Backhoe Going to buy a #7 backhoe

[general1000]

Well from looking at these pictures my subframe is not the right one. I found that guys facebook page, so I messaged him.
Maybe he can tell me exactly what I need since his is all correct.

 

[beenthere]

General
Does your main frame for the #7 look like this?

 

[general1000]

So a year later....I have started to modify the sub frame. This one pic was taken last summer of me unloading the hoe off the trailer.
It is so heavy the loader was maxed out.

 

[general1000]

Where I am lost is on the hydraulics. I have a Bush Hog 1840QT loader and it is connected as shown. 3 hoses. I am assuming the one hose I have the arrow on is the return as it goes into the side of the transmission down next to my left leg.
The two hoses connected under the seat are both positive pressure?

Can I T off one of these for the back hoe for pressure?

 

[Topzide]

If like me Iskei, the ones under the seat are pressure out and pressure return for the 3 point. The other is low pressure return to Trans. As long as you have open center on the backhoe controls, then yes. Don't tee off, just run through the valve and back.

 

[general1000]

I have to keep those hoses pictured for my loader. Thats why I assumed I need to T off to have power to both. Unless I use quick disconnects and change everytime I want to use either loader or backhoe.

 

[Topzide]

Just put quick connections for the backhoe, when you take backhoe off, plug together for the loader to continue to be operational. Some manufacturers have a bypass hose you plug in when removing the backhoe.

 

[California]

Before getting into that plumbing, verify that you have enough hydraulic volume to run a backhoe. The similar Yanmars from that era don't have nearly enough capacity so a pump hanging off the PTO is needed.

 

[general1000]

Looking for a manual I could not find a match to this serial number.

 

[robpm]

Looking for a manual I could not find a match to this serial number.

I think that this manual should cover you. It covers s/n's "130240 -" which means that s/n and everything above. I am assuming you know where to get the manual but in case not you can find them here Search for Equipment Publications - Technical Information Store

The other thing is that you can buy the technical manual and also the parts manual.

I own a 990 with an 8B BH. It has a similar frame. The frame comes all the way through to the FEL to mount. My guess is that you will definitely have to frame something out to hook to your non JD FEL. If you would like some pics of how mine is laid out I could do that this weekend. It would give me an excuse to pull it out and take off the chains from the winter.

Also the 990 has a PB setup so that you can run things like BH's etc. I would think that you would want to get the manual for the 750 and that would give you some possible more info on the hydraulics of it.