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Hydraulic lift piston


 
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Cameron Duncan
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PostPosted: Mon Dec 31, 2012 8:44 am    Post subject: Hydraulic lift piston Reply to specific post Reply with quote

Fighting a hydraulic problem replacing as I go.
Changed the pump, cleaned out sludge and old fluid,
now on hydraulic lift piston. I bought a new piston
with a single o-ring and leather backing ring to
replace the original 3-iron ring piston. Any
suggestion on getting the leather ring into it's
position? Thought about soaking in very hot water to
loosten it to slide on.
 
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HCooke
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Joined: 29 Sep 2006
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Location: Missouri

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PostPosted: Mon Dec 31, 2012 9:15 am    Post subject: Re: Hydraulic lift piston Reply to specific post Reply with quote

"Thought about soaking in very hot water to
loosten it to slide on."

Yep. Oring goes toward the oil. Leather backup ring goes on the side away from the oil.
 
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NOXJohn
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PostPosted: Mon Dec 31, 2012 9:42 am    Post subject: Re: Hydraulic lift piston Reply to specific post Reply with quote

I always soak in warm/hot oil not water. The warm oil makes the leather expand and help lube it when sliding on.
 
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old
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Joined: 12 Mar 2000
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Location: Lake of the Ozarks area of MO

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PostPosted: Mon Dec 31, 2012 9:46 am    Post subject: Re: Hydraulic lift piston Reply to specific post Reply with quote

There are 2 types of back up rings. One is made of leather and the other rubber I prefer the rubber ones. Easier to put on and been told they hold up a lot longer
 
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Cameron Duncan
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PostPosted: Mon Dec 31, 2012 12:36 pm    Post subject: Re: Hydraulic lift piston Reply to specific post Reply with quote

Thanks but I already have the leather as per man. rec. so I'll have to try to use it or wait 2 more weeks for a replacement.
 
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Cameron Duncan
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PostPosted: Mon Dec 31, 2012 12:37 pm    Post subject: Re: Hydraulic lift piston Reply to specific post Reply with quote

Thanks, that makes sense, I'll try that.
 
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mbramble
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Joined: 05 Nov 2011
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Location: Cantonment, FL

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PostPosted: Mon Dec 31, 2012 1:56 pm    Post subject: Re: Hydraulic lift piston Reply to specific post Reply with quote

Cameron Duncan wrote:
(quoted from post at 13:36:23 12/31/12) Thanks but I already have the leather as per man. rec. so I'll have to try to use it or wait 2 more weeks for a replacement.


If you end up needing the rubber one, send me your address via e-mail and I will send you one.

Mike

mike@bramblett.com
 
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L. B,
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PostPosted: Mon Dec 31, 2012 2:01 pm    Post subject: Re: Hydraulic lift piston Reply to specific post Reply with quote

The leather is per manuf,as it should be a wiper. No?
 
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TheOldHokie
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PostPosted: Mon Dec 31, 2012 2:41 pm    Post subject: Re: Hydraulic lift piston Reply to specific post Reply with quote

L. B, wrote:
(quoted from post at 18:01:04 12/31/12) The leather is per manuf,as it should be a wiper. No?


No - it is not a wiper. It is a backup ring that supports the backside of the o-ring to help prevent extrusion under pressure. The hard rubber or PTFE versions probably work better.

TOH
 
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old
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Joined: 12 Mar 2000
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Location: Lake of the Ozarks area of MO

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PostPosted: Mon Dec 31, 2012 4:18 pm    Post subject: Re: Hydraulic lift piston Reply to specific post Reply with quote

Wait 2 weeks. What don't you have any tractor dealers close to you??. Shoot the last time I got the NAA piston and all I called the dealer and they had them on hand. I could have had it sent for an extra $10 or drive 40 miles one way so I ordered it and had it in 2 days
 
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souNdguy
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PostPosted: Mon Dec 31, 2012 4:58 pm    Post subject: Re: Hydraulic lift piston Reply to specific post Reply with quote

soak it in hot water. ( real hot ) for 5 minutes.. then lube with some oil.. and then use 2 spoons ( eatin' spoons ) and walk it on like you were beading a tire on a rim..

leather are mostly what I've used. they worked for 50-60 years.. can't be that bad... I HAVE used the rubber ones. they DO go on easier, and have a cup side.. i won't be alive in 50-60 ys to see if they hold up the same as the leather ones.. so don't matter to me.. Smile
 
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L. B.
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PostPosted: Mon Dec 31, 2012 7:17 pm    Post subject: Re: Hydraulic lift piston Reply to specific post Reply with quote

Okee-doe-kee OldHokie
 
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FiremanKyle
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Location: Saginaw, MI

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PostPosted: Sat Jan 05, 2013 6:04 pm    Post subject: Re: Hydraulic lift piston Reply to specific post Reply with quote

Seen this link on O-Ring vs Steel Rings...
Hydraulic Cylinder post

 
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