This has been an issue with my tractor id say for a couple years now, i just havent had anytime to try to chase this down. I really havent used the 3 point much, primarily my front end loader. however i just aquired a 50" buhler snowblower recently and well i cant use it now! From a cold start about mid RPM to wide open the 3 point with weight works fine, however once is seems the fluid starts warming up thats when it barely will lift anymore to the point it just doesnt lift at all. you can hear it trying but just nothing. I replaced the piston seal a couple years ago thinking that was the issue, but it never resolved. i pulled the priority and pressure relief valve the other day to check them and all looked ok. i am waiting for a metric adapter to get here to check the pressure by the piston per shop manual. however i checked the pressure coming into my FEL valve the other day and i got around 2100 which seems high but idk how accurate that guage is! To me it seems the pump and valving is fine because my power steering and FEL always are working fine. Only thing i can come up with is when the fluid starts thinning out, it just seeps past that cylinder seal. any other thoughts on this? thanks
bx1800 3 point wont lift only after warmed up
- Thread starter John W
- Start date
armylifer
Well-known member
Lifetime Member
Equipment
BX1860, FEL, RCK54P MMM, BB1548 Box Scraper, Quick Hitch, Piranha Bar, BX6315
How long has it been since you changed the hydraulic fluid? It sounds like it works well until the fluid viscosity gets thinner with heat. That is a sign of worn out hydraulic fluid.
xrocketengineer
Well-known member
Lifetime Member
Equipment
BX1880, FEL, Grapple, 36 in. Forks, 48in. MMM, Quick Spade, Ripper
It has been a while since i changed the fluid, i actually am adding fluid fairly often because my FEL valve leaks. my Loader is a old farm hand 141 i modified to fit my frame. i have been adding JD hygard because that was all i could get locally at the time which i was told was similar! are these machines that particular they need to run the kubota udt? as for doing a complete fluid change is there a way to get all the fluid out? draining loader cylinder lines and such? or is that overkill
I can answer one of your questions... Yes, from past posts about hydraulic fluid--and things not working when adding something different, it seems that it does make a big difference.
Probably worth changing it, maybe your problem will be solved. If not, worse case you have new fluid.