L3940 Rear Remote hydraulic leak

   / L3940 Rear Remote hydraulic leak #1  

JPVV

New member
Joined
Apr 30, 2018
Messages
20
Tractor
Kubota L3940
Hello! I was using my hydraulic log splitter this past week on my Kubota L3940 and experienced a hydraulic fluid leak. The leak is from the left female quick attach coupler on my rear remote and the fluid sprays out all over when I activate fluid pressure.

It started when I had been using the log splitter for about 20 minutes. There is no leak when there is nothing attached to coupler. The leak only happens to one of my couplers and it doesn't matter which male coupler is attached to it - same coupler leaks.

Can anyone give me a hand diagnosing the problem or what to try?

Thanks!
 
   / L3940 Rear Remote hydraulic leak #2  
Hello! I was using my hydraulic log splitter this past week on my Kubota L3940 and experienced a hydraulic fluid leak. The leak is from the left female quick attach coupler on my rear remote and the fluid sprays out all over when I activate fluid pressure.

It started when I had been using the log splitter for about 20 minutes. There is no leak when there is nothing attached to coupler. The leak only happens to one of my couplers and it doesn't matter which male coupler is attached to it - same coupler leaks.

Can anyone give me a hand diagnosing the problem or what to try?

Thanks!

I think a very careful examination will reveal a crack

Dave M7040
 
   / L3940 Rear Remote hydraulic leak
  • Thread Starter
#3  
Ok - will look again. I assume you mean crack in female part of coupler and in a place that would only leak when male is inserted? Thanks!

Edit: I looked in female part of quick attach and couldn't see anything like a crack - there are some seams that could have a crack that would be hard to spot. Are you guessing a crack because it sprays? I have done a search and found that o-ring could be at fault - haven't seen anyone mention fluid spray with those though...
 
Last edited:
   / L3940 Rear Remote hydraulic leak #4  
It's the o ring.
 

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