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    Thoughts on main hydraulic pump worn out vs individual cylinder seals bad

    I purchased a used 2007 3540HST 1235 hours, was told it was an ex- USFS rig. Factory FEL and BH900 backhoe. The unit runs good and operates OK, but seems a little underpowered at times. Both FEL and backhoe leakdown, even while running. I thinking the main hydraulic pump seals are bad or worn...