OP
Henro
Elite Member
- Joined
- Jul 4, 2003
- Messages
- 4,982
- Location
- Few miles north of Pgh, PA
- Tractor
- Kubota B2910, BX2200, KX41-2V mini EX
Wow! Turned out to be a busy day. I heard something at the road this morning and it turned out to be the state doing their once every five years or so scraping of the road's edge. So much nice black top soild going into those dump trucks...wonder if I could get some of that... /forums/images/graemlins/smile.gif
Well I ended up giving the drivers $5 per load to dump it at the top of my driveway. I had seen the supervisor and told him I wanted some fill if he could dump it for me, but he did not seem to act on it. I saw a couple trucks go by without looking my way, so I flagged the next one down and talked to the driver...there were three drivers all told and they were happy to put some beer money in their pockets I guess...These were tandem axle dumps, not sure what load they carried but they were full and don't have to worry about scales probably, since they are state vehicles. Kept me away from TBN all day!
Glenn9643
I am going to add flow restrictors I think. It just seems like a good idea.
The reason I am thinking to go with two cylinders on the tilt is because I feel that may make it easier to match the existing design of my 3PH. But even then maybe not. My fixed lift rod is about 17 inches long. The adjustable side goes +/- 3" more or less. So if I could have one tilt cylinder that retracted was 14" pin to pin center, and had a 6 inch stroke, that would be perfect. I don't think this is a common animal.
The next choice would perhaps be two cylinders that had a retracted lenght of 14" and a stroke of 3". By alternating one or the other I could have the same tilt as factory designed, and when both were extended the hitch would be level at the factory designed lift rod length of 17". Something like this may be available.
What I am concerned about is having a tilt cylinder that is too long. I understand it is common to put the adjustable lift rod on the other side opposite the tilt cylinder, and lenghen it to match the mid point of the cylinder stroke. This would perhaps result in being able to apply down pressure when the cylinder is fully extended, as you say, likely not a good thing as the tractor may not be designed to handle this situation.
The leak down you are experiencing my be due to the control valve leaking and not the cylinder. From what I have read here at TBN that is fairly common and is the reason for lock valves being put between the control valve and cylinder.
MadReferee,
My understanding is that those load checks in the Prince control valve only function when the valve is operated, and do nothing to hold the cylinder when the control valve is centered. They are there to hold the cylinder in position when the valve spool is shifted, if the cylinder is under load. At least that is my take on what I have read in the Prince catalog.
Jim at Integration Engineering told me that the tilt cylinders are about 16 inches retracted. This would force the 3PH to run lower if you want to have +/- adjustability with only one cylinder, from what I can see. This may be a non-issue, but it concerns me.
Egon,
Thanks for the info on stainless tube bending. I am not sure if I will need to do it, but it is good to know if I want to it shoud be within my means...if I can afford the fittings!
Inspector507,
Thanks for the link to the picture. I had emailed Jim a while back and go the prices and cylinder lenghts...I am not sure what I will do yet with respect to cylinders. I like the challenge of doing it myself, more than saving money, which doesn't hurt either. But mostly I never did a hydraulic project and want to feel the reward of doing one on my own, kind of thing...
PineRidge,
I will do my best to get restrictors in the lines when I put my system together...I appreciate the advice!
Sorry for clumping all these replies into one post, but it was a busy day. I did not get in until around 9 pm...not complaining though! That pile of soil looks so good I am guite satisfied with the way the day turned out! 6~8 hours seat time did not hurt either... /forums/images/graemlins/cool.gif /forums/images/graemlins/smile.gif
Well I ended up giving the drivers $5 per load to dump it at the top of my driveway. I had seen the supervisor and told him I wanted some fill if he could dump it for me, but he did not seem to act on it. I saw a couple trucks go by without looking my way, so I flagged the next one down and talked to the driver...there were three drivers all told and they were happy to put some beer money in their pockets I guess...These were tandem axle dumps, not sure what load they carried but they were full and don't have to worry about scales probably, since they are state vehicles. Kept me away from TBN all day!
Glenn9643
I am going to add flow restrictors I think. It just seems like a good idea.
The reason I am thinking to go with two cylinders on the tilt is because I feel that may make it easier to match the existing design of my 3PH. But even then maybe not. My fixed lift rod is about 17 inches long. The adjustable side goes +/- 3" more or less. So if I could have one tilt cylinder that retracted was 14" pin to pin center, and had a 6 inch stroke, that would be perfect. I don't think this is a common animal.
The next choice would perhaps be two cylinders that had a retracted lenght of 14" and a stroke of 3". By alternating one or the other I could have the same tilt as factory designed, and when both were extended the hitch would be level at the factory designed lift rod length of 17". Something like this may be available.
What I am concerned about is having a tilt cylinder that is too long. I understand it is common to put the adjustable lift rod on the other side opposite the tilt cylinder, and lenghen it to match the mid point of the cylinder stroke. This would perhaps result in being able to apply down pressure when the cylinder is fully extended, as you say, likely not a good thing as the tractor may not be designed to handle this situation.
The leak down you are experiencing my be due to the control valve leaking and not the cylinder. From what I have read here at TBN that is fairly common and is the reason for lock valves being put between the control valve and cylinder.
MadReferee,
My understanding is that those load checks in the Prince control valve only function when the valve is operated, and do nothing to hold the cylinder when the control valve is centered. They are there to hold the cylinder in position when the valve spool is shifted, if the cylinder is under load. At least that is my take on what I have read in the Prince catalog.
Jim at Integration Engineering told me that the tilt cylinders are about 16 inches retracted. This would force the 3PH to run lower if you want to have +/- adjustability with only one cylinder, from what I can see. This may be a non-issue, but it concerns me.
Egon,
Thanks for the info on stainless tube bending. I am not sure if I will need to do it, but it is good to know if I want to it shoud be within my means...if I can afford the fittings!
Inspector507,
Thanks for the link to the picture. I had emailed Jim a while back and go the prices and cylinder lenghts...I am not sure what I will do yet with respect to cylinders. I like the challenge of doing it myself, more than saving money, which doesn't hurt either. But mostly I never did a hydraulic project and want to feel the reward of doing one on my own, kind of thing...
PineRidge,
I will do my best to get restrictors in the lines when I put my system together...I appreciate the advice!
Sorry for clumping all these replies into one post, but it was a busy day. I did not get in until around 9 pm...not complaining though! That pile of soil looks so good I am guite satisfied with the way the day turned out! 6~8 hours seat time did not hurt either... /forums/images/graemlins/cool.gif /forums/images/graemlins/smile.gif
