Page 1 of 2 12 LastLast
Results 1 to 10 of 18
  1. #1
    Silver Member
    Join Date
    Nov 2004
    Posts
    149
    Location
    Port Angeles, WA
    Tractor
    Kubota 3130HST w/LA723, HD bucket

    Default Tree Clearing w/KX121-3

    We just bought a lot, and need to clear it. While I've gotten a quote on the job, the thought of renting a kubota KX121-3 is appealing...admittedly for the fun/learning factor, but hopefully to save a little $$ as well.

    However, being a little wet behind the ears - I'm not sure how big of a job I'm getting myself into. I've plenty of seat time in my 3130, so I'm not totally ignorant of machinery. And, I've watched a couple of professionals with a big excavator and dozer clear our last place of significantly larger trees. So, I understand the basics - clear roots to side of tree as needed, then push it over from a point 8-12' up or so. Grab/shake a little to lose the dirt, get it to the burn pile, then level up the mess I just made.

    The main grove of trees are all small alders, and there's probably about 1.5 acres of them or so. I don't think there's anything over 8" - many/most are 4-6". Pic showing most of them:



    Ground is soft, but not muddy. I'm sure these will easily come out with the KX121 - I've actually pushed the smaller ones over with my 3130 bucket with limited success, but was spinning the wheels on the larger ones. What I'm not sure of, are two things.

    - How long will it take? I realize there are many variables and none of you can see the site, but for the price I was quoted by a local guy with a similar Kubota mini - I could rent one and pay all expenses for 5 days. My time is worth nothing. The local, experienced guy said it would take him 1.5 - 2 days at most...so even if it takes me twice as long, I'll come out ahead here.

    - How big a tree can the KX123 can handle? The small alders are 90% of the work - but there are perhaps 10-15 larger cedar/fir trees, mostly in the 10-20" diameter and 60-80' tall. There are a couple that are 24-28" in diameter, but I'm guessing those might be pushing the limits...although again, the ground is quite soft, and roots don't run very deep in this location.

    Any words of wisdom? Just do it and have fun, or....?

  2. #2
    Veteran Member Bob Rooks's Avatar
    Join Date
    Feb 2007
    Posts
    2,381
    Location
    Bothell & Silverdale, WA
    Tractor
    Yuchai Bulldozer

    Default Re: Tree Clearing w/KX121-3

    If it were me (just sayin') I'd rent a CTL with a forestry package and have twice the fun in half the time.
    Yuchai 306R dozer, Mustang 2040 skid steer, Mitsubishi MS035 Mini-Ex with four buckets and a rake, 7' Dual Dozer with dual Trimble GCR-2 laser receivers.

  3. #3
    Platinum Member
    Join Date
    Feb 2002
    Posts
    592
    Location
    Connecticut
    Tractor
    BX2360/ Kubota SVL90-2/ Kobelco 115SR/ Kubota 161-3

    Default Re: Tree Clearing w/KX121-3

    I've done a lot of those size trees with my 161, you just need to be extremely careful that the tree doesn't roll around the side of the bucket and slide down the boom right into the cab the you are sitting in. If you damage a rental machine you may be in the hook for repairs depending on their policy. The rental of a 121 for the week is probably around $1000 for the week so only you can decide if the money is better spent in you doing it or putting it towards someone else doing it. Hopefully the rental machine has a thumb, if it doesn't the job will not be as easy. Hope this helps.
    If it has anything to do with diesel, dirt, and shiny things, I'm interested....

  4. #4
    Gold Member
    Join Date
    Mar 2012
    Posts
    378
    Location
    NSW Australia
    Tractor
    Tractors16-600hp Farm & Earthmoving Equip, Trucks etc.

    Default Re: Tree Clearing w/KX121-3

    Clearing trees (especially something 10-20" dia & 50' or greater ) isn't for the faint hearted or inexperienced - combined that with using a compact excavator of limited reach & you'll be placing yourself a little too close to the "action" for my liking (an excavator in inexperienced hands is also easily damaged, usually on the boom or swing in clearing operations).
    To give an idea of scale below is a photo of our 22T excavator preparing to remove a tree (comparable is size to your larger trees) - the higher the bucket is placed the greater the leverage the "push" will be placed about 1/2 way up this tree. Also with this tree being "springy", as high as possible the branches are in the process of being removed to prevent catapulting "spears" & to aid felling into the narrow slot we had as a drop zone without causing consequential damage to structures on the ground

    With the bulk of your clearing which is smaller trees, as others have recommended a CTL would prove the better/quicker "tool" & is far easier to operate.
    Attached Thumbnails Attached Thumbnails -tbn29012013-jpg  

  5. #5
    Bronze Member
    Join Date
    Oct 2009
    Posts
    97
    Location
    Holland, Michigan

    Default Re: Tree Clearing w/KX121-3

    I think you would be pushing the 121's limits.....that's just me....I have a Mini-X that is slightly smaller than the 121, and I wouldn't touch that job with a mini....something with some reach and power is what you need. I would hit that with my Kobelco SR135 and it's hydraulic thumb...plenty of power and reach to grab, remove and stack with out spending most of your time tracking all over the site.
    Attached Thumbnails Attached Thumbnails -2012-03-16_14-10-17_514-a  
    Last edited by excav8ter; 01-29-2013 at 09:37 PM. Reason: added pic. ..

