4105 Fluid leak when running PTO

   / 4105 Fluid leak when running PTO #1  

1M05

Member
Joined
Mar 21, 2017
Messages
49
Location
Dundee, NY
Tractor
1979 Yanmar YM2000BD 2013 John Deere 4105
IMG_20170714_154503075_HDR.jpg

When I run the PTO, hydraulic fluid leaks from this hole. If I don't run the PTO, no fluid leaks. Is this a breather? Should something be in this hole?

Thanks
 
   / 4105 Fluid leak when running PTO #2  
Looking at the schematic for the tranny case of the 4105, is it possible that the "cap" key #10 is missing?
Part # M808502
 

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   / 4105 Fluid leak when running PTO #3  
Looks higher up to me. Possibly #5 & #6 Plug and O-Ring.

Is the hole threaded?

You will need to top-up your transmission oil.

:wrench:
 
   / 4105 Fluid leak when running PTO
  • Thread Starter
#4  
Looking at the schematic for the tranny case of the 4105, is it possible that the "cap" key #10 is missing?
Part # M808502

I think that is it. Thanks! I just got the tractor with 100 hours on it. I have to figure out if the cap fell out, was never installed, or if the transmission case is building pressure and blew it out.
 
   / 4105 Fluid leak when running PTO #6  
Don't hold your breath Frank...
:wrench:
 
   / 4105 Fluid leak when running PTO #7  
I won't. I know there have been several threads about how not letting the group know about the results of problem solving went. When someone helps me I can't wait to thank them for expanding my knowledge and feel it is a partial payback because then others know the solution.

Frank
 
   / 4105 Fluid leak when running PTO #8  
Totally agree. :thumbsup:
:wrench:
 
   / 4105 Fluid leak when running PTO
  • Thread Starter
#9  
I installed the plug. It just pushes in with your finger. I guess the rubber coating is supposed to hold it in? Ran the brush hog for 4 hours today and about an hour yesterday. No leaks.
 
   / 4105 Fluid leak when running PTO #10  
Good news and better late than never.
Thanks for update.
"...pushes in with your finger." does seem a bit too easy for a sealing plug but :confused3:
 

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