stump speech

[JoelD]

great post and thanks for the video.

Looks to be fairly shallow rooted. I have a bunch of oaks and the like, and man, getting them out of my rocky soil is agony.

I'd be interested to see what kind of pressure it would take to pull mine out.

I've had to resort to a 25K excavator, it makes short work of the stumps.

Looks like you've got a serious pull though, some of those roots are thick and to rip them out must take some force.

Joel

 

[Dead Horse]

Well if nothing let go, your rigging job is prolly ok. Your tractor likely maxes out at 2,700 psi for the hyd pump, so you put everything into it you have.....

 

[jake98]

Well if nothing let go, your rigging job is prolly ok. Your tractor likely maxes out at 2,700 psi for the hyd pump, so you put everything into it you have.....

Whatever the high pressure reading was, I took it before I was pulling the stump, with the cylinder all the way out. When the stump was comming out I was juggling the valve, camera, thoughts of decapitation.., so I didn't really get to see what the gauge said, other than trying for a couple seconds to keep it at 1000. (it stayed over that when I let off the lever) There may be some more left. The chains were really tight.
I guess with the frost heading in the stump pulling season is about over. I have about 4 trees leaning toward the shop that need to go, so I'm thinking about how to rig it up for that. Maybe use a straight trunk and multi-ropes as a lever to keep the tractor and cylinder out of the crash zone.

 

[newbury]

Does anyone have another source for relatively inexpensive cylinders?

When I checked baileynet.com yesterday they had one or some surplus like the OP is using, for the $149. Now they are out and the new cylinders are around $220 plus.

 

[Dead Horse]

I guess with the frost heading in the stump pulling season is about over. I have about 4 trees leaning toward the shop that need to go, so I'm thinking about how to rig it up for that. Maybe use a straight trunk and multi-ropes as a lever to keep the tractor and cylinder out of the crash zone.

Now think that through carefully!!!!!!!!!! felling trees is a whole different can o worms!

Personally, I don't think your rig has the "throw" to use it for that purpose as, if you find you have to pull the tree a few more inches when you have maxed out the throw of the cylinder, you up a creek with not much paddle!

I have a BIG logging winch and I admit I have pulled the stunt you are speaking of.......

The differences are 1)I can rig the winch far enough away from the tree (and at a 90 degree angle from the pull, by chaining a slider to an anchor tree) so no matter what happens, the tree CANNOT fall on the tractor.

2) also, the "throw" is more than sufficient to pull the tree completely over once I start pulling on it. IE; all the cable can be winched in, say several 10's of yards of it, such that once I start pulling, the tree IS coming down, or at least I can lock the winch such that I don't worry about it going the other way.......

I had a "leaner" threatening the house....... It was a big s.o.b. and it had to come down, (but it was NOT leaning more than a few degrees) I wrapped a choker around the tree as high up as I could reach standing on a step ladder (for max leverage). I pulled the winch cable tight and locked the winch. At that point the tree was already wanting to go the direction of the pull.

I snuck up to it and cut a pretty good wedge.... then put more tension on the winch cable. I snuck up to it again and started cutting its back..... left a good hinge on it after watching the back side cut begin to pull apart. Nipped at it a bit more and then gave it all the winch had....... down like several ton of bricks.......

I don't recommend this level of stupidity at all, but I had limited choice and I got away with it. I doubt I would try it with your rig.

There is a thread here about a guy dropping a tree on his Kubota........ it wern't pretty!

 

[J_J]

jake98,

I really can't see the reason to regulate the pressure. The resistance of the stump will dictate the pressure, and it may take it up to your relief pressure. If you should hear the relief kicking in, then just change your pull direction.

 

[Dead Horse]

Agreed, ole Jake is "over" thinking the pressure thing. Unless the cylinder is rated less than the tractor's relief valve limit, just let er rip..... Tractor will tell ya when she is giving all she has........

 

[jake98]

that was just so I could use single chain, but after feeling how tight they were I was glad there were two of them on there. Don't have much experience snapping chains but I bet 1/2" grade 70 isn't where I want to start.
As for getting the trees to lean I'm going back and forth between trying to yank the stump halfway, or using a lever to increase my draw length, and going with like four 1" ropes up high. I know what you mean about 'almost' getting it to lean the right way. One is going to be tough. I'll save that one for last.

 

[Dead Horse]

Well, be REAL careful cutting any tree with spring tension built in......... Guys been killed doing that, when the tree splits vertically and throws the saw into them or worse, snaps their head off quicker than Bill Murry with a 9 iron.

 

[foggy1111]

Remind me again....what was the purpose of PULLING these stumps? (those little ones could be ground out in about 10 minutes....or YOU could use your large grapple :laughing: )