Fixing 4x4 engagement on Kubota L3430

   / Fixing 4x4 engagement on Kubota L3430 #1  

Komrade

Silver Member
Joined
Jul 14, 2014
Messages
213
Location
Western Morgan County, WV
Tractor
Kubota L3430 HST
So the other day I was was driving down the hill in 2wd with a bucket full of stone, tractor started to slide, and in panic I slammed down the 4x4 lever (which didn't work yet produced that unhappy gear sound, I eventually stopped by dropping a bucket)

At the bottom of the hill I engaged/disengaged 4x4 and it "seemed" to work.

In the next few days, I took the tractor onto a dirt slope, and couldn't back out from. 4x4 was not working. I got stuck, and finally got out this morning with the help of the neighbor who was pulling it out by backhoe, while I was pushing with front bucket.

We got it up on "all four" (backhoe arms and front bucket). The 4x4 arm was stuck in 4x4 and not working. Jiggling things around we got it out.
We put it back in and 4x4 started working, then putting it out and in again it wasn't.
We have reached similar results within 10-15 mins we were 'playing' with it. The 4x4 was more often not working than working. Obviously, I can't count on it moving forward, unless i leave it on all the time (current state).
The lever doesn't feel the same either.

Looking for pointers on where to start.

Thank you.
 
   / Fixing 4x4 engagement on Kubota L3430
  • Thread Starter
#2  
bump. have had time to call Kubota yet.

I've engaged and disengaged 4x4 due to needing to spread gravel.
4x4 engages inconsistently, still with unhappy sounds
 
   / Fixing 4x4 engagement on Kubota L3430 #3  
its probably the splinted couple on the driveshaft.
 
   / Fixing 4x4 engagement on Kubota L3430
  • Thread Starter
#4  
Thank you.. but I am not sure I am able to find such a part on the drawings.
Please excuse my mechanical ignorance.. I hope I got the right diagrams from Kubota site.
P.S. I called Kubota Dealer, and they weren't very helpful (said bring it in)
Thank you.

KubotaL3430_Lever.PNG
KubotaL3430_FW_Drive_Shaft.PNG
 
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