Hydraulic problem

   #1  

Baldbull68

New member
Joined
Mar 13, 2021
Messages
1
Tractor
Kubota L2250
I have a Kubota L2250 is has no problem curling the bucket but is weak lifting the bucket also no problem with 3 point hitch lifting any suggestions
 
   #2  

Tx Jim

Super Member
Joined
Jan 26, 2007
Messages
8,828
Location
Coyote Flats,Tx
Tractor
JD 4255/Kubota M7040 HDC
Welcome to TBN
I suggest to check system pressure which should be 2275 psi. How long since hyd filter was changed?
 
   #4  

Roadworthy

Veteran Member
Joined
Aug 24, 2019
Messages
1,746
Location
Southeast Washington
Tractor
Kubota L2501 HST,
It could be fluid flow, volume, or pressure as suggested. If all else fails you could have internal bypass leakage in one or both lift cylinders.
 
   #5  

oldnslo

Elite Member
Joined
Jan 20, 2010
Messages
4,821
Location
Northern, IL
Tractor
Branson 2400H, JD X540
Does it sound like tractor is straining while attempting to raise the loader. I.e. similar sound like when curl cylinders hit end of travel

if yes you potentially have a quick disconnect failing which is restricting flow one one of lift circuit lines.
 
   #6  

Doc G

Bronze Member
Joined
Feb 22, 2021
Messages
52
Location
Waco, Republic of TX
Tractor
Kubota L3200
Any resolution to this?

Broadly speaking (if you've established that you have correct pressure), then either there is a leak, in which case the cylinder won't move but the hydraulic pump will not labor or go into pressure relief. Or there is a blockage, like oldnslo says, in which case the cylinder won't move but you'll hear the pump laboring and the pressure relief valve hissing. I've experienced blockage on my lift circuit's "down" direction.
 
 
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