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82 allis chalmers 715c backhoe hydraulics
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ac89 View Drop Down
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Joined: 18 Mar 2015
Location: maine
Points: 325 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ac89 Quote  Post ReplyReply Direct Link To This Post Topic: 82 allis chalmers 715c backhoe hydraulics
    Posted: 06 May 2020 at 10:43pm
Does anyone have any sources for hydraulic packing for the cylinders on my 715c? I can't seem to get ahold of my local hydraulic shops so I was wondering if there was a cross reference to maybe other brands that I could just order off line. I plan on repacking the cylinders myself. Any help would be appreciated thanks also looking for books on them if anyone has any kicking around they would be willing to sell.
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Calvin Schmidt View Drop Down
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Points: 4529 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Calvin Schmidt Quote  Post ReplyReply Direct Link To This Post Posted: 07 May 2020 at 6:24am
Your local hydraulic shops are your best bet. Keep trying. 
Nothing is impossible if it is properly financed
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DMiller View Drop Down
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Joined: 14 Sep 2009
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Points: 33222 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DMiller Quote  Post ReplyReply Direct Link To This Post Posted: 07 May 2020 at 7:16am
There are literally dozens of different packing/seals suppliers to the hydraulics industry, not all specialize in one particular style type or form of seals where someone in a hydraulics shop will know whose catalog to review first, how best to measure for seals etc. Keep trying the shops they are the ONLY experts at this time.
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Coke-in-MN View Drop Down
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Points: 41867 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Coke-in-MN Quote  Post ReplyReply Direct Link To This Post Posted: 07 May 2020 at 11:13am
There is NO PACKING in the cylinders , they use ring seals and or lip seals with wear sleeve on pistons . The old packing V ring seals used many years back have been replaced with tight tolerance and high pressure designed applications  . Square ring with a backup ring or other type of bearing surface to guide and seal cylinders . Wiper seal is just that now to clean shaft before entering internal gland seals 



Edited by Coke-in-MN - 07 May 2020 at 11:16am
Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."
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ac89 View Drop Down
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Points: 325 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ac89 Quote  Post ReplyReply Direct Link To This Post Posted: 07 May 2020 at 2:42pm
Ok thanks everyone that's kinda what I figured but it doesn't hurt to ask I suppose. I plan on taking 2 cylinders apart on the front the big cylinder and the bucket tip cylinder hopefully it will be fairly easy on the wallet because I plan on redoing all of the cylinders.

Edited by ac89 - 07 May 2020 at 2:44pm
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Coke-in-MN View Drop Down
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Points: 41867 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Coke-in-MN Quote  Post ReplyReply Direct Link To This Post Posted: 08 May 2020 at 12:30pm
You can try Sandy Lake Imp , or look at MINNPAR site for kits also 
Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."
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ac89 View Drop Down
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Points: 325 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ac89 Quote  Post ReplyReply Direct Link To This Post Posted: 08 May 2020 at 5:37pm
I finally got ahold of the hydraulic shop so now im taking a couple of each cylinders on the front to see if they can get the seals for me. Would rather get everything and do it myself.
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Daedalus View Drop Down
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Points: 4 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Daedalus Quote  Post ReplyReply Direct Link To This Post Posted: 08 Sep 2020 at 11:08am

Hello, ac89.  Did you have any luck finding a source for your hydraulic cylinder seal kit?  I know that I am going to have to rebuild almost every cylinder on my 715B, and the original seal kit part numbers don't mean anything to anyone...  such as part # 1001100-5 (Loader lift Cylinder Seal Kit).  I just can’t believe that someone out there hasn’t picked up the spare parts kit for the Allis Chalmers industrial line…
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ac89 View Drop Down
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Points: 325 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ac89 Quote  Post ReplyReply Direct Link To This Post Posted: 08 Sep 2020 at 2:51pm
Hello Daedalus. I ended up taking my cylinders apart and brought them to the hydraulic shop and they were able to replace all seals for me at a very low cost.
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Coke-in-MN View Drop Down
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Points: 41867 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Coke-in-MN Quote  Post ReplyReply Direct Link To This Post Posted: 10 Sep 2020 at 5:44pm
Many of the seal kit numbers for the old AC line of equipment might be cross referenced by a AC (former) parts guru but they are few and far between now , Herc-U-Lift was a AC dealer here in MN and ND which handled fork lifts and other industrial equipment . MinnPar was the dealer supplier for AC and located in Mpls MN 
 Or like someone found out many of the parts are standard off the shelf parts at a hydraulic shop . 
  It's like i needed a O ring for the Steering clutch drum on my FD5 dozer - expensive from dealer and 3 week wait they said - went to industrial parts supplier for O rings I use to use - said they had a minimum order of $25 for parts - but happened to have that size in stock - they could give me 2 samples to try - then if i needed more I could order them - Oh those samples were at no cost . 
  
Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."
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