power beyond port

[gmason]

I've been told I can connect a 3pt backhoe's hydrulics to the power beyond circuit from my 16LA loader on my TC35DA. Has anyone done that or had it done?
Can you post some pictures, or some good instructions? Is it located pretty close to my FEL controller?

thanks
gary

 

[pekabu]

This isn't a huge amount of help but on my TC24D the 3 point hitch runs of the pb port, and I have to disconnect it to connect to the BH. On the rear axle is a return port.

 

[Roto]

As I understand it that most NH dealers do it this way and there is a kit they get with all the necessary parts. My backhoe is done this way but i dont have it yet for pictures. i looked at it and basically there is a line that goes up under right foot and hooks into 3 Pt. hitch line and disables that which you dont need anyway and the other line is a quick disconnect right near where the remote hydraulics area is. I dont know exactly where they hook but 2 quick disconnects and your up and running. No need for rear remote and the best possible pressure to run Hoe. I can post pics next week when i get tractor.

Mike

 

[joes_427_vette]

I have rear remotes on my TC 55. The dealer said to just connect the hoe to one of the remotes and tie the remote handle back to open the circuit. This will give you a constant flow for the back hoe to operate. I hope to try it this week to see how it works out. If it does my yard is going to look like a large prairie dog gathering.

 

[MadDogDriver]

Gary,

These instructions will work for all versions of the NH TC35,40, & 45 tractors with either the 16LA or 17LA installed.

Take a look at the hydraulic manifold inside your right rear tire just above the axle. This is the manifold that you'd attach any rear remotes to. The outer cover plate normally comes with just one hyd (male) QC fitting screwed into it. This is the fitting that your BH's short hose (pressure out) will connect to.

If you have any rear remotes attached to that manifold then you will have to get a hose kit that includes a replacement cover plate for that manifold. (I know that Woods has one shown in the photos) This replacement cover plate must include both the pressure out (male) and pressure return (female) QC fittings. The BH's long hose (pressure return) would connect to that female QC, but since you probably don't have the modified manifold cover plate the BH's long hose will have to be routed forward over the axle and connect to the hyd hose coming from the FEL controller.

NOTE: If you do have rear remotes and don't get the modified cover plate then the rear remotes will not work when the BH is connected.


Pictures will hopefully be the 1000 words to explain this.

This is the modified hyd manifold cover plate inside right rear tire for use with rear remotes. The original cover plate will be missing the red highlighted fitting.


Connect BH short hose (pressure out) to the male QC on this manifold cover plate. The BH long hose (pressure return) will connect to a female QC either at this modified cover plate or up forward to the FEL controller's hyd hose.



Looking under FEL controller, you will find two steel hyd lines and one hyd hose coming from the FEL controller and connecting to the hydraulic block manifold/diverter valve.



Close up of hydraulic block manifold/diverter valve. Disconnect the FEL hyd hose from the hydraulic block manifold/diverter valve QD and connect it to the BH long hose (pressure return) that you routed forward over the axle.

When you remove your BH, make sure that you reconnect the FEL's hose back to the forward hydraulic block manifold/diverter valve.

If you did by chance have the modified cover plate and used that instead of the FEL hose, then those QCs would need to be connected to each other. This is necessary to prevent your hyd system from dead heading. BAD

I hope this helps and wasn't too confusing.
Curious why you want to connect a BH to 3pt instead of a subframe.

 

[gmason]

Thanks Dog, great pictures. One of my questions to the dealer was did i need to buy/get any NH parts for the power beyond connection and he said NO.
So the manifold you show in your first 2 pics(that I don't have) would not be needed and hte kit is about $500 from NH.

He maded it sound like you just tap into the FEL lines somewhere. Said a service tech could walk me through it.

yes those pictures are worth $100k

thanks
gary

 

[gmason]

here's a picture on my port inside the rear tire

 

[gmason]

Curious why you want to connect a BH to 3pt instead of a subframe.

I didn't want to have to remove the 3pt connections everytime I put the BH on, and I wanted to spend less time switching from bushog to BH.

sound reasonable?

gary

 

[MadDogDriver]

Gary,

It looks like your cover plate at the right rear manifold doesn't have any fittings on it, just attaching bolts. In that case, I think you'd have to run both of your BH hoses forward and just match up the QC's with where you removed your FEL hose. I'd trust your dealer to make sure for you.

I'd be concerned about the stability of your BH mounted on your 3pt hitch vs mounting it on a subframe. I know that some subframe kits are not compatible with mid mount attachments or the new cab versions of the 40 & 45's, so in that case you wouldn't have a choice until someone designs compatible subframes. You want your BH to be as solid as possible and 3pt attachments give alot more than the 4pt subframe attachments. As far as removing the 3pt arms, it's not that big of a deal. I remove my top link and the stablizers for the lower arms and just bungy cord the lower arms together. You could remove the lower arms as well with just a couple of pin pulls if you prefer. It's not that hard once you do it.


lower arms bungied together

 

[tractornate]

you have a plug on your cover plate that can be removed (it is a allen) and that is where you run your return line from the backhoe to the tractor.
I have found that it is easyer and cheaper to install the woods hyd kit (lists for $280) then making hoses and then buying all of the fittings and the time to put it all together. I usally even use the woods kits for almost any backhoe that i sell!
ps it makes it faster and nicer to hook up the backhoe no crawling on the ground and running a line up front and trying not to catch it on a limb and tearing it off!
I hope this helps

 

[gmason]

Yes, there is a Port on the side facing the rear wheel. I felt, and there might even be another on on the front side facing the front of the tractor.

