Backhoe Going to buy a #7 backhoe

[general1000]

I have my late dads JD 750 that we have had forever and I have always wanted a backhoe for it. The Bush Hog front end loader has seen a lot of use over the years.

I found a #7 backhoe that looks to be in great shape. Thing is it is coming off of a 955 tractor. So is it going to be hard to find a subframe? Or should I just fab up something since I am a 45 old year machinist?

Below is my 750 and the backhoe I am buying.

 

[bullbreaker]

:welcome: to TBN ! ...................

 

[fried1765]

I have my late dads JD 750 that we have had forever and I have always wanted a backhoe for it. The Bush Hog front end loader has seen a lot of use over the years.

I found a #7 backhoe that looks to be in great shape. Thing is it is coming off of a 955 tractor. So is it going to be hard to find a subframe? Or should I just fab up something since I am a 45 old year machinist?

Below is my 750 and the backhoe I am buying.

Since you obviously do have the technical skills, I would definitely suggest that you make your own sub frame.
I think it would be VERY difficult to find a sub frame already made for your tractor, since others are ALWAYS looking for such things.
Perhaps you could get some factory built sub frame diagrams, or pictures before you begin.
That is a BEAUTIFUL clean looking little hoe!!

DO NOT BE TEMPTED TO EXPERIMENT WITH THAT HOE ON YOUR 3PT. HITCH!!

 

[rScotty]

Great little tractor and backhoe. I used several hoes that size on little tractors over a 20 year period. I did use them on the 3 pt successfully, but was always careful and had no problem. On the 3pt, I only used them for digging in the dirt; no roots, stumps, or stones.
However, you will get much better service from it if you use a subframe. I'd suspect that subframes for the JD750 are still in stock. They should be. It is a fine little tractor...wish I had one. And there were a ton of them made - sold both by JD and the similar models by Yanmar. So there should be subframes out there.

Be very careful when you hook it up to the 3pt to disable the tractor's draft control if it has it. It probably does; the similar size Yanmar does. And also be sure to hook up and adjust the positive stop on the mounting arms that is supposed to prevent the 3pt from rising up and smashing you between the backhoe seat and the back of the tractor. That particular defect in 3pt backhoes has killed a lot of good people with those 3pt backhoes before they made a design change mandatory. Be very careful with that. For years there was a memorial picture of a teen-ager killed that way at my JD dealer.
And in spite of knowing about it, it happened to me one day when I had the little 3pt hoe hooked up to the 3pt on our farm tractor. I happened to put down pressure on the backhoe bucket and that tripped the draft control. The 3pt arms sheared the stops on the backhoe mounting arms and the whole backhoe jerked up into the air so violently I couldn't figure out what was happening. Only had about one second to react, but luckily just barely bailed out the side in time and fell to the ground...... Shaking... The backhoe seat was crushed flat against the back of the tractor. Don't do that....

Of course if you use a subframe none of this will happen and the backhoe has several times more usable power.
rScotty

 

[Egon]

Take a look at how similar hoes are mounted on a frame support with JD tractors.

 

[general1000]

:welcome: to TBN ! ...................

Thank you

Since you obviously do have the technical skills, I would definitely suggest that you make your own sub frame.
I think it would be VERY difficult to find a sub frame already made for your tractor, since others are ALWAYS looking for such things.
Perhaps you could get some factory built sub frame diagrams, or pictures before you begin.
That is a BEAUTIFUL clean looking little hoe!!

DO NOT BE TEMPTED TO EXPERIMENT WITH THAT HOE ON YOUR 3PT. HITCH!!

Great little tractor and backhoe. I used several hoes that size on little tractors over a 20 year period. I did use them on the 3 pt successfully, but was always careful and had no problem. On the 3pt, I only used them for digging in the dirt; no roots, stumps, or stones.
However, you will get much better service from it if you use a subframe. I'd suspect that subframes for the JD750 are still in stock. They should be. It is a fine little tractor...wish I had one. And there were a ton of them made - sold both by JD and the similar models by Yanmar. So there should be subframes out there.

