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Re: 1940 drawbar safety law?
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Posted by jCarroll on February 22, 2005 at 13:45:22 from (4.225.134.41):
In Reply to: 1940 drawbar safety law? posted by Dave (IL) on February 21, 2005 at 09:03:33:
http://asae.frymulti.com/request2.asp?JID=2&
AID=16007&Abstract=482.htm&CID=s2000&T
=3 This link points to one of the ASAE drawbar
standards for wheeled tractors. It will give you
an idea of what a design standard is; in this
case, location of hitch point with respect to tire
contact. As an Ag Engr graduate 40 years ago, I will tell
you that overturning by pulling on a properly
positioned drawbar doesn't happen. As the
front of the tractor rises, the overturning
moment decreases, and the tipping action
ceases. This is NOT the case of a plow
snagging a stone where momentum is the
principle force. I know this bothers your sense
of intuition, but only hitch to a properly
positioned drawbar, and you'll be OK.
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