I have the opportunity to purchase a model 7 backhoe attachment at an unbelievably good price. I have a 2004 4310 and my dealer indicated the model 7 would not fit the 4310. I can remake/modify the mounting brackets and would have to add the hydraulic connection (third CVS) but is there anything else that would stop me from making it work. There maybe design differences that I don't know about or problems that will be encountered. There is so much knowledge on this web site, I know someone has the pro's & con's on making it work.
Backhoe Model 7 Backhoe on 4310
- Thread starter mpr
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RoyJackson
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The number 7 hoe is used on the 790 Tractor. Horsepower is greater on the 4310, but not that much. Hydraulic flow rate on the 4310 is considerably greater then the flow rate on the 790, so you might need a restricter.
As far as mounting the 'hoe...suggest you run down to your local Deere dealer and look at the 790's and 4310's to compare dimensions.
I cannot say I've looked at either tractor for this reason, but I think your dealer is right...won't fit unless you're ready to make some brackets and such. I don't think you'll want to do any drilling in any components of your tractor though.
As far as mounting the 'hoe...suggest you run down to your local Deere dealer and look at the 790's and 4310's to compare dimensions.
I cannot say I've looked at either tractor for this reason, but I think your dealer is right...won't fit unless you're ready to make some brackets and such. I don't think you'll want to do any drilling in any components of your tractor though.
dicker
Silver Member
Hi
I have a 4310 with a 48 backhoe.
I am not sure about the bracket requirements you will need on the 7 hoe, but you will need a power beyond kit for the hydraulics, not a third scv.
Good luck
Richard
I have a 4310 with a 48 backhoe.
I am not sure about the bracket requirements you will need on the 7 hoe, but you will need a power beyond kit for the hydraulics, not a third scv.
Good luck
Richard
RobS
Super Member
The mounting of the 7 is entirely different than the 47/48. The 7 has a subframe that extends forward, under the tractor to about the front of the back tires. The 47/48 have very short plates that hook to the rear of the tractor above the lower tph arms. The subframe on the 7 is a bolt on piece so it is possible you could fabricate a bracket to simulate the 47 arrangement. You'll still need the tractor side brackets.
On top of all that, the 7 is smaller than the 47. If it were me, I'd go for the 47/48. If the 7 you are looking at is a great deal, buy it, sell it and use the proceeds towards a 47/48.
I can provide pictures and/or scans from the manual on the 7 if you want /forums/images/graemlins/smile.gif
On top of all that, the 7 is smaller than the 47. If it were me, I'd go for the 47/48. If the 7 you are looking at is a great deal, buy it, sell it and use the proceeds towards a 47/48.
I can provide pictures and/or scans from the manual on the 7 if you want /forums/images/graemlins/smile.gif
rockyridgefarm
Elite Member
Rob is right on. And I don't think that is a good enough deal to put on a 2004 4310... You might get it on there, but what do you do if it breaks the tractor?
OK, if you do just be sure and over engineer the subframe.
OK, if you do just be sure and over engineer the subframe.
BigEddy
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I have a 7 on an 855. There are 2 brackets mounted to the rear of the tractor, and 2 hangers bolted to a square tube that supports the loader.
The Subframe mounts to those 4 points, and pins on. The subframe itself is a bolt on attachment to the main hoe, and could be easily removed and replaced with one custom built to fit your tractor.
If you had the right points on the 4310 to mount some brackets, and you were handy at fabricating, I'm sure you could make it work okay, and it's probably something that I would attempt - but it could easily turn into a major job.
I guess for me it would depend on what a really good deal was, and how that plus the time and cost to fabricate something balanced out with the cost of a 47/48 and my immediate needs for a hoe.
Be aware that the 47/48 both have significantly improved performance over the 7 hoe.
Look on JDParts for a better understanding of the parts and the layout.
The Subframe mounts to those 4 points, and pins on. The subframe itself is a bolt on attachment to the main hoe, and could be easily removed and replaced with one custom built to fit your tractor.
If you had the right points on the 4310 to mount some brackets, and you were handy at fabricating, I'm sure you could make it work okay, and it's probably something that I would attempt - but it could easily turn into a major job.
I guess for me it would depend on what a really good deal was, and how that plus the time and cost to fabricate something balanced out with the cost of a 47/48 and my immediate needs for a hoe.
Be aware that the 47/48 both have significantly improved performance over the 7 hoe.
Look on JDParts for a better understanding of the parts and the layout.
JeffSpencer
Bronze Member
If I may tweak the subject just a bit...Has anybody had any trouble with the hydraulic hoses on the 47/48 backhoe? I have a 2004 47 mounted on my 4200. I have had two hose burst while doing what I would consider normal digging/work. The first one burst inside the boom, the second burst right by the outrigger and was the hose for the outrigger. I know for sure it was not from the hose being pinched or rubbed.
Any thoughts?
