HST filter blowing out

[gnbvt]

Hi all, this is my first post and its a doozy. What could be building so much pressure that its blowing out my hydraulic filter? happened 2 years ago, changed the filter and refilled and was fine until this spring. Then in June it happened again, I put on a new filter and refilled the fluid started the tractor blew out in 10 seconds. I cleaned all of the relief valves and the wire mesh screen changed the filter again, refilled started was fine for 2 weeks and blew out again. I'm stumped and its starting to add up between filters and fluid. Tractor is about 20 years old is a BX 2230D. Would greatly apreciate some guidance.

 

[GeoHorn]

Are you using Genuine Kubota Filters?

 

[JonM]

use an actual kubota hydraulic filter. you cant use a cross refwrence filter from another brand. high pressure hydraulic filyera are not like oil filters

 

[Mountainman]

Ill also add some filters are suction filters and some are pressure filters. Makes a big difference and bx is a pressure filter. Best to use oem if your not