So the return would go there, where would the output one connect to???
thanks
gary

 

[frwinks]

I'm kinda in the same boat, I have a rear remote installed and would like to run the BH off of it. Since the BH came with one male and one female QC, can I just change the female fitting on the BH to a male, hook into the rear remote, engage the remote lever and call it done??

1pic: valve in the right wheelwell
2pic: manifold
3pic: two QC which I would like to use to hook up the BH

 

[MadDogDriver]

Gary,

Referring to my post #5 pics above: Look at that forward hydraulic block manifold/diverter valve and locate the upper left port. That port is the pressure return port back into the tractor. The line from the FEL controller that attaches to that port is the tractor's pressure out. On my tractor it has a male QC screwed into that port and the female QC comes from the FEL controller. You would get your hyd pressure from that FEL line for your BH. To complete the loop, the pressure from the FEL flows into your BH and needs to return to the tractor. Instead of running your BH's pressure return line all the way forward to where the FEL connected to that forward block manifold/diverter valve's upper left port, you could have it return into that rear hyd manifold by replacing the allen plug that faces your right tire and installing a QC to accept your BH's return line.

The flow of hydraulic fluid would then come from the FEL controller into the BH, out of the BH and back into the tractor at that rear manifold.

Getting the modified cover plate for the rear manifold makes life a lot easier for mounting/unmounting your BH.

 

[MadDogDriver]

frwinks,
You could do that, but be very careful that you keep the hyd flow in the correct direction. You'd have to have the ability for your remote to be activated constantly. You'll blow out seals in your BH if the pressure gets reversed.

Your profile doesn't show which tractor or BH you have. Our discussion has been about the TC35/40/45s. The other thing you need to ensure is that your tractor is able to deliver the minimum hyd flow gpm necessary for your particular BH. Some BHs have a PTO pump option if your tractor can't provide the required flow.

 

[gmason]

Gary,


The flow of hydraulic fluid would then come from the FEL controller into the BH, out of the BH and back into the tractor at that rear manifold.

Getting the modified cover plate for the rear manifold makes life a lot easier for mounting/unmounting your BH.

Does this mean, you can't use your FEL when you've got the BH hooked-up to the hydrulics?
gary

 

[gmason]

you have a plug on your cover plate that can be removed (it is a allen) and that is where you run your return line from the backhoe to the tractor.
I have found that it is easyer and cheaper to install the woods hyd kit (lists for $280) then making hoses and then buying all of the fittings and the time to put it all together. I usally even use the woods kits for almost any backhoe that i sell!
ps it makes it faster and nicer to hook up the backhoe no crawling on the ground and running a line up front and trying not to catch it on a limb and tearing it off!
I hope this helps

what size would you say that fitting on my cover plate would be? 1/2", 3/8".
Guess I could just 90deg off that cover to the back of the tractor with a solid line for my return.

 

[MadDogDriver]

Does this mean, you can't use your FEL when you've got the BH hooked-up to the hydrulics?
gary

No, your FEL works just fine with the BH installed. Regarding your question in the photo: Yes, that's the line from the FEL controller that will provide pressure to your BH. Disconnect that line from the forward manifold and connect it to your BH's pressure IN hose. Once you've connected the BH's pressure OUT hose to the rear manifold you've completed the circuit for continuous flow and the FEL, BH, and tractor will be happy. When the tractor's engine is running, that hyd fluid is constantly flowing through the FEL controller, BH and back into the tractor's resevoir. When you disconnect the BH, then you need to reconnect the FEL's controller QC back to the forward manifold as shown in that photo allowing the continuous hyd flow.

 

[frwinks]

frwinks,
You could do that, but be very careful that you keep the hyd flow in the correct direction. You'd have to have the ability for your remote to be activated constantly. You'll blow out seals in your BH if the pressure gets reversed.

Your profile doesn't show which tractor or BH you have. Our discussion has been about the TC35/40/45s. The other thing you need to ensure is that your tractor is able to deliver the minimum hyd flow gpm necessary for your particular BH. Some BHs have a PTO pump option if your tractor can't provide the required flow.

thanks for the reply and sorry for mixing up the models... I updated my thread here:
http://www.tractorbynet.com/forums/nh-owning-operating/98724-757b-bh-my-1720-a.html
your help is much appreciated

 

[MadDogDriver]

thanks for the reply and sorry for mixing up the models...

No problem and mixing models is no biggie either. Your profile didn't show anything and it makes it difficult to know exactly what you're dealing with. Keeping apples to apples helps avoiding misinformation, fortunately NH keeps some similarity between their tractors new & old, big & small.

Welcome to TBN and good luck!

 

[gmason]

OK, just took the leap today and picked up a Bush Hog 765H backhoe from a great nice dealer in Hartsville S.C. T&T tractor.

Came off a 2002 NH TC35D, same as mine, so I know the frame supports will fit perfectly. Don't have a pic yet for it, but I went ahead and got the Rear Remote kit for a great price. They are a CASE dealer so it's says CASE IH, but we all know that the DX35 is the same tractor as NH TC35D.

I'll take some pics of the install sometime soon, but for now here's a picture of the parts included with the kit.