$1000 TNT (dual tilt) for BX22

[picker77]

Nice work. Not sure I see the practical reasoning behind having tilt on both sides on a CUT with Cat 1 hitch, though. There's a practical extreme of tilt involved in a 3pt hitch that I can reach on my setup (which has only one tilt cylinder on the right side, with the adjustable link moved to the left). Meaning if I don't pay close attention to the top link adjustment I can gouge my tires with the scarfiers in certain extreme tilt positions combined with extending the top link too far. So the extra tilt cylinder would have only added cost, hoses, fittings, and complexity in my case. Probably also depends on the configuration of the box blade/scarifiers, too.

Can you move the box blade to any extreme position of all three cylinders in all positions at all positions of the lift arms without hitting your tire treads with something? From the photos, it looks like the max tilt angles are about the same as mine with only one tilt cylinder...??

 

[jnjpream]

Can you move the box blade to any extreme position of all three cylinders in all positions at all positions of the lift arms without hitting your tire treads with something? From the photos, it looks like the max tilt angles are about the same as mine with only one tilt cylinder...??

Yes, I can move the blade to all extremes w/o doing damage to my tires depending on the implement. The achievable angle is all based on the amount of travel you have in the links, hydraulic or otherwise. With a BX the link travel is probably less than on your CUT just due to lack of room behind it. I could have put on longer links and gotten a greater angle, but I didn't need it.

I felt that the stock lengths were adequate, the purpose of adding the hydraulics was to gain the ability to adjust on the fly, and to gain the extra clearance when traveling with an implement attached, which is a common concern on the BX. I've been doing a lot of landscaping and being able to travel one direction with the implement at a extreme angle, turn around, swing the implement to the other extreme, and engage the ground again without having to drive to the other side of the project has saved quite a bit of time for me. Again, you may have been able to do this with one hydraulic side link, but that is just one of the differences between your tractor and mine.

If your happy with your setup and don't see a practical use for an extra side link cylinder, then enjoy your setup the way it is. If you get adequate angle using only one side link cylinder, that is great.

But if you did need to achieve a greater angle on the fly, then a second cylinder may be what you want. This was the case for me. And this thread was intended for those that feel a dual cylinder setup would benefit them, that enjoy mechanical projects, and/or just want to save a buck and learn something new.

This is just free information for those that want it.

 

[CHDinCT]

We'll cover the valve mount etc in the next post.

Nice project and write up, but did I miss the part on how you plumbed that valve into your tractor? Did you simply use the BH loop and plumb it into the in and out of the valve, or is this whole set up fed independently from the BH loop? I'm curious if you could use the QC's that come with the BH loop and just unplug the BH when it's off the tractor, then plug them into the valve?

 

[picker77]

Yes, I can move the blade to all extremes w/o doing damage to my tires depending on the implement. The achievable angle is all based on the amount of travel you have in the links, hydraulic or otherwise. With a BX the link travel is probably less than on your CUT just due to lack of room behind it. I could have put on longer links and gotten a greater angle, but I didn't need it.

Roger that, I understand. I forgot about the difference in geometry related to longer/shorter hitch links, and also neglected to consider you were working with a SCUT vs CUT. I mentioned it because after I finished installing my TnT I was surprised to find that if I left the box blade at max tilt AND cranked the top link all the way closed, a scarifier tooth could get into my tire. Not a big deal because that's an almost never used position of the blade, but it got my attention and is something that's permanently in the back of my mind when I'm using it. If for instance I was doing some ditching and had the right side of the blade at max down, and forgot and raised both the top link and the rockshaft arms all the way up, the left outside scarifier would get into the left rear tire tread. That would probably cause me to have to change my shorts at the least and ruin an expensive tire at the worst. :laughing: Good job on your install, you'll enjoy having TnT, it's the only way to go.

 

[jnjpream]

CHD,

The backhoe on the BX uses an open center valve without power beyond, so I used another open center valve without power beyond and just plugged into the backhoe ports.

The QC are snap-tite brand, my local shop didn't carry them, and I was in a hurry to try it all out so I bought a different brand and replaced the ends on the tractor and backhoe. Didn't need anything special to do it, just grabbed a set that could handle the pressure and flow rate.

There is a lot of talk about using a power beyond port and tapping in a tank return line for remotes, but the system (at least for the BX22) was already designed to handle a non-power beyond valve so I saw no need to add one since I was only planning on using dual-action cylinders. But if I ever wanted to use a single-action cylinder, then I would need to plumb in a return line to the tank anyway.

A power beyond system, (similar to a single action valve) will dump return fluid straight into the reservoir instead of pushing it out the pressure port to the next serially attached valve in the system like a non-power beyond valve would do.

There may be an implement that you could hook up that could generate greater pressure (on the return side) than the main pump, but I'm not sure what that implement would be.. If you found one, and felt it was one that you had to use on a regular basis, then a power beyond might save some wear and tear on the next valve spool. Personally, I don't see this ever happening.

 

[MtnViewRanch]

jnjpream, offhand do you know what your closed and extended center-center lengths of your side links are?

Just wondering

 

[CHDinCT]

CHD,

The backhoe on the BX uses an open center valve without power beyond, so I used another open center valve without power beyond and just plugged into the backhoe ports.

The QC are snap-tite brand, my local shop didn't carry them, and I was in a hurry to try it all out so I bought a different brand and replaced the ends on the tractor and backhoe. Didn't need anything special to do it, just grabbed a set that could handle the pressure and flow rate.

There is a lot of talk about using a power beyond port and tapping in a tank return line for remotes, but the system (at least for the BX22) was already designed to handle a non-power beyond valve so I saw no need to add one since I was only planning on using dual-action cylinders. But if I ever wanted to use a single-action cylinder, then I would need to plumb in a return line to the tank anyway.

A power beyond system, (similar to a single action valve) will dump return fluid straight into the reservoir instead of pushing it out the pressure port to the next serially attached valve in the system like a non-power beyond valve would do.

There may be an implement that you could hook up that could generate greater pressure (on the return side) than the main pump, but I'm not sure what that implement would be.. If you found one, and felt it was one that you had to use on a regular basis, then a power beyond might save some wear and tear on the next valve spool. Personally, I don't see this ever happening.

Thanks. This is good to know since I am contemplating a trade up to a BX25 and currently have dual rear remotes on my BX1860, one circuit of which is used for an hydraulic top link, which I'd definitely miss with the BX25. Your way ahead of me on how the hydraulics are set up on these machines but I basically follow what you're saying. I suppose you just unplug the 3 spool valve an plug in the BH when you put it back on the tractor??

One question in my mind is if your valve has a pressure relief, where would it relieve to if there's no return to tank? Or do you just rely on the main system pressure relief?

 

[jnjpream]

Yes, I just unplug the aux valve and plug the BH back in. There is pressure relief on the valve. It dumps the relief to the output port of the valve.

 

[jnjpream]

I'll get the lengths for the side lengths this week end.

 

[MtnViewRanch]

I'll get the lengths for the side lengths this week end.

Thanks :thumbsup: