FYI,
I was unable to remove the end cap of the hydraulic cylinder so my Kubota dealer rebuilt it.
When I picked up the cylinder they had a note by the mechanic saying that my hydraulic oil had LOTS of water in it.
So today I replaced the hydraulic fluid, filter and cleaned the metal screen filter. The inner liner on the replaceable filter was distorted, either by hydraulic pressure or the water in the hydraulic fluid froze and broke the inside of the filter (so I'm really not sure if the filter was filtering at all).
Just a word to the wise, that simple maintenance can save you hundreds if not thousands of dollars down the road.
My BX2230 has just over 600 hours on it and I did replace the hydraulic fluid at 50 and 300 hours on the clock.
Regards
Jeff