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Well, you'll forgive me for saying that it might be wiser - and cheaper - to find out what the problem is before simply replacing parts willy-nilly. In approximate order of likelihood, the following are the usual reasons for reluctance to lift a heavy implement, for the 9N/2N system: Ram cylinder/piston leaks
Control linkage adjustment/wear/damage
Gasket leaks (pump to case, case to cover, cylinder to cover)
Check/relief valve failure
Control valve spool damage/wear
Pump check valve wear/failure
Other pump wear/damage Before replacing anything, you should do the simple diagnostic tests (search the archives for many versions and tips on how to do this) and the replace/repair things based on evidence of failure. There is no filter of any sort. Excess fluid will have no effect on the hydraulic system. The oil being a reddish color may, or may not, indicate a problem. Some brands of 134-equivalent oil have this color. What is a problem is opacity or "milkiness" of the oil, indicating entrained water. Diagnose the problem before opening your wallet. llater, llamas
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