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Such a thing as too much machine.
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<blockquote data-quote="MARKMAC" data-source="post: 132101" data-attributes="member: 24357"><p>Sage advise. I've learned the "Say No" part the hard way. Neighbors routinely ask me to dig holes (graves) for dead animals. My little tractor isn't heavy enough or powerful enough to dig.</p><p></p><p>I was dragging a neighbor's small tractor back to their house after their wheel fell off, when my own tractor's wheel fell off. Just like that, two tangled tractors missing wheels in the street. The neighbor felt bad, but when I looked at the fracture surface I could see the shaft had been fatigue cracking for decades and there was only a little bit of the original cross-section remaining when the crack turned into a fracture and the shaft separated. So it would've busted the next time I used it regardless.</p><p></p><p>I included a picture because I find it fascinating. I used to to failure analysis on gas turbine engine components. The smooth area is all pre-existing low cycle fatigue (LCF) crack. Likely spanning many years, a tiny crack grew microscopically as the tire made each rotation. The rough oval part off-center is stress "overload" fracture because the tiny area was all that was left carrying the load.</p><p></p><p>Back on topic, I'm leaning towards adopting the skid steer. My father-in-law was like a samurai with that thing, so I know it's very capable of precision work despite it's size.</p></blockquote><p></p>
[QUOTE="MARKMAC, post: 132101, member: 24357"] Sage advise. I’ve learned the “Say No” part the hard way. Neighbors routinely ask me to dig holes (graves) for dead animals. My little tractor isn’t heavy enough or powerful enough to dig. I was dragging a neighbor’s small tractor back to their house after their wheel fell off, when my own tractor’s wheel fell off. Just like that, two tangled tractors missing wheels in the street. The neighbor felt bad, but when I looked at the fracture surface I could see the shaft had been fatigue cracking for decades and there was only a little bit of the original cross-section remaining when the crack turned into a fracture and the shaft separated. So it would’ve busted the next time I used it regardless. I included a picture because I find it fascinating. I used to to failure analysis on gas turbine engine components. The smooth area is all pre-existing low cycle fatigue (LCF) crack. Likely spanning many years, a tiny crack grew microscopically as the tire made each rotation. The rough oval part off-center is stress “overload” fracture because the tiny area was all that was left carrying the load. Back on topic, I’m leaning towards adopting the skid steer. My father-in-law was like a samurai with that thing, so I know it’s very capable of precision work despite it’s size. [/QUOTE]
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Such a thing as too much machine.
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