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 | Mike
Join Date: Posts: 1 
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1999-11-17 10188
I'm shopping for a backhoe, and wondering how important the type of mounting system is. It seems there's 3 ways to do it: 1) mount directly to brackets on tractor. This is only works with OEM hoes. 2) mount to sub-frame supplied by hoe manufacturer. 3) mount to 3 pt hitch.Bracket mount seems like the best, because the hoe is closer to the tractor, is the most stable?, and doesn't require the sub-frame which precludes use of a mid-mower. However, you are limited to the tractor manufacturer's hoes. Sub-frame mount seems like it the strongest. Hitch mount is the easiest on-off, and maybe the cheapest, but some say that the hitch could get torn-up over time.Any other factors to consider?? Thanks in advance.
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 | lsheaffer
Join Date: Jun 1999 Posts: 1082 Northern Illinois 
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1999-11-17 10194
If the hoe is closer to the tractor it probably would require a swivel seat , because there would not be room for 2 seats. Also being closer on a compact with a roll bar would probably require a taller ROPS, due to lack of head clearance. A frame mount kit does not neccessarily mean that a mid-mower can not be mounted also. One of the first factors to take into consideration is how well built is the tractor & how big of hoe does one want to mount. TO decide what kind of mount to use , one should talk to e dealer to find out , if there is a required or optional frame kit. I'm a Kelley dealer & they make many frame mount kits for compact tractors, plus I'm offering a 20% discount for a limited time. Feel free to contact me at sheaftractor@coiinc.com or 815-284-3226. ....
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| tom
Join Date: Posts: 1
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1999-11-18 10200
Suppose it depends on how much digging you're planning and how much you're
willing to compromise other uses of the tractor.
I don't planning a lot of digging and I like to be able to swap implements
quickly. I went for a 3ph model (Kelley B600). So far a really good machine.
The B600 diggs 6' with a 2' bottom, so if you're doing a 6' trench, you hop and
and off the tractor a lot going from seat to seat. However, it's a small price
to pay for not having a sub frame and consol attached to the tractor.
The Kelley mount uses a plate u-bolted to the draw bar in addition to the hitch
attachments. I think that most of the stress from the hoe is absorbed by the
draw bar and the top link. There's probably little wear and tear on the lift
arms.
There have been threads here and elsewhere dealing with the dangers of 3ph hoes.
The main risk has to do with the hitch unexpectedly raising with somebody in the
operators seat. If the mount isn't properly attached, the operator gets chrushed between the hoe consol and the roll bar.
My hitch activated with me in the tractor seat. I am sure that the Kelley mount does not allow the hoe to raise.
Tom ....
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| Roger L.
Join Date: Jun 1999 Posts: 0
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1999-11-18 10203
I have a three point mount and there is no doubt some form of frame mount is better for digging. The 3 point mounts also do not raise up very high because of the three point limiter that some have refered to. This can make it tricky to get around in rough country. The compromise is to carry the hoe up real high....which means that the legs have to be long-throw types. Frame mounts suffer less from this because they can be closer to the tractor body.
Still, the 3-pt mount beats hand digging by a long shot!
There could be a "perfect backhoe mount". It would be a subframe which is not in the way of anything else and accepts a hoe with sliding fits and pins instead of bolt-up connections. Some of the commercial ones might be close to this standard. ....
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| mark
Join Date: Feb 2002 Posts: 188 Virginia
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1999-11-22 10302
I've been debating the 3pt vs sub-frame issue myself. The one that is most appealing to me is the backhoe mount system on the new 4000 series JD's. Steel plates are permanently mounted to the tractor. The three-point lift arms lift the backhoe onto the plates, were it drops into two slots and is then pinned. The backhoe is now "hard mounted" to the tractor. The three point hitch is only used to lift the hoe on and off the tractor. ....
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| Mark A. Holt
Join Date: Posts: 1
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2000-02-17 12909
This is an interesting thread! Is the model 48 backhoe for the 4500, 4600, 4700 John Deere's a frame mount or a 3-pt? The discription in the catologe says quick tach. How does it attach and just how quick is quick?
What then is the difference between the John Deere 48 and the Kelly 600 or 750 backhoe?
Mark Holt
markh@dedot.com ....
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| Gary Albiston
Join Date: Posts: 1
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2000-02-18 12924
The model 48 backhoe mounts to the rear housing & axel of the tractor with mounting plates. Lifted up by the three point and then pinned into place on the plates. It take very little time to do this and I've had no trouble with it what so ever. I've enjoyed working with the model 48. Hope this helps ....
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| TomG
Join Date: Feb 2002 Posts: 5406 Upper Ottawa Valley 
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2000-02-18 12927
Great. Now the JD and Kelley mount descriptions can go side by side. The Kelley B600 3ph mount is a conventional 3ph type with the addition of two top link arms. The additional arms are attached to the hoe below the top link point and attach to the tractor by a plate mounted on the draw bar.
In operation, the draw bar support takes most of the operating load rather than the lower lift arms. I suppose that the draw bar could fail over long term heavy use, but that seems preferable to stressing the lower lift arms.
The plate must be mounted within 1" of the draw bar support and is bolted through as well as 'U' bolted to the draw bar. Mounting the plate could require drilling a hole in the draw bar, but I was able to use a hole for the draw bar top plate. For safe operation, it is essential that the additional arms are installed and remain correctly adjusted. There are some earlier comments about safety.
Sounds like the JD mount is a good one. However, the JD mount sounds specific to the tractor, while the Kelley mount will work on most 3ph tractors.
....
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| Gary Albiston
Join Date: Posts: 1
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2000-02-18 12934
Your right the John Deere model 48 mount is specific for the tractor and after the 3 pt lifts the backhoe into position and pinned there is no weight on the
3pt at all. I have used it for a year now and I'm glad I went with the 48 hoe. I have it mounted on a 4600 and very please with both. ....
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