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Motor City Monday Extrication Tip; Key-less Vehicles

One of the fastest and easiest methods for securing the power on a vehicle is turning off the ignition and removing the key. However, more vehicles now have key-less ignitions

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Key-less Vehicles

start-stop-systems-extricationjpgOne of the fastest and easiest methods for securing the power on a vehicle is turning off the ignition and removing the key.  However, more vehicles now have key-less ignitions that work with a key fob and “Power” button. For this type of vehicle, the best method for HV Shutdown Push and hold the POWER button for 3 seconds. This simple action turns off the gasoline engine and immediately shuts down the high-voltage system controllers, thereby preventing current flow into the cables. It also cuts power to the airbags and the seat belt tensioners, though these pyrotechnic devices have up to a 3-minute deactivation time. To prevent accidental restarting, you must either remove the key-less remote from the vehicle and move it at least 20 feet away or cut/disconnect the 12-volt negative battery cable.

Kitchen Table Sharing

Even the tech savoy extrication experts cannot keep up with every new vehicle technology that the automakers are using.  Always share information you know about different vehicles that you have driven on vacation or a friends vehicle.   I learned about the 2015 Chevrolet Malibu and the Auxiliary Power Supply located in the truck during a vacation last year. Take a few pictures and researched more about it and wrote this post on Boron Extrication.

Knowledge is only Powerful if you share it.

Mike Smith, Absolute Rescue's Editor in Chief, is a veteran of the fire/rescue service in Michigan, who also works in the automotive industry as a designer. Have an idea of suggestion for the site? Contact Mike here

Quick Tips

Stabilization and Electric Vehicles

The battery weight and location are important considerations for stabilization.

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One of the fastest methods of initial stabilization is to immobilize the vehicle by turning the 12-volt system OFF.  Securing the ignition is accomplished by obtaining the key fob or keys and put them in a rescue apparatus Furthest away from the scene.  Another quick, initial stabilization option are wheel chocks.

Chocks used during fire pumping operation are an excellent option. However, often a line is stretched off the apparatus and the engineer used the chocks on the apparatus.  Many extrication teams use two wheel chicks tied together with a rope.  Turtle Plastics has chicks that are lightweight and easy to deploy.

Stabilize the vehicle with cribbing, by removing air from the tires, or utilize the Lift Airbag Equipment for rescue.

Wheel chocks must match the size of the tires on the vehicle and used in pairs Tire size is designed to be proportional to the vehicle’s weight and size.

Three main factors affect the performance of wheel chocks:

  • The angle of the road surface, called slope or grade. Parking on an angle greater than 10 degrees increases the risk of the car rolling off or over the chock.
  • The size (height) of the wheel chock compared to the wheel height. Extra large wheel chocks are suitable for e.g. parked air craft where wind forces may come into effect.
  • The surface slip or friction of the road surface, as the wheel chock may slide downhill due to wet grass or ice. Increasing the size of the wheel chock will not necessary allow the parking on inclines greater than 30% gradient (16.6 degrees).
  • Keep in mind, the vehicle most likely will require full stabilization which should include cribbing and struts where necessary. Vehicles like a side resting vehicle or roof resting require struts to stabilize.

 

2017-qx60-hybrid-extrication-paratech

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Quick Tips

TECH TIP: Shorten the Strap

Often on side resting vehicles, once a strut is placed the fixed end of the ratchet strap is too long to tighten the strut.

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Ratchet Strap Handle

Often on side resting vehicles, once a strut is placed the fixed end of the ratchet strap is too long to tighten the strut. First off, if you are using a cluster hook set, use the smallest hook possible. Secondly, if possible use the hook on the fixed end of the ratchet strap. Finally, you can gain approximately 6 inches of space by folding the fixed end strap in half and attaching the hook on the handle as shown in the picture below.Rachet-Strap-Webbing-Handle-Side

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Quick Tips

Never saddle a dead horse!

The Associated Wire Rope Fabricators, INC Facebook is a great page for tech rescue personnel to follow. Below is a image that was posted on their Facebook page under the title “Never saddle a dead horse!”. The image explains how

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Never saddle a dead horse!

The Associated Wire Rope Fabricators, INC Facebook is a great page for tech rescue personnel to follow.  Below is a image that was posted on their Facebook page under the title “Never saddle a dead horse!”.  The image explains how U-Bolt Saddle Clamps should be used on wire rope.

Associated Wire Rope Fabricators

 

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