tree jack

Looks like a great tool. This past summer/fall my dad and I had to fell a large silver maple spar in a postage stamp of a backyard with no anchors for a mechanical advantage system. We ended up cutting a slot for a bottle neck jack and placing it in there, getting the same effect. This tree jack worked way smoother.
 
I wonder if it ever pops out of the kerf sending the tree back with possibly enough momentum to pop the hinge. Can't beat a pull rope but it has potential.
 
I think that a couple of cheap wedges that fit in your pocket, and won't ruin a chain if you hit 'em would do the same job much cheaper and easier, with the back-up for if one wanted to pop out.

Then you can use the same wedges for bucking the log.

Wouldn't want to try to fit that hydraulic jack in my pocket.

For that application, I'd just as soon use a 20 ton bottle jack that will also jack up a truck, backed up with wedges of course.

My bottle jack was $30-40. Wedges less than $20.
 
I have tozed over some big sticks with some decent wedges like K&H 10" and a 6# falling axe with 36" Handle. A half dozen or so wedges were always in my pack just in case. If it got too rough, I would use the real tree jacks.

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They are the right $3000 tool for the job, indeed. I've gotten to use them a bit, but most tree companies don't have the work to support them, I wouldn't think.
 
You are right Sean. I bought them toward the end of my Timber Falling career when another faller was hard up for money...I got them for $800...could not pass that up! Had always used Company jacks when need before that, and had always wanted my own set. To tell you the truth, I have only used them a couple of times...usually I just install a bull line because I don't trust the holding wood on most residential trees that I work on to hold with jacks.

I definitely agreed with you on wedging.
 
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