bent hydraulic cylinder???

[MarkV]

Diamond I also straightened a cylinder rod on a backhoe, in the most primitive way, by blocking under it and using the hydraulics. I believe 3RRL did something similar and documented it in the archives. A search will pull it up. It is kind of like, " what do you have to loss".

MarkV

 

[Diamondpilot]

Well I went out and lifted the loader, disconnected the piston rod end from the bucket and flipped them over and re-pinned them. I then used a block of 2x4 and worked one side at a time against the loader frame bending the piston rod using the tractors hydros by manipulating the curl on my loader. I did it in small steps checking with a metal strait edge as I went. I was able to work it back from 1/4" bow over 24" length to less than 1/16" of bow. I am happy.

Thanks for all the suggestions.

Chris

 

[3RRL]

Hi Chris,
I see Mark already pointed you in the right direction and you fixed the problem already too.
Great job! If you didn't find the link to what I did, maybe Mark could post his thread link where he straightened his out. I remember reading about it and it works. My original post was when I re-positioned Loretta's cylinder attachments on her Jinma 284. The factory fel cylinder attachments allowed too much dump and actually caused the rods to bend. I did it all at camp. You may have read about it?
Rob-

 

[Diamondpilot]

Hi Chris,
I see Mark already pointed you in the right direction and you fixed the problem already too.
Great job! If you didn't find the link to what I did, maybe Mark could post his thread link where he straightened his out. I remember reading about it and it works. My original post was when I re-positioned Loretta's cylinder attachments on her Jinma 284. The factory fel cylinder attachments allowed too much dump and actually caused the rods to bend. I did it all at camp. You may have read about it?
Rob-

Yes, I remember it Rob. You did a fantastic job at re-engineering the loader to not allow that to happen.

Chris

 

[BWBrown]

I've bent two cylinder rods.

One was just slightly bent, maybe 3/4 inch out of straight - used the hydraulic press - a couple careful pushes - and put it back to right.

The other, well, was really bent - more than 45 degrees - a real kink! Tried the press, all was going ok, 'til it started making all sorts of cracking noises.
Turns out there is a hard surface/plating on the rod that doesn't like to do a lot of stretching and bending, ended up with literally thousands of surface cracks.
So... I treated my bucket truck to a new cylinder.

I like, and have made mental notes on, some of the ideas posted here - hope I don't have opportunity to try them out too awful soon though.
Thanks,
Bob