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Hydraulic leak / woodsplitter

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jshoe

04-16-2002 21:35:22

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I have a hydraulic leak on my woodsplitter. I found out that the guy that borrowed it (yeh, I'm a fool) put hydraulic oil to run the ram where I had transmission fluid, as I was told to do. Was I wrong? was he wrong? what do I do now?

Thanks for the advice.

When you E-mail me, please use "hydraulic leak / woodsplitter" in the subject line. I always delete mail from people I don't know.

Jonathan

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Ninh Hoa

04-17-2002 12:43:21

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Re: hydraulic leak / woodsplitter in reply to jshoe, 04-16-2002 21:35:22

Where's the leak? I agree with rhudson on the oil. Hydraulic oil is intended to be used in a wood splitter application. It's a very simple system. AT fluid lives in a much more complicated application. Many more valve passages, much smaller flow paths. It is thinner and has more anti-corrosion/foaming characteristics than "plain" hydraulic oil.

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rhudson

04-17-2002 06:49:07

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Re: hydraulic leak / woodsplitter in reply to jshoe, 04-16-2002 21:35:22

i don't think the leak was caused by fluid change. is the leak at the rod seal? transmission oil. being thiner than hydraulic oil would probably leaked before the latter. i would think that both would be compatible with your seals although its never a good idea to mix oils.

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jshoe

04-18-2002 23:22:23

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Re: Re: hydraulic leak / woodsplitter in reply to rhudson, 04-17-2002 06:49:07

Thanks to rhudson and Ninh Hoa for the word on the fluid. I'm staying with hydraulic oil. The leak is at the rod seal. I worked the snap ring off the seal, but am having a hard time getting the seal out of the barrel. It only comes out 3/8 of an inch. I don't want to use a pipe wrench for fear of damaging the metal.
It is a Briggs and Stratton splitter and has "CROSS" on the case by the hydraulic handle. Does the seal screw out or just pull out? Maybe I need a special tool.
Thanks for the advice, guys.
Jonathan

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rhudson

04-19-2002 06:04:01

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Re: Re: Re: hydraulic leak / woodsplitter in reply to jshoe, 04-18-2002 23:22:23

Hi JSHOE,

Cross is a hydraulic valve manufacture, can you find a brand name on the cylinder? prince,red lion, etc. is the snap ring holding just the rod packing gland in or the whole rod end of the cylinder? May be an o-ring that is giving you resistance. is it resisting solidly or does it feel like it has some give to it?

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jshoe

04-19-2002 23:25:40

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Re: Re: Re: Re: hydraulic leak / woodsplitter in reply to rhudson, 04-19-2002 06:04:01

can you find a brand name on the cylinder? ----No. The name plate was off when I bought it second hand.

is the snap ring holding just the rod packing gland in or the whole rod end of the cylinder? May be an o-ring that is giving you resistance ----The metal piece around the ram has two holes bored into it for turning. As I turn it, it comes out of the barrel 3/8 of an inch. It will push back in easily, flush to the end of the barrel. It won't go further either way.

Thanks for your interest.

Jonathan

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rhudson

04-25-2002 12:33:03

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Re: Re: Re: Re: Re: hydraulic leak / woodsplitter in reply to jshoe, 04-19-2002 23:25:40

Hi Jshoe,

i'm guessing the resistance you feel on the end cap is an o-ring. there would have to be some type of seal that kept the rod side oil from leaking past the cap threads. some people just pressurise the piston side with compressed air and let the whole piston rod/piston push the rod side cap out. but stay out of the way of it if you use this method. would you mind reposting, i'm too senile to check back four pages for stuff i have posted. Thanks

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