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The continuing bent cylinder saga

V

vscummins

Well-known Member
Here's what we started with and what we ended up with smoothed some pits down and resealed both sides they were both bent in about a 50 degree angle
a223569.jpg

a223572.jpg
 
On my farmhand loader the ram comes out the front not the back. id turn those cylinders around. Just my opinion.
 
I don't know if it matters but that's the only loader cyl I've ever remember seeing that the rams are attached to he frame and the cyl to the arms shouldn't they be the other way around
I've way overloaded my loaders a few times and never bent one yet blew a few lines yes
Put to long of a cyl on my backhoe bucket and managed to bend the ram as it hit on the frame due to bad geometry as I can't get the right cyl so I went longer by 1 1/2" looking for more curl.
Should have went shorter which I have done since with no problems
 
"On my farmhand loader the ram comes out the front not the back. id turn those cylinders around." he sez....

<img src = "http://i.imgur.com/ECitQfA.jpg">
<img src = "http://i.imgur.com/6pa1aUx.jpg">
<img src = "http://i.imgur.com/SkCRwwh.jpg">
<img src = "http://i.imgur.com/Fy6aCSf.jpg">
<img src = "http://i.imgur.com/bRUn6To.jpg">
<img src = "http://i.imgur.com/U65nWvC.jpg">
<img src = "http://i.imgur.com/IUtf8RE.jpg">

(A DuAl may have sneaked in there somewhere!)
 
Yip had to much weight to high I've since limited myself to 3 bales high on the ground or 2 high on the trailer no problem since then even with them still not perfectly Straight . Wanted to see if it was going to work before I put money into seals and hoses
 
I nearly bought that loader in the first pick but I didn't come with a bucket and I really wanted a bucket I had a fork already so that's why I bought the one I did
 
That looks like a buckling problem (compression) issue. In that case it would not matter which direction the ram is installed since it will buckle at the smallest cross section, in this case the ram. The only exception would be if the pins or the ram locked up or as one other poster said, ran into the frame in which case it would also induce a bending moment which greatly reduces the allowable compression in the cylinder.
 
A while back I posted on Tool talk how I made a cordless belt sander to polish the rods on my cylinders. Worked good. How did you straighten the rod?
 
That loader may not of been designed for a tractor of that high of hyd. pressure. Also test the tractor pressure to make sure it is at 2250 psi.
I'd get a JD loader and put on there.
 
From an old Duncan cable/hyd loader to our 148 jd, rams are on the frame, reason being more lifting capacity, surface area of the cylinder. More on non ram side. chris
 
I know how I bent both of mine on my F-11, and it wasn't from too much weight lifting to high. It was from trying to push a tree out, and having to get high up in it to get it started over. I cheated on mine and just put tow straps around the rams, tied them to a pickup and pulled them somewhat straight. The cylinders do seep a bit, but in 6 months, they leak less the the rest of the fittings on the loader. Yes the will probably bend easier, but you aren't the first, nor will you be the last to have bent cylinders on a F-11.
 
I see your point but I'm not sure I agree. In my (limited) way of thinking the area of the inside of the cylinder has to be the same as the gland, if the gland was smaller then it wouldn't seal. I'm not so sure I'm right either :)
 

No matter which way the cylinder is installed, the rod must extend to lift the loader, thus the large end of the piston is doing the lifting in either case,
 
All construction loaders have the cylinder body attached to the frame.
Down there are where all of the dust,rocks and mud are AND makes the hoses shorter and more protected.
 
I pulled these back fairly straight with a come a long and piece of angle iron . Mine both were leaking since the day I bought it but the rods were rusted really bad so I didn't reseal them the rust I's finally gone so since I had em apart I figured I'd reseal em
 
I may be putting out to much pressure this is 6000 pounds of hay plus the trailer plus the box scraper Which weighs about 500
a223646.jpg
 
Oops, I didn't think everything through. If you are retracting then you are spot on about not having as much surface area. If extending then it makes no difference. Says a hydraulic manufacturing plant manager and former engineering dept manager.
 
Hi Old560.
I guess you had better go tell the engineers at ALO quickie and Buhler/ Alleid that. they are mounted with the rods on the bottom and the cylinder at the top like the 7 wrong pictures you mention. There are other makes of loader around to that are the same from the factory.
Regards Robert
 
Got the other cylinder resealed Boy it's nice to be able have a loader that doesn't leak a gallon of oil a minute the gland seal was a little tight took some persuasion
a223747.jpg
 
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