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Hydraulic cylinder repair


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  #1  
Old 11-19-2008, 06:42:27 PM
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Tom Jamboretz Tom Jamboretz is offline
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Default Hydraulic cylinder repair

I have an old logsplitter with a cylinder problem. The real problem is getting into the cylinder as both ends are welded to barrel. How can I go about opening it to repair packing and rings on the piston and then re-assembling it?

Thanks, TJ
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Old 11-19-2008, 08:01:52 PM
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Craig A Craig A is offline
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Default Re: Hydraulic cylinder repair

The gland (where the shaft goes) might be screwed in, you might have to drive the gland in to reveal a hidden round snap ring or check to see if there a small hole in the barrel at that end for a retainer wire.
MANY power steering cylinders have to be cut open in order to repair them.
I've never SEEN a splitter cylinder that can't be taken apart.......you don't say HOW old but I'm sure manufacturers are trying to make things as cheaply as possible.......so that can't be ruled out either.
It MIGHT be the back end needs to be cut off to get the cylinder apart.
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Old 11-19-2008, 09:55:26 PM
K D Redd K D Redd is offline
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Default Re: Hydraulic cylinder repair

I am for all efforts for repair BUT it may be WAY cheaper to replace the cylinder that is made to disasseble and be repaired in the future.

Kent
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Old 11-22-2008, 09:25:27 PM
Richard W. Richard W. is offline
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Default Re: Hydraulic cylinder repair

A picture would help so we know how it's built.
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Old 11-24-2008, 07:02:26 PM
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Default Re: Hydraulic cylinder repair

Gentlemen,

Here are photos of the problem cylinder. As you can see bothe ends are welded. It is held in place by 2 clamps. TJ
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Old 11-24-2008, 07:10:34 PM
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Default Re: Hydraulic cylinder repair

Look's like you need a new ram....
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Old 11-24-2008, 07:31:09 PM
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Default Re: Hydraulic cylinder repair

Looks like another problem is finding a cylinder that will fit where it needs to fit.
Cutting the bottom end out is easy enough.
If there any O-rings in the gland end or piston replace them with poly U-cups which are WAY more durable and hone out any spots on the ram that might damage the packings.
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Old 11-24-2008, 07:48:33 PM
Ray Freeman Ray Freeman is offline
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Default Re: Hydraulic cylinder repair

If there is access to a lathe just part off the end,do the required resealing and weld it back on. No lathe,just cut it off with whatever. Just do a weld prep so you get a good weld in there.
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Old 01-11-2009, 05:11:00 PM
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Smile Repair of logsplitter hydraulic cylinder

Some may remember I posted my questions on repair of a hydraulic logsplitter cylinder awhile back. Well I follow most of the advice. And all is well. I put the welded cylinder in my Southbend 9" lathe and slowly cut through the weld at the base. Took the parts to a hydraulic repair shop and he set me up with the rubber parts . He said they don't get many welded cylinders, but do repair them the same way.

Thanks to all who responded to my questions. Tom Jamboretz
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Old 01-11-2009, 07:09:54 PM
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Default Re: repair of logsplitter hydraulic cylinder

Another "HAPPY" Harry's customer . I love it when it works .
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