Be very careful when you hook it up to the 3pt to disable the tractor's draft control if it has it. It probably does; the similar size Yanmar does. And also be sure to hook up and adjust the positive stop on the mounting arms that is supposed to prevent the 3pt from rising up and smashing you between the backhoe seat and the back of the tractor. That particular defect in 3pt backhoes has killed a lot of good people with those 3pt backhoes before they made a design change mandatory. Be very careful with that. For years there was a memorial picture of a teen-ager killed that way at my JD dealer.
And in spite of knowing about it, it happened to me one day when I had the little 3pt hoe hooked up to the 3pt on our farm tractor. I happened to put down pressure on the backhoe bucket and that tripped the draft control. The 3pt arms sheared the stops on the backhoe mounting arms and the whole backhoe jerked up into the air so violently I couldn't figure out what was happening. Only had about one second to react, but luckily just barely bailed out the side in time and fell to the ground...... Shaking... The backhoe seat was crushed flat against the back of the tractor. Don't do that....

Of course if you use a subframe none of this will happen and the backhoe has several times more usable power.
rScotty

Take a look at how similar hoes are mounted on a frame support with JD tractors.

I figure since it has the 955 frame I will see what I can fab up with some steel plates and maybe modify that frame to make it work. If I see this right, I do use the top 3 point mount under the seat.?

My 750 does not have draft control. This little tractor is 4x4 non power steering and completely manual transmission. It is a pain to operate, but it is a tough little bugger.

But, yea Im not going to use the 3 point.

Here is pic you guys can laugh at, me trying to support scaffolding.

 

[beenthere]

gen2000
Go to the jdparts site and for the model #7 you can look at the hangers spec'd for the 750 as well as those spec'd for the 955. Gives you a chance to compare the parts for fab'ing your own.
John Deere Parts Catalog

 

[TractorGuy]

Another Welcome to TBN.

Nice looking 7! I would try to buy the 955 to go with it.

 

[rScotty]

My 750 does not have draft control. This little tractor is 4x4 non power steering and completely manual transmission. It is a pain to operate, but it is a tough little bugger.

Yes, they sure are tough. Those 650 through 1050 JDs were just about the perfectly tough simple compact tractor. Made by Yanmar for JD, they used the newer 3 cylinder Yanmar engines, frames, and most importantly: that patented bevel gear front axle. By that time Yanmar had gone completely to power shift transmissions and hydrostatic power steering for their own tractors.... but for the JD models they coupled the new engine to their older manual transmissions. The result was a tractor that is still near bulletproof some 35 years later and probably good for another generation.

For awhile, JD offered a bolt-on accessory power steering assist cylinder for the smaller 50 series. Cost was about $700. That was a hybrid solution to try to ease the over-heavy steering on those tractors with a load on the FEL, and never was real popular. The steering-assist cylinder ran off the tractor hydraulics and added hydraulic power to the drag link. If you find one, it might be worth having. The power assist cylinder was bad about leaking, but easy to fix... annually....
rScotty

 

[general1000]

I am going to Columbus Ga. this Saturday to pick it up. Probably looking at 11 hours on the road.

But I am sure I will be back in here asking about hooking up the hydraulics.

When me and dad bought the Bush Hog FEL we like to never figured out what was going on and I found out somewhere we had to remove a plug that was inside the port under the seat. Now this was back when the internet was new.

 

[dsmau]

From looking at the backhoe picture, it does not look like it came from a x55 tractor. I know because I have one on my 855 and it does not look like this. You might already have the right subframe
Check this for sale on ebay JOHN-DEERE-BACKHOE-BRACKETS-7-A-7A-7-650-750-TRACTORS

 

[JwrightD]

