE ACADEMY ON FACEBOOK.
We took a tour of the Humanetics Innovative Solutions factory, which is the only company worldwide making crash test dummies for the auto industry. These dummies contain an unbelievable amount of technology that provides data about how passengers are affected in various collisions. This technology really helps explain how more people are surviving nasty crashes as compared to years past.
Train, fish, play barbies and repeat has been the order of the last few days. Here are some of the findings, pictures, and video of using a First Responder Jack with our new sleeves on a school bus. We have used the sleeves in several different scenarios now with good results. Check out the previous post here. Our next goals are to get into some more industrial settings and a roof collapse onto the second floor which pins a victim. Please share some thoughts on possible scenarios where this set-up would possibly be useful. We would like to try your ideas. We don’t think the sleeves are an everyday tool, but they may get us out of a bind when a life is on the line.
Some say its to slow, but a little practice, a decent MDT or ipad, and having a general knowledge of vehicles on the road can make you faster and safer on the wreck scene. Michael Smith had an article out yesterday where he talked about avoiding high strength steels when your tools are dated. Read the article here. Are your tools capable of cutting the HSS, UHSS, and boron that Smitty regularly brings to our attention on boronextrication.com?
In Part 1 of this discussion on air chisels we touched on operating hazards, general operating techniques, and a homemade chisel prop. Several videos of training on the prop along with the entire post can be seen here. Again, air chisels seem to be a love them or hat them type of tool, but in many scenarios they can provide a quick means to rescue entrapped victims. In this post we added some more training tips, street-smart techniques, and pictures of possible uses. The list isn’t all inclusive, but at least a start for your training.
Air chisels seem to be a love them or hate them type of tool. In our opinion they can certainly be helpful in a variety of extrication and rescue scenarios. In Part 1 of this post we will take a look at operating hazards, general operating techniques, and a homemade chisel prop to instruct students on how to use the chisel. Several videos are included for review and discussion.
We have been fortunate to train with the Ajax Rescue Kit for the last several weeks. This chisel kit fits both 2216 PSI and 4500 PSI scba bottles. It also comes with a regulator that is adjustable from 0 to 300 PSI so the air pressure can be set appropriately for the material being cut. (more…)
This post is going to hopefully remind you to stay clear of un-deployed airbags when the vehicle sustains damage such as this and touch on new technology that is coming for pedestrians or in this case motorcycle passengers. (more…)
Here’s another basic extrication technique for you to try at your next training. It has everything to do with brake pedal displacement when a victims foot is entrapped. For more on the old school techniques click here.
In many extrication classes the techniques of extricating a victim’s foot from the brake pedal focuses on cutting. The ability to cut the brake pedal is dependent on if you have a hydraulic brake pedal cutter or reciprocating saw and more importantly if you have room for those tools. Remember, you might just need an inch to get the victim out. What is safest and fastest for the victim and the rescuers is key. (more…)
The extrication world has changed over the years in more ways than one. Vehicle construction, tool technology, and an evolution of techniques has created both challenges and advancements for rescue personnel. As you read this post and watch the video below, reflect on some old school techniques that still work, but also embrace technology in the extrication world. (more…)
For this scenario you have a single victim pinned under an overturned vehicle. What is the safest and fastest option to free the victim? For the remainder of the discussion we are going to show the use of a jack. In the picture to the left and video to follow you will see the First Responder Jack in use, another common option is the farm-jack. Add other options in the comments below. (more…)
Andrew Brassard shared this video in an heavy rescue email group. It looks to have bene a very challenging rescue that dates back to 2003 and happened in the Salt Lake City area. The intensity of the scene rises as the video progresses until the extrication of the patient. Check out the video below and tabletop some questions below with your crew. Add any other questions you think to bring up in the comments below.
- Have we done extrication training in full PPE while breathing air?
- Have we done extrication with a hoseline operating overhead?
- What are our foam and water supply capabilities? ARFF resources?
- What stabilization concerns do we have? What are our capabilities? Additional resources?
- Does everyone understand tunneling operations in an under-ride scenario?