Unsafe New Stabilization Technique
I was recently observing an extrication class where the group was being shown ways to stabilize a roof-resting vehicle. The salesman/instructor showed the class how to use two struts along with chain and a chain cluster to secure the rear of the vehicle.
When I do this, I run a loop of chain around the end of the vehicle and then have the struts sort of lift the loop of chain to stabilize the vehicle. Well, not this time. The salesman/instructor showed the class that they should take a chain cluster kit and use the chain 'T' attachment end. He inserted the 'T' into the hole in the frame of the vehicle and then lifted with the struts to tighten and stabilize the vehicle. Or did he?
I have never seen anyone use those frame holes for essentially lifting a vehicle. They are designed for securing a new vehicle onto a car carrier when it is being transported to the new car dealership.
What I saw with this technique was that the metal at this hole in the frame bent and actually began to show failure. If the metal at this frame opening opens up and releases the chain cluster, then the strut would fail.
I do not agree with this technique and feel it should be shutdown right here and now. A loop of chain or a complete securing of the chain to the vehicle frame will be far superior to using the frame hole in this fashion.
Here's a shot of one of the struts on one side of the roof-resting vehicle to better explain what I'm talking about. It's NOT safe. It's NOT secure. It should NOT be a technique that we use or teach!