I too have a 750 and actually just purchased a #7 backhoe for it this week. The one I purchased came off of a 955 as well, as far as I can tell the subframe may have to be shortened by about 2” but won’t know for sure until I have the rear brackets on. The front brackets that came off the 955 were bolted on with two u-bolts, I think with a little modifying they can be welded on and work just fine. The rear brackets are being the problem for me, they are completely different than the ones that fit the 750. I haven’t been able to find any specs on the brackets, JD stopped making them in 2000 and really can’t tell me anything about them. If I could find a spec sheet on the brackets with all the measurements I’m sure a friend of mind could make them on his CNC machine. Let me know if you find any specs on them. Thanks

 

[dsmau]

I too have a 750 and actually just purchased a #7 backhoe for it this week. The one I purchased came off of a 955 as well, as far as I can tell the subframe may have to be shortened by about 2 but won稚 know for sure until I have the rear brackets on. The front brackets that came off the 955 were bolted on with two u-bolts, I think with a little modifying they can be welded on and work just fine. The rear brackets are being the problem for me, they are completely different than the ones that fit the 750. I haven稚 been able to find any specs on the brackets, JD stopped making them in 2000 and really can稚 tell me anything about them. If I could find a spec sheet on the brackets with all the measurements I知 sure a friend of mind could make them on his CNC machine. Let me know if you find any specs on them. Thanks
View attachment 658477View attachment 658478View attachment 658476

This one is really from a x55 for sure. The subframe is like the other ones I have seen for x55 tractors as opposed to the original poster.
Quick note: Seems like there were also some frame reinforcement brackets for the 750. Take a look at the images on the ebay link I posted in the previous message. Those brackets also show up on the JD parts list.

 

[JwrightD]

Yes it is, I took it off myself. The reinforcements brackets don’t go on the 750, they were used on the 70 series. I saw that add on eBay a while back, it’s pick up only. I think the brackets look right but I’m quite sure the subframe is for a 70 series.
Thanks

 

[dsmau]

Yes it is, I took it off myself. The reinforcements brackets don’t go on the 750, they were used on the 70 series. I saw that add on eBay a while back, it’s pick up only. I think the brackets look right but I’m quite sure the subframe is for a 70 series.
Thanks

Sorry it does not help then. Hope you find a way! Keep us posted.

 

[general1000]

gen2000
Go to the jdparts site and for the model #7 you can look at the hangers spec'd for the 750 as well as those spec'd for the 955. Gives you a chance to compare the parts for fab'ing your own.
John Deere Parts Catalog

When you pick the model of your tractor on their site it dont refresh to the picture you need. Or dont show a picture at all. Pretty much useless.

I sure would like to have pics of the 7 mounted on a 750.

 

[general1000]

From looking at the backhoe picture, it does not look like it came from a x55 tractor. I know because I have one on my 855 and it does not look like this. You might already have the right subframe
Check this for sale on ebay JOHN-DEERE-BACKHOE-BRACKETS-7-A-7A-7-650-750-TRACTORS

I can take pics of my subframe if needed.

 

[general1000]

I too have a 750 and actually just purchased a #7 backhoe for it this week. The one I purchased came off of a 955 as well, as far as I can tell the subframe may have to be shortened by about 2 but won稚 know for sure until I have the rear brackets on. The front brackets that came off the 955 were bolted on with two u-bolts, I think with a little modifying they can be welded on and work just fine. The rear brackets are being the problem for me, they are completely different than the ones that fit the 750. I haven稚 been able to find any specs on the brackets, JD stopped making them in 2000 and really can稚 tell me anything about them. If I could find a spec sheet on the brackets with all the measurements I知 sure a friend of mind could make them on his CNC machine. Let me know if you find any specs on them. Thanks
View attachment 658477View attachment 658478View attachment 658476

Keep me posted. I am defiantly interested in what you find.

I got it home yesterday, 12 hours round trip.

Here is another pic of my subframe.

 

[general1000]

I found this guy so I sent him a email. John Deere 2x4 Diesel 750 JD750 2wd two-wheel-drive tractor with Model # 7 backhoe, 67 front loader, 603 Rotory Mower Brush hog

 

[JwrightD]

Thanks for the link. Your subframe definitely doesn’t look like the one I took off of the 955 but I’m sure you can modify it to make it work. Here are a few pics I found online when I was researching it.