I feel sorry for his family, losing him in such a preventable accident.
I do not see how that loader could get over the main frame on the dropneck hitch . I have looked at this several times .I really don 't understand this . Must have been a panic stop .
If you look at
Clarksville Now - Accident On Frosty Morn Dr. you can see that the bottom of the counterweight is angled up and the back of the dropneck is angled up as well. My guess is:
1. EDIT: There were ratchet type binders laying on the ground next to the truck/trailer so it appears that the guy who commented on the story saying "I agree, I got my own pictures when there was only 3 cops/fireman there, and there was not a single chain/binder" was missing something
2. Parking brake was not set and/or the trailer deck was slippery (based off of
http://imgsrv.clarksvillenow.com/image/DbLiteGraphic/201301/12107335.jpg?1360567461 which doesn't appear to show any skid marks on the deck)
3. Downhill slope of the road
4. Hard stop for some reason
When he hit the brakes the tractor slid forward till it hit the dropneck, then slid onto the dropneck and into the cab (being guided by its wheels riding on each side of the dropneck).
I would guess that when the loader started sliding on the dropneck it picked up speed (less friction from metal on metal than wood on rubber) and the back wheels on the loader might have come in contact with the drive tires on the truck which would have helped the loader slide forward faster (not sure on that one, I cant tell if the wheels would have cleared each other or not).
15 minutes of chaining the loader down would have most likely prevented this. Driving the loader on in the other direction (ie: bucket first) could have helped even if he didn't chain down. A "headache rack" on the truck might have also slowed the loader down enough that it didn't kill him.
Aaron Z