L4310, add float function to FEL

   / L4310, add float function to FEL #1  
H

hoffmtc

Member
Joined
Oct 9, 2019
Messages
47
Tractor
Kubota L4310 HST 4WD
Using the new-to-me L4310 this past weekend and I realized that this tractor's front end loader does not have the float function.

Is that a control valve block that can be replaced to include the float function?
 
   / L4310, add float function to FEL #2  
I’d be surprised if it didn’t have it already. Sometimes it can be hard to engage especially if the previous owner never used it.
 
   / L4310, add float function to FEL
  • Thread Starter
#3  
I can try again, but sure didn't seem like it wanted to go....
Tractor was made in 2000 I believe. When did they start with the float valves?
 
   / L4310, add float function to FEL #4  
Try pushing the loader handle up should stay locked up in float
 
   / L4310, add float function to FEL #5  
The float on my old L4630 would only engage if I held the lever forward. I never attempted to diagnose the issue which was likely in the valve body.
 
   / L4310, add float function to FEL #6  
" When did they start with the float valves? "

I believe it was when they made the 1st loader.

" I never attempted to diagnose the issue which was likely in the valve body."

The float control is in the can at the end of the spool, not the valve body.
 
   / L4310, add float function to FEL
  • Thread Starter
#7  
I believe my tractor has the LA681 loader. Here is the diagram for the control portion of the LA681.
Kubota LA681 (FRONT LOADER) Parts Diagrams

So if my lever does not want to 'float function', I should be checking the can(s) at the bottom of the block?
thanks for the info!
 
   / L4310, add float function to FEL #8  
Go to the CONTROL VALVE [COMPONENT PARTS] look at parts A you well see 5 balls and 2 springs one for the balls and 1 to put in N.
Most of the time it is just rusted and dirty, could be a broken spring. If you take it apart make sure you watch out for the balls, maybe wrap a rag around it catch them. The bigger ball push the little one out, just in case you get mixed up. Have at her!! easy fix.
 
   / L4310, add float function to FEL #9  
hoffmtc said:
I can try again, but sure didn't seem like it wanted to go....
Tractor was made in 2000 I believe. When did they start with the float valves?
Click to expand...


MY 1974 JD 2030 with JD 245 loader has float. Yours should too.
 
   / L4310, add float function to FEL
  • Thread Starter
#10  
Thanks for the tips! Good to know that I have a function I like to use, just needs some attention.
Do you lose much fluid when taking this apart?
 
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