I recently purchased a l305 with steering assist. The main problem it had was hydraulic fluid coming out right below the steering wheel. The lift arms were working fine until after I changed the steering seal and then changed the hydraulic fluid and filter. (Note this tractor does not have the suction screen on the transmission/rear differential) The fluid coming out of the steering Rod, just under the steering wheel was very creamy. To me, that was a sign of water in the Hydraulic fluid. After those changes , the lift arms worked for a day or so after that, then they wouldn't lift. I swapped out the filter again , thinking that maybe its getting clogged from water and gunk that remained at the bottom of trans/rear. That fixed it for a couple days again. I tried lifting and lowing the arms (with boxblade attached) a few times in both lower and lift control positions. I believe the tractor was running while doing this. The 3 point started working again maybe almost two weeks. Then it died.
Currently, while the tractor is running, I can put the control in the lift position and raise the arms for 20 seconds, with or without an implement and the arms will remain up for days.
The steering works fine. The hydraulic pump flow goes in just under the seat next to the lift cylinder speed control/lift lock. Then goes to the steering assist block, then an accessory block and finally a relief valve. The arms will remain up under load even with the bolt loosened on the relief valve.
Also I do not have the original hydraulic filter system, It has been replace with a "LENZ" filter system (CP-750-30p) . I replaced the flex line going into the filter system with a clear line, so I could see the fluid. When running , the fluid is cloudy like it has lots of small air bubbles.
There are no noises like a squealing pressure release valve or straining pump. I think the pump gets a little warm at times for not much effort.
Any ideas what could be causing this. I've searched the internet for similar symptoms, but I can't find anything. Maybe I'm not wording my search right. I feel like, if the power steering is working, then the hydraulic pump is at least working well enough that it should pick up the 3 point arms without a load. It almost seems to me like after the pressurized fluid hits the steering it bypasses the normal flow and goes straight to the rear differential and introduces air bubbles by disturbing the fluid. I don't believe its the piston seal/s because once lifted it will hold a 5 foot boxblade.
Currently, while the tractor is running, I can put the control in the lift position and raise the arms for 20 seconds, with or without an implement and the arms will remain up for days.
The steering works fine. The hydraulic pump flow goes in just under the seat next to the lift cylinder speed control/lift lock. Then goes to the steering assist block, then an accessory block and finally a relief valve. The arms will remain up under load even with the bolt loosened on the relief valve.
Also I do not have the original hydraulic filter system, It has been replace with a "LENZ" filter system (CP-750-30p) . I replaced the flex line going into the filter system with a clear line, so I could see the fluid. When running , the fluid is cloudy like it has lots of small air bubbles.
There are no noises like a squealing pressure release valve or straining pump. I think the pump gets a little warm at times for not much effort.
Any ideas what could be causing this. I've searched the internet for similar symptoms, but I can't find anything. Maybe I'm not wording my search right. I feel like, if the power steering is working, then the hydraulic pump is at least working well enough that it should pick up the 3 point arms without a load. It almost seems to me like after the pressurized fluid hits the steering it bypasses the normal flow and goes straight to the rear differential and introduces air bubbles by disturbing the fluid. I don't believe its the piston seal/s because once lifted it will hold a 5 foot boxblade.