3 pth backhoe: Kubota Review  -- Kubota Tractors Discussion Forum and Review 3 pth backhoe: Kubota Review -- Kubota Tractors Discussion Forum

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 12-18-2004, 05:41 Post: 102467
grinder

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 3 pth backhoe

I am considering a 3pth backhoe for my 2003 7500 hydro.
I have not looked at size or brand.
Talking to the service manager at my recent 50 hr service,
I got the impression they are hard on the tractor. As
opposed to a subframed unit. I mostly mow with a MMM 60"
and blow snow. But have some digging I would like to be able to do.
Any comments would be welcome.






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 12-18-2004, 06:35 Post: 102470
hardwood

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 3 pth backhoe

Grinder; I've never owned a 3pt. hoe, but when I went hoe shopping it was hard to find anyone who had owned one or a dealer selling both frame mount or 3pt. that would recommend one over a frame mount unit. Everyone echoed your service managers comment that the 3pt. just wasn't meant to handle that much twisting and overall strain. I've been real happy with my #48 Deere subframe unit, no problems so far. Have a peacefull holiday season. Frank.






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 12-18-2004, 07:26 Post: 102472
Art White



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 3 pth backhoe

Grinder, this might be a good time to switch up on packages and take advantage of the lower interest rates on new tractors. I say this as Kubota as a full tractor mounted subframe for it's new backhoe on that size tractor. It's a BH75 and it uses the same style hook-up as the BH90 and there commercial machines. I think you would be impressed with it as there is no sacrifice of ground clearance with this machine as with other makes and they are quick and easy to install.






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 12-18-2004, 15:40 Post: 102485
grinder

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 3 pth backhoe

I'm not familiar with that tractor, what about mowing and blowing?
Same to you and yours Frank.






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 12-18-2004, 21:09 Post: 102500
Art White



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 3 pth backhoe

The best intro work that I've seen is at http://www.deenimplement.com/ They are toally capable of all the chores to the best of my knowledge.






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 12-19-2004, 21:22 Post: 102569
beagle

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 3 pth backhoe

Art, I've looked at a used B4672 hoe for my 7800 but it didn't have a sub-frame. I'm a little confused. Should this hoe have a sub-frame for the 7800, or isn't it compatable at all.

When you look at the simple statics, a hoe could put some serious forces on the top link bracket if used on a 3-pt hitch. Just 250lbs. of vertical load 6' from the 3-pt would induce a 1000lb horizontal reaction at the top link, and a 1500ft-lb moment between the top link at lift arm pins. This doesn't seem like a healthy way to treat the tractor.

I would definitely stay with a subframe mount for a compact tractor. It would seem that type of moment should be distributed across the tractor though a stiffened frame, and not induced at the 3-pt.






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 12-20-2004, 06:47 Post: 102581
Art White



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Beagle, that is the factory hoe for that tractor! They have worked just fine on them for years and had no problems. They will from time to time get a little loose unlike the four point hoe package they offer now but they do work and do it well for there size. Kubota tractors like your B-7800 are unique in there design to the compact tractors as they run a full frame like the big farm tractors do so unlike many of there counterparts. This helps spread the stress from one end of the tractor to the other so they don't break in half at the clutch housings. I have listened to many of the lower subframe people that found they reduce the flexibility of the tractors as well as ground clearance and I've seen the problems with them. It was interesting that a BX23 has more ground clearance then many full compacts with the subframe hoes!! If you are just looking to do some digging on your own I'd say you'd be okay with that unit but if it's tough then maybe you'd want more as I do like the full frame hoes they are offering now on all sizes of the Kubota compacts.






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 12-20-2004, 07:30 Post: 102585
beagle

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Thanks for the info Art. I have been looking for a missing sub-frame. As long as the top link bracket can take that kind of abuse, I won't keep looking for a sub-frame that doesn't exist. Thanks again.






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 01-26-2005, 07:06 Post: 104941
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 3 pth backhoe

I have owned a kubota 3710 tlb for a number of years now and the three point hitch hoe is quite tough on the toplink mount. I've redrilled the bolt holes and taped the sizes larger for the bolts. I also welded tabs on each side of the mount area at the top to take some of the stress off the bolts. MY OPINION?? if you can afford the frame mount unit, by all means, buy that model. Also, I personally don't think the pto mounted pump for this hoe is any near as powerfull as the internal system that you'll get with the frame mount. May I add, that it seems that the steel used in this unit is VERY soft and doesn't stand up to what's needed for the usage. Hope this helps Larry






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 01-26-2005, 08:56 Post: 104951
denwood



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 3 pth backhoe

I also owned a 3 point mount hoe, ARPS 80. I got it used from a man who dug most of the foundation for his house and his in ground pool with it mounted on a Ford 1920. The Ford suffered no ill effects from a good bit of use. One thing important to keep in mind is size. If properly matched to the tractor and not oversized, it will be much less likely to do damage. I also agree that my pump seemed low in power, not speed compared to other hoes. The pressure did check out for the pump. It may have been in the valve relief setting.






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Discussion Boards > Active Subjects > Messages as Posted > Kubota Review Forum

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