Loader Stiff Loader Valve Control

   / Stiff Loader Valve Control #1  

Kelsir66

Member
Joined
Apr 13, 2012
Messages
35
Location
Owingsville, ky
Tractor
Kubota B2920 TLB
My B2920 loader valve is very stiff to operate. It is difficult to do fine adjustments when in tight places or heavy loads. Are there any way to adjust the loader valve to make it operate smoother and easier? My BX2660 was so smooth and easy. Thx.
 
   / Stiff Loader Valve Control #2  
I find the same thing with my B2620.I tried lubing the linkage but it didn't make any difference.My previous L3240 was very smooth but I find the 2620 to be not as user friendly.I will be interested to see if anyone has a solution.
 
   / Stiff Loader Valve Control #3  
How difficult is it to access the control valve on the B2920? If relatively easy try disconnecting the valve from the linkage and see if the joystick moves freely or still binds. If it move freely try to move the spools in control valve by hand to see if they feel like they are binding. Once you have determined which component is binding then you can start eliminating possible friction points.

On the control valve is it possible these tractors or valves sat on a lot and got water in the spring centering assembly causing them to rust?

On the linkage, is one of the pivot points caulked or twisted causing the assembly to bind?

On my Branson the joystick ball joints looked like this from the factory.
 

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   / Stiff Loader Valve Control
  • Thread Starter
#4  
I actually worked with mine last night before I posted. Everything with the valve was clean and no rust anywhere. My tractor has only 20 hrs on it and the dealer had to order it when I put in my order. I had seen two B2920' s on another lot before I ordered mine and one was really smooth and the other was stiff like mine. Unfortunately, mine came in with a very stiff operating loader valve. I did spray lube on the valve to see if it would help but it didn't make any difference.
 
   / Stiff Loader Valve Control #5  
Is the valve stiff only under pressure or all the time?
 
   / Stiff Loader Valve Control #6  
I can't speak for the OP but on my 2620 the valve is stiff all the time,whether the tractor is running or not.
 
   / Stiff Loader Valve Control #7  
Are your valves cable operated, or lever operated?

If both spools have about the same resistance, the I would think the spools are tight due to the centering springs used.

You might remove the spools and see if there is any debris in the spool.

Are the levers any different from one valve to another, or same length, etc?
 
   / Stiff Loader Valve Control
  • Thread Starter
#8  
Mine is very stiff whether it is running or not. You cannot feather the control. Mine has no cables.
 
   / Stiff Loader Valve Control #9  
Are your valves cable operated, or lever operated?

If both spools have about the same resistance, the I would think the spools are tight due to the centering springs used.

You might remove the spools and see if there is any debris in the spool.

Are the levers any different from one valve to another, or same length, etc?
After having another look at my control valve I would guess the centering springs are causing the stiffness.I don't feel any friction or binding in the linkage,just the lever returning to neutral with quite a bit of force.If it is caused by stiff springs,is there any thing that can be done about it or will it loosen up over time with usage?To the OP,I am not trying to hijack your thread,just trying to find a solution for everyone.
 
   / Stiff Loader Valve Control
  • Thread Starter
#10  
Hey. No problem at all. I just wonder if they may have different selection of springs. I looked at two new B2920's on the same lot and both were completely different feel. If there are replacement springs with different tensions, I want the lighter ones. I'll work with mine again next week. I may call the dealer also next week and see if it may show options on the springs. If I find a fix, I'll sure let you know.
 

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