Diff lock not working

   / Diff lock not working #1  

dnw64

Veteran Member
Joined
Feb 13, 2017
Messages
1,511
Location
SE Vermont, South Jersey
Tractor
Kubota B3030 Cab
...apparently. I.e. only one wheel spins when "engaged".

Where do I look, or can I, to find out what the issue might be?

B3030
 
   / Diff lock not working #2  
...apparently. I.e. only one wheel spins when "engaged".

Where do I look, or can I, to find out what the issue might be?

B3030
Linkage from the actuator pedal. Maybe bent or disconnected?
 
   / Diff lock not working #4  
You sure it was engaged when only one wheel was turning? Many tractors have little to no indication as to whether the rear differential lock has engaged or not. On most of mine, with my heel pressure downward on the pedal hard, the wheels have to turn a small amount and the engagement pedal then goes down further when it actually engages.
 
   / Diff lock not working
  • Thread Starter
#5  
You sure it was engaged when only one wheel was turning? Many tractors have little to no indication as to whether the rear differential lock has engaged or not. On most of mine, with my heel pressure downward on the pedal hard, the wheels have to turn a small amount and the engagement pedal then goes down further when it actually engages.
I understand it may not be immediate, but yes, I have let the wheel spin more than half a turn, the pedal is touching the floor, and nothing changes. I will look at the linkage. Don't know why I didn't think of that before, d'oh!
 
   / Diff lock not working #6  
Have you engaged the diff lock with one wheel spinning and the other standing still? If so you may have destroyed the diff lock.
Diff lock on small tractors is a mechanical positive engagement device. There are either pins the slide into holes or dogs that lock into the differential cage to lock the differential.

Hopefully you will be lucky and find an external cause for it not to work.
 
   / Diff lock not working
  • Thread Starter
#7  
Have you engaged the diff lock with one wheel spinning and the other standing still?
I didn't, and wouldn't. I have "mechanical sensitivity". But it's certainly possible that the PO did. I bought it 12 years old with 600 hours...
 
   / Diff lock not working
  • Thread Starter
#9  
Sounds to me like the origional owner echered it.
Never heard of Escher in that context. Normally it's
Escher1.jpg


Be apprised, the fix is expensive.
If it's broke internally, ain't gonna fix it. Be nice to have, but not paying big bucks for it.
 
   / Diff lock not working #10  
Never heard of Escher in that context. Normally it's
View attachment 3801269


If it's broke internally, ain't gonna fix it. Be nice to have, but not paying big bucks for it.
Im thinking eshered is a convoluted typo of sheared. Probably AI involved.
 

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