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PLEASE HELP..Photos


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#1 Auburn David OFFLINE  

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Posted May 25, 2016 - 09:24 PM

My Ingersoll 6018 backhoe (Frankin Tractor)is giving me fits..it keeps blowing the end cap out of one of the Hydro cyls..a band is all that should hold it in..but I have gone so far as to put carbon screws in it (drilled and tapped) and a strap welded over the top..it breaks the screws..and the straps..you would think it was doing this when fully extended..but it when its fully collapsed..Please some one give me some ideas..I need they tractor and I am going broke buying seals and packing.

 

(The photo is what it looked like before rebuilding)

Attached Thumbnails

  • cyl2.jpg
  • cyl1.jpg
  • post-61865-0-68543400-1464229459.jpg

Edited by KennyP, May 26, 2016 - 06:46 AM.
Rotate pic

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#2 Auburn David OFFLINE  

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Posted May 25, 2016 - 09:25 PM

I give up on getting my Photos to post right side up on this site...LOL


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#3 dodge trucker ONLINE  

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Posted May 25, 2016 - 09:44 PM

"carbon screws".... huh????


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#4 Auburn David OFFLINE  

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Posted May 25, 2016 - 09:52 PM

High carbon hardened screws..super strong per the nut and bolt place.They seem to break and not bend though...LOL


Edited by Auburn David, May 25, 2016 - 09:53 PM.

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#5 Auburn David OFFLINE  

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Posted May 25, 2016 - 09:54 PM

The softer ones just bend..


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#6 boyscout862 ONLINE  

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Posted May 25, 2016 - 10:26 PM

What is the pressure setting for the safety bypass? It maybe that the pressure is too high or the cylinder retainer is too worn. Good Luck, Rick


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#7 Tecumseh power OFFLINE  

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Posted May 25, 2016 - 10:27 PM

I agree check the bypass
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#8 Eric OFFLINE  

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Posted May 25, 2016 - 10:28 PM

I was a hydraulic specialist with the Navy and have seen problems similar to this in the past. what do the packings look like when you remove them, crushed, torn, or does it look like a blowout? Sometimes with wear when the cylinder returns to its fully retracted or fully extended position it hits the seals or depending on the cylinder pinches them and that causes the failure. the next time you break the cylinder down take pics of the whole unit and its paryts so I can get a better idea of its construction. Send it in a pm to me and I will try to help you out as much as possible. One last thought, do your cyliders call for shims at all in the manual?
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#9 Chopperhed OFFLINE  

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Posted May 25, 2016 - 10:34 PM

It sounds like an over pressure problem or damaged bore/ rod problem. From your post I guess that the end seals are blowing when you are retracting the cylinder. Either you are over pressuring the system (IE. working it to hard, or too big a pump, bad relief valve), or that the cylinder bore at the seal area is damaged. Seal material is an issue too depending on seal material and fluid used.
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#10 Eric OFFLINE  

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Posted May 25, 2016 - 10:38 PM

I also was thinking sometimes they have a backing ring and without it they can destruct.
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#11 BTS ONLINE  

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Posted May 25, 2016 - 11:34 PM

If it's the relief valve that's goofed up, wouldn't it be blowing all the seals on the loader and backhoe? not just the one cylinder?.

What are the measurements of the cylinder? I have a big pile of cylinders, maybe I have one that would work?


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#12 Alc ONLINE  

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Posted May 26, 2016 - 05:22 AM

David could you take a picture or that cylinder in the retracted position .   I'm thinking Eric is on to something  ,


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#13 Auburn David OFFLINE  

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Posted May 26, 2016 - 08:24 AM

I was a hydraulic specialist with the Navy and have seen problems similar to this in the past. what do the packings look like when you remove them, crushed, torn, or does it look like a blowout? Sometimes with wear when the cylinder returns to its fully retracted or fully extended position it hits the seals or depending on the cylinder pinches them and that causes the failure. the next time you break the cylinder down take pics of the whole unit and its paryts so I can get a better idea of its construction. Send it in a pm to me and I will try to help you out as much as possible. One last thought, do your cyliders call for shims at all in the manual?

All the Packing look good..it just pops the aluminum cap out..and the seals get damaged during the process of it being ejected.



#14 Auburn David OFFLINE  

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Posted May 26, 2016 - 08:26 AM

The first photo in the header shows the aluminum counted sunk cap that is being ejected...here it is again

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  • cyl2.jpg


#15 Alc ONLINE  

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Posted May 26, 2016 - 08:28 AM

I'm sorry David , meant to say " take a picture of that cylinder in the extend  position "


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