Has anyone had problems yanking stumps out with an eHydro?

[Deere Dude]

I use HF chain so I am good to go.

 

[beenthere]

I use HF chain so I am good to go.

Meaning that the HF chain fails as soon as you start pulling? No danger of breaking anything on the tractor..

 

[Hay Dude]

Here's an example of a chain snapping back. Incredible Accident: Chain Snaps and Smashes through Windshield, killing the driver! - YouTube

Yeah that痴 unfortunate that they yanked with so much force and speed, used such a long chain and didn稚 drape the chain.
Stupid is as stupid does....

 

[Ford850]

Yeah that痴 unfortunate that they yanked with so much force and speed, used such a long chain and didn稚 drape the chain.
Stupid is as stupid does....

I was curious after reading some of the back and forth on here, and wondered if chain could snap back or does it fall dead to the ground when it breaks. I was surprised to find the video showing an extreme snap back, but I did find some interesting info I hadn't considered. Chain will fall dead to the ground if it breaks without stretching. It's the elastic stretching that makes cable, rope, or chain snap back. If you use proper sized chain and don't exceed it's WWL it should not snap back if it breaks (weak pin, hook, etc) since the links do not stretch under that WWL. Once that limit is exceeded, each link is stretched and if it breaks it can snap back similar to a rope.

 

[radios1]

I use HF chain so I am good to go.

you mean to the Morgue?..

 

[TMGT]

I was curious after reading some of the back and forth on here, and wondered if chain could snap back or does it fall dead to the ground when it breaks. I was surprised to find the video showing an extreme snap back, but I did find some interesting info I hadn't considered. Chain will fall dead to the ground if it breaks without stretching. It's the elastic stretching that makes cable, rope, or chain snap back. If you use proper sized chain and don't exceed it's WWL it should not snap back if it breaks (weak pin, hook, etc) since the links do not stretch under that WWL. Once that limit is exceeded, each link is stretched and if it breaks it can snap back similar to a rope.

Also, a lower grade chain is less likely to have as much stored energy before plastic deformation and will more likely deform rather then snap.

 

[4570Man]

Also, a lower grade chain is less likely to have as much stored energy before plastic deformation and will more likely deform rather then snap.

And a high grade adequate size to start with won’t break to snap back.

 

[Oldpath05]

I really dont know what a JD 3320 hydro transmission has to do with yanking on stump is about, it's either going to get the stump out or spin the tires, that tractor isn't big enough to break a 5/16 tow chain.
Just in case someone in TN really wants to know about hydr trans tractors with some scientific facts, the truth can be found over here at post 135>>>https://www.tractorbynet.com/forums.../391263-hst-vs-gear-transmission-would-7.html

 

[AchingBack]

A very safe alternative to chains and cables. Industrial kinetic recovery rope at work! Yankum Ropes - YouTube

 

[Hay Dude]

Heres the 2 fertilizer trucks that snapped a chain. They got real close to avoid the sling shot affect. When the chain broke, it harmlessly fell to the ground.