Hi Dano From what I can make out you seem to be saying the loader and hoe have a pressure valve each. it would be unusual to have both valves weak and loader and hoe to both be bad with that, unless there is junk or rust in them or both springs are weak or something .
I'm kinda thinking pump. But the only way to really go, is find a guy that can do a pressure and flow test with the oil hot. There are pressure and flow figures at so many rpm's on the motor for these tests, but I don't know what the outputs are for your machine so that needs finding out.
You can just test pressure that is what you need to lift or dig. flow will just mean it moves slower than it should. But if your gonna do one do the other and then you know if the pumps heading south and if it's needing replacement soon!.
They should be able to do pump outputs on it's own and then test the block output to the rams to see if the pressure relief is right also if the pump checks out good. This would be my next move with it then it takes all the guessing out and narrows it right down.
This will cost money but the gauges and parts are expensive to test it. if you only use the stuff once doing it your self. Plus you need to know what your doing oil under high pressure is dangerous, and you can damage parts too!. I'm just buying the test equipment as I need it more in my shop, and it will be $400 cheap way and probably over $1000 for the more expensive stuff so a couple hundred in someones pocket might be cheap with the knowledge too!. Regards Robert
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