wood splitter has no pressure after changing hydraulic oil. ideas?
Air has been bled out. Suspect pressure relief valve. the return stroke woors well.
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Comments
need more info please
could be a lot of things.
why do your say it has no pressure? did u check it with a gauge or is the Cyl. just not moving?
was it working before u changed the oil? why did u change the oil?
could be in the valve itself, seals in the Cyl gone bad, has it sat for a long time? seals dry out over time. could be relief valve try taking it out and check for dirt, some types u can try with the valve removed to see if cyl will move, try that.
take hyl. oil hose off bottom of cyl aim it in bucket and carefully move valve, is there oil?(should be lots) if not must be in valve or pump
that happend to my dads too
he had to take it apart and fix the converter or something i don’t really know the correct name!
but i would examine the insides of the motor some more!
Good luck
the pump could be going bad
Not enough detail in your question so I’ll go out on a limb with this one. The fact that the malfunction occurred after the replacement of fluids lead me to suppose there isn’t a mechanical failure occurring. If that being true, there’s only a few items to double check. The first being;
Did you use the specified type fluid required by the manufacturer. This can be significant due to different compressibility factors with various fluids.
Check the line from one end to the other for leaks, constricted lines or filters. If there is an in-line filter and not replaced. you must flush out the lines completely. Any contamination in the fluid will result with what you got. Make sure you replace gaskets/o-rings. If the existing fluid was contaminated by particulates. Sometimes from not giving it a good douche a particulate can travel and get trapped in a valve preventing good fluid pressures. This is most likely the cause. This can include biological contaminates as well. If the fluid is not synthetic anaerobic(non-oxygen supported) bacteria can grow inside. This can raise hell. Be sure to use a flush. Not just hydraulic oil. If is a bio contamination, dissolving and eliminating the bug is essential or you’ll develop problems again.
Sometimes a bubble can get trapped somewhere (usually in a high point). Good luck, Zip
As a prior Mechanic the best thing to do is sale and buy a new one.