Tilt for front blade

[ArlyA]

You do know that air cylinders act like springs? Air is very, very compressible like a steel spring is.

 

[Xfaxman]

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Although it would be best to have the ram activated from the cab so fine adjustments can be made, it would be far simpler to fit a lever action air-operated cylinder that does not require any connection with the existing system? It will be no big deal to get down from the cab to set and adjust it. I guess what I will need is a double-acting cylinder. Comments please

You already have the manual tilt adjustment. Just remove the bolt that the arrow points to, loosen the bolts in the slots, tilt the blade and line up the new hole, put the bolt back in and tighten all three nuts

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[ArlyA]

I understand why brushman wants the power tilt, stopping to make adjustments only happens about once per day. I operate snow machines and one did have a all-way blade on it for a few years. All our implements we use, need to be adjustable while on the fly.

I'll attach two photos, in the 2nd one you can see the tilt actuator this blade has.

 

[Aussiebushman]

Yes, XFAXMAN, "You already have the manual tilt adjustment. Just remove the bolt that the arrow points to, loosen the bolts in the slots, tilt the blade and line up the new hole, put the bolt back in and tighten all three nuts" That is exactly how it is done manually, but please note that the blade weighs over 100 Kg and it is not as simple as it sounds.

The track that runs right around the perimeter of this property loops and slopes in several different directions due to the uneven terrain so Arly is correct that "adjustment on the fly" is a much preferred option. I'll persist in trying to find a suitable ram and control setup.

 

[Xfaxman]

Ok, I understand, you confused me when you said:

It will be no big deal to get down from the cab to set and adjust it.

Please update the thread as you work on it.

 

[James Eric]

I may not be following all of the details. But, is it possible to replace the current control with a 2 spool control mounted within reach from the seat. One spool to control height and one to control the tilt? ...Just a thought.

 

[Aussiebushman]

Thanks James

Is this what you mean? Also shown is picture of the current front lift control. You have now exhausted my knowledge of hydraulics so how to fit the new arrangement is beyond my simple bush-brain. Any suggestions?

 

[James Eric]

I do not know enough about the valve in the picture or your machine to give you a adatailed answer. However, if the only function of that valve is to raise and lower the blade, in theory, you should be able to replace the current valve with a 2 lever valve that will do what you want. I know you are not fond of your local shop, but they can tell you how to safely add a 2 lever valve. Once again, assuming the current valve's only job is to control the blade, you can insert a 2 lever valve its place. Then, all you would need is a tilt cylinder and the hydraulic lines. Of course , you still need to address any relief settings, flow rates, etc to keep the system safe. My knowledge is also limited so let's hope someone joins in that can give you additional direction. If it were me I would get all of the help I could from the local shops and from any engineering or trade schools in my area that teach hydraulics.

The basic design would take the input from the current valve and connect it to the new 2 lever valve. The output from the 2 lever valve would go the the same place that the output is going from the current valve. One lever would control the lift and the other would control the tilt. Finally, just mount the tilt cylinder, connect the hydraulic lines and start having fun.

BUT, ONLY AFTER YOU CONFIRM THE ROLE OF THE CURRENT VALVE AND TAKE THE REQUIRED SAFELY MEASURES BY INSTALLING ANY NEEDED RELIEF VALVES AND RETURNING THE FLUID BACK TO THE TANK.

1. How many hoses are connected to the current valve (4,5,6)?
2. Is the blade lift the only hydraulic component on your machine?
3. What is at the other end of the input and output hoses?
4. Is the input coming directly from a pump?
5. Is the output returning directly to the tank?
6. Is the relief valve part of the current valve and what is the relief setting?

Since the blade is already designed to tilt, you are ahead of the game.

I hope this helps...PS, if you are not sure take pictures.

James

 

[Aussiebushman]

Thanks James

That is excellent advice.

The general answer to your questions is that a single hydraulic pump feeds all of the systems, including the power steering, 3 pt linkage and the front blade lift. The control in the pictures however controls only the front blade and I frankly have no idea how the relief valve and return lines function.. The IT shop manual has many pages of detailed information but as with so many things, it is only of real value if one has some basic knowledge of where all the bits are and how they work. Currently beyond my simple mind.

I'll go to the local tractor guys for further input.

 

[James Eric]

Thanks James

Is this what you mean? Also shown is picture of the current front lift control. You have now exhausted my knowledge of hydraulics so how to fit the new arrangement is beyond my simple bush-brain. Any suggestions?

Yes, that is the type of valve i meant. All you really need to know is the specs on the current valve. Once you know that you can substitute the 2 lever valve and mount the cylinder. The questions are:
1. Open or closed; most likely open.
2. Internal or external relief valve and the pressure setting.

The shop should be able to look at your manual or service guides and answer these questions.

Let us know what you learn.

James