L3901 3 point Position Question

[CapnDean]

When I raise the lift all the way up - the Hydraulics are in a bind. Just like when you turn a power steering car hard over and put a bind on the PS pump.

I have to lower my lift down to about position 7 to get it out of a bind. You can feel it in the front loader.....if you pull the lift all the way up you have severe reduction in lift speed/power. On my old farmtrac I can yank that lever all the way up and no issue.

Its not so much a problem as it is an annoyance. Especially when someone else is running it and doesn't realize they need to back off that position lever just a tad. There is a stop that prevents you from going too far, but it does allow the lever to go all the way up into the bind zone. Anybody else have this issue?

 

[mdhughes]

There is a feedback rod that needs to be adjusted, #9 in the image below.

Feedback Rod Adjustment
1. Set the position control lever (1) to the lowest position.
2. Start the engine, and set the engine revolution to idling.
3. Move the position control lever (1) to uppermost position.
4. While pushing feedback rod (9) forward, turn the adjusting nut counterclockwise until the relief valve starts working.
5. When relief valve starts operation, turn the adjusting nut clockwise 2 turns.
6. Tighten the lock nut as holding the adjusting nut not to turn.
7. Set the engine revolution to maximum.
8. Move the position control lever (1) to lowest position.
9. Move the position control lever (1) to uppermost position.
10. Check the relief valve does not operate. If operates, adjust the feedback rod again.
11. Measure the lift arm free play.
12. If measurement is not within the factory specification, adjust the feedback rod length.
* When lift arm free play is large, Lengthen the feedback rod (9)
* When lift arm free play is small, Shorten the feedback rod (9)

 

[CapnDean]

Hey thanks! I'll try to fool with this tomorrow. I suppose the relief valve is what is making the bind sound? Making it where the lift is slow? It's going into relief mode ?

Better put - How does one know when the relief valve is operating? (Probably when the lift is slow and the unit sounds like its in a bind?)

 

[Russell King]

The squealing sound is what alerts me


Sent from my iPad using Tapatalk

 

[SDT]

When I raise the lift all the way up - the Hydraulics are in a bind. Just like when you turn a power steering car hard over and put a bind on the PS pump.

I have to lower my lift down to about position 7 to get it out of a bind. You can feel it in the front loader.....if you pull the lift all the way up you have severe reduction in lift speed/power. On my old farmtrac I can yank that lever all the way up and no issue.

Its not so much a problem as it is an annoyance. Especially when someone else is running it and doesn't realize they need to back off that position lever just a tad. There is a stop that prevents you from going too far, but it does allow the lever to go all the way up into the bind zone. Anybody else have this issue?

If still in warranty, hve your dealer readjust it.

If out of warranty, get a copy of the Kubota service manual and adjust per procedures.

SDT

 

[troverman]

Do you have a rear remote? If so, make sure the remote lever is properly set to one position or the other. Otherwise, you can experience similar issues.

 

[CapnDean]

THANKS MD!!!! It was an easy fix. You're tech article made it easy.

Works like it should now!

 

[CapnDean]

Well it took me awhile to get to it.... THANK YOU MD Hughes! It was easy to do and it solved the problem!

 

[mdhughes]

THANKS MD!!!! It was an easy fix. You're tech article made it easy.

Works like it should now!

Glad you got it working right and that I could help.