  6. #6
    Veteran Member
    Join Date
    Jun 2005
    Posts
    1,105
    Location
    Central NH (God's Country)
    Tractor
    1984 Kubota B7200D (Sold 2015,) L39(2005) Kubota RTV 900 (2005), Komatsu PC75UU2E(1997), Mahindra Max28XL Shuttle (2013)

    Default Re: Tree Clearing w/KX121-3

    Either a 12-15 Ton excavator or a large CTL is needed. A KX121 will take weeks / Months to clear that and is dangeously undersized for that job.

  7. #7
    Silver Member
    Join Date
    Jun 2012
    Posts
    138
    Location
    Columbus, MS
    Tractor
    Gehl AL340

    Default

    Down here 6 days rent makes for 2 full weeks of rent time. Clearing 6-10" trees with a 121 isn't a big deal. On the bigger trees, depending on the situation, I would cut them then dig out the stumps assuming this is stuff that you would enjoy.


    While a 13T excavator would make this job a snap, you're not a contractor with time constraints.

    The biggest slow down will be consolidating the material into a burn pile. Assuming ground conditions allowed, I would dig the trees with ex and swing them into the right orientation, then consolidate/forward/pile with a loader of some description.


    With the exception of the fresh pine, this was mainly cleared with a KX121 in 2-3 hours. The biggest we removed whole was maybe 14" dbh, 18" on the stump, give or take.
    -image-3994087240-jpg

    -image-3758814122-jpg

    A day after I lit it.
    -image-3404101736-jpg

  8. #8
    Bronze Member
    Join Date
    Oct 2009
    Posts
    97
    Location
    Holland, Michigan

    Default Re: Tree Clearing w/KX121-3

    A quick video of some clearing i did on Saturday, Feb 9. Lots of Pine trees, tightly grouped in clusters of 2-6 trees coming from basically one stump. Cleared about 130' long by 100' wide.... had to carry them about 130' at the the most to where i stacked them.

    Kobelco 135sr clearing trees. JVC Adixxion POV camera - YouTube

  9. #9
    Veteran Member Rustyiron's Avatar
    Join Date
    Mar 2011
    Posts
    1,670
    Location
    Lakes Region, Maine
    Tractor
    M 9540 Kubota

    Default Re: Tree Clearing w/KX121-3

    I think you are right on track with your plan although a bigger machine is allways better, and your larger trees you describe are deffinetly too big for the 121. I think that the bigger rent for a bigger machine will come close to equal out in the rental time needed but the difference is that you'll be able to get all the trees with the bigger machine (15K-18K class).
    Be sure to get one with a thumb! Also be sure to have some help there. You are going to have tremendous piles of trees in a hurry! Some one with a saw or another machine to move & stack them so you can keep the rented machine working.
    ]We need more people to WORK for a living and less people to VOTE for a living!
    (proven on 11/6/12)

  10. #10
    Veteran Member
    Join Date
    Jul 2005
    Posts
    1,302
    Location
    lower part of Md.
    Tractor
    JD310, ASV RC-100

    Default Re: Tree Clearing w/KX121-3

    I have to agree here. Things can, and do, go very wrong quickly. A simple move of the wrist in the wrong direction can make for a bad day. Pushing a pile of trees, things can roll over the top or side and come right into the operators station. Stuff you never expect can get brought up by the tracks and into the operators area (cable, vines, roots, etc.). Every day, I'm thankful for making it through safe. I posted this awhile back, but it's still fresh in our minds when we're working.
    http://www.tractorbynet.com/forums/c...-accident.html

Page 1 of 2 12 LastLast

Similar Threads

  1. Tree selection when thinning / clearing
    By AlanB in forum Land Clearing Equipment
    Replies: 26
    Last Post: 07-29-2010, 04:38 PM
  2. Grapple project/tree clearing
    By thunderworks in forum Projects
    Replies: 12
    Last Post: 04-06-2009, 02:52 PM
  3. Tree clearing - what does it cost ?
    By G McCall in forum Projects
    Replies: 13
    Last Post: 03-14-2008, 09:48 PM
  4. Ready for brush & tree clearing
    By RADDAD50 in forum Kioti Owning/Operating
    Replies: 3
    Last Post: 06-28-2007, 01:07 PM
  5. Newbie Q on tree clearing
    By Rolando in forum Kubota Owning/Operating
    Replies: 3
    Last Post: 08-25-2004, 11:55 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
© 2014 TractorByNet.com. TractorByNet is a registered trademark of IMC Digital Universe, Inc. Other trademarks on this page are the property of their respective owners.