Hot hydraulic fluid + loss of cylinder pressure

[Pete in FL]

I've got a 3 pt hitch log splitter running off the loader control valve system on a B7510 Kubota. Been working fine for several years. This year after about an hour I noticed the hoses are real hot and the cylinder's lost both speed and power. FEL works fine. Fluid level is normal. Any thoughts would be greatly appreciated.

 

[J_J]

Check cyl seals for bypassing, and check the return filter.

Put a hyd gage in the IN port and check the pressure.