Hydraulic Side Tilt For 3PH--Single or Double Acting?

[npalen]

What tractor is this going to be for?

It will be for my Mahindra 3015. (30HP) I can get a pic and dimensions.

 

[npalen]

The distance from the upper end ball joint centerline (3/4" ball ID) to the backside of the clevis at the lower end is 12 1/4". This would be the nominal length with about 2" stroke plus and minus desired. (10 1/4" to 14 1/4")

Edit: The top link cylinder is from Fit Rite Hydraulics - fitritehydraulics.com
Thanks, Brian.

 

[Xfaxman]

So if you use a single acting side tilt cylinder, which way would you put it, power up or power down?

The single powered port would have to be on the rod end so it would retract the cylinder to "power up" and carry the load, right?

Right, but that means the weight of the attachment moves it down to tilt. What do you do when the attachment hits the ground and you want it lower?

Answer, install a double acting cylinder.

 

[MtnViewRanch]

Get a 4" stroke cylinder and you will be good to go.

I have a Mahindra 3215 myself.

 

[npalen]

Get a 4" stroke cylinder and you will be good to go.

I have a Mahindra 3215 myself.

Interesting comparing the 3215 and 3015 with the 3215 being the same displacement Mitsubishi but running turbo ata lower rate rpm with two more horsepower. My understanding is that the later models of the 3015 were fitted with turbos for emission reasons. These Mahindra's are very tough, all cast iron with no additional emission junk.

 

[npalen]

Right, but that means the weight of the attachment moves it down to tilt. What do you do when the attachment hits the ground and you want it lower?

Answer, install a double acting cylinder.

I see what you're saying and you have a point. By lower, I assume you would want the cylinder side tilted down. Would need to do that before lowering the implement to the ground, I guess. That side should stay lower then if no air in the rod side. Right?

Edit: I agree that the double acting cylinder is the way to go but just looking at alternatives, as usual.

 

[Xfaxman]

I see what you're saying and you have a point. By lower, I assume you would want the cylinder side tilted down. Would need to do that before lowering the implement to the ground, I guess.

Right, but sometimes you need to lower the tilt angle when the implement is down and engaged.

Edit: I agree that the double acting cylinder is the way to go but just looking at alternatives, as usual.

Good idea to do that .

 

[LouNY]

Single acting cylinders are commonly operated with conventional double acting valves using just the A or B port with the extra one blocked.
Pushing thru the relief valve is not an issue especially in the app where the cylinder is adjusted infrequently and a very short stroke.
A double acting cylinder and a valve with float detent would work as long as you didn't forget to move the valve back to center position when raising the 3PH.

Yes, it is done and I do it frequently when I'm running a tedder with my tractor.
I do not like running oil through the relief at high pressure as it is un needed wear if it can be avoided.
Every time that relief gets lifted there is wear on the seats and springs.
I cringe a bit every time mine gets used.

Yes, if you tried to lift with the valve in float you would not lift on that side and I would expect that the float position would infrequently be used.

 

[ericm979]

Right, but that means the weight of the attachment moves it down to tilt. What do you do when the attachment hits the ground and you want it lower?

Using the tilt cylinder to push down will just make the 3pt move up. Unless it has down pressure in which case you don't need the tilt cyl to push down.

I don't think I have seen a single acting tilt cylinder though. There aren't many to begin with and the ends are more tractor specific than the top cylinder. The only way I could see using a single acting cylinder is if you have one already and will be putting the correct ends on.

 

[3 Horse Ranch]

The single powered port would have to be on the rod end so it would retract the cylinder to "power up" and carry the load, right?

The problem is the forces on the implement would allow one side to float without the hard link of a double acting cylinder. The purpose is for the operator to easily control and adjust the side tilt of the implement, not the ground. Just my thoughts, but I think I will either stick to the manual side link or go with a double acting cylinder. .