Any thoughts?
RobS
Super Member
Are the hoses being stretched at one extreme or the other? Where did they burst? Any evidence of cuts/abrasion etc. at the burst location. Could have been a defect from manufacturing/assembly if you don't think it's anything in the operation of the machine /forums/images/graemlins/smile.gif
JeffSpencer
Bronze Member
No, the hoses aren't being stretched or anything like that. Both burst were right in the middle of the hoses, with no rubs or cuts. The replacements hoses I used seemed to be of much better quality. I'm wondering if Deere is using sub-quality hoses. /forums/images/graemlins/mad.gif
dicker
Silver Member
Hi
Did the hose break at the fitting or just in the middle somewhere?
The reason I ask, is that in my incompetence, I dropped a stump on the outrigger when the hoe was exactly 2 hours old and broke the hose right at the fitting into the outrigger. The replacement hose that was made up at the local Case dealer looks like it has a much superior fitting. Other than that, I now have 200 plus hours on the hoe and no other hose problems.
Other than the fact I bent the bucket hydraulic cylinder, all is well with the 48 hoe.
Richard
Did the hose break at the fitting or just in the middle somewhere?
The reason I ask, is that in my incompetence, I dropped a stump on the outrigger when the hoe was exactly 2 hours old and broke the hose right at the fitting into the outrigger. The replacement hose that was made up at the local Case dealer looks like it has a much superior fitting. Other than that, I now have 200 plus hours on the hoe and no other hose problems.
Other than the fact I bent the bucket hydraulic cylinder, all is well with the 48 hoe.
Richard
JeffSpencer
Bronze Member
Oddly enough, none of the hoses broke at the fittings. The all broke in the middle.
I can buy the model 7 for $1500 and it would be only used occasionally around the farm. I just though it would be a nice addition to have around. I have the fabrication shop & skills but it may turn out to be more hassle than it's worth.
Thanks for the info.
Thanks for the info.
RobS
Super Member
<font color="blue">I can buy the model 7 for $1500 </font>
That's a huge deal, assuming it's in decent shape! I'd buy it and put it on ebay. I paid a little over $4K for mine, lightly used. Does it come with tractor side brackets?
/forums/images/graemlins/smile.gif
That's a huge deal, assuming it's in decent shape! I'd buy it and put it on ebay. I paid a little over $4K for mine, lightly used. Does it come with tractor side brackets?
/forums/images/graemlins/smile.gif
BigEddy
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Well - if you decide to give it a go, I'd be happy to take some detailed pictures of my 7 hoe, the brackets and mount points, and how it attaches to the 855 and send them to you if it will help at all. But for pictures of the hoe you will need to wait until some of the snow melts off it.
JeffSpencer
Bronze Member
I would buy that backhoe for that price. Especially with BigEddy's offer to send you the mounting details. I paid close to $6,000 for my 47 new. Make sure you mount it so it is not a hassle to put on and take off.
JerryG
Super Member
<font color="blue"> I can buy the model 7 for $1500 </font>
For a price like that, even if you had to pay someone else to flab. the sub-frame up, you would be money ahead to buy it.
For a price like that, even if you had to pay someone else to flab. the sub-frame up, you would be money ahead to buy it.
RobS
Super Member
There are two hoses, pressure and return. They plumb into the DSCV for the FEL. It's Deere's "Power Beyond" kit which I installed myself. The kit comes with three pipes but you only use two depending on whether or not you've got the DSCV.
It's basically pass through hydraulic flow. In fact, when the hoe isn't hooked up you have to connect the power beyond back to itself to complete the circuit.
The hoe manual doesn't show much on the tractor connections. That's covered in the tractor literature. Here's a picture from the Deere on-line parts catalog.
Hope this helps, if not ask more. I can take some photos too if you want /forums/images/graemlins/smile.gif
Oops, just realized I linked to the 790 Power Beyond picture as that's what I've got. If you nose around the same area on the Deere parts site you'll find the Power Beyond for the 4310. Enter 4310 under "model search" then look under hydraulics. You may also find the hoe mounting brackets for the 4310/47 by looking at the 47 backhoe parts /forums/images/graemlins/smile.gif
It's basically pass through hydraulic flow. In fact, when the hoe isn't hooked up you have to connect the power beyond back to itself to complete the circuit.
The hoe manual doesn't show much on the tractor connections. That's covered in the tractor literature. Here's a picture from the Deere on-line parts catalog.
Hope this helps, if not ask more. I can take some photos too if you want /forums/images/graemlins/smile.gif
Oops, just realized I linked to the 790 Power Beyond picture as that's what I've got. If you nose around the same area on the Deere parts site you'll find the Power Beyond for the 4310. Enter 4310 under "model search" then look under hydraulics. You may also find the hoe mounting brackets for the 4310/47 by looking at the 47 backhoe parts /forums/images/graemlins/smile.gif
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