Loader JD 790 with 70 FEL Color Connection to Numbers

   / JD 790 with 70 FEL Color Connection to Numbers #1  

o2bHiskid

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Aug 27, 2011
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Tractor
JD 790 with 70 FEL
I messed my coding up after taking my loader off; now I am paying the price.

I have a 70 FEL that has color coded connections, but my 790 tractor only has numbered connections (1 - 4). Could someone please tell me what colors go to which numbered connectors? I promise to be more careful next time!

Amy
 
   / JD 790 with 70 FEL Color Connection to Numbers #2  
The good thing is those hoses are routed and bundled (well, at least mine were) so they pretty much fall into place. Also, they do not cross over one another...pretty much a straight shot.
So, plug them in as they fall into place, start your tractor and, at a low idle, operate your loader control stick. Forward is lowering the loader, back is raising the loader, to the left is curl and to the right is dump.
If that's how it moves, all is good and you're done.
If the loader/bucket doesn't move correctly, pick ONE (mark this with a wiretie) hose and swap with another, then see how the loader operates. Still not working right, move the ONE (wiretied) hose again and see what happens. Once a movement matches the stick function (add a second wiretie so you don't move it again!), pick a second hose (again, wiretie it)...you'll have two possibilites (do not move the first wiretied hose!!) and continue the process. It might take a half hour or so, but be focused and consistent (never move a hose when you have a correct function!) and you'll be OK.

I used four different color wireties to label my hoses when the color coded caps wore out. Use a same color wiretie on the corresponding male and female hoses.
 
   / JD 790 with 70 FEL Color Connection to Numbers #3  
I used a centre punch on each connection using different number of punches for each end of the coupling.:)
 
   / JD 790 with 70 FEL Color Connection to Numbers #4  
I have a JD770 with a model 70 FEL. I am 99.999% sure the coding with be the same for your JD790.

1-Yellow
2-Gray
3-Black
4-Green
 

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   / JD 790 with 70 FEL Color Connection to Numbers #5  
I have a JD770 with a model 70 FEL. I am 99.999% sure the coding with be the same for your JD790.

You're right, but I think she may not have the color coding (caps) on her hoses.
 
   / JD 790 with 70 FEL Color Connection to Numbers #6  
Roy,

I just reread her post. I think her loader's hydraulic lines are color coded but she is looking at the numbers on the diagram on the right fender by the loader handle that doesn't show the color code.
-------------------------------------------------------
Amy,

The number and color code diagram shown in my picture is to the left (left when sitting in the tractor seat) of the tractor's four female hydraulic outlets underneath the clutch pedal that your loader plugs into. However, it is possible that the diagram has worn away on your tractor.

Bruce
 
   / JD 790 with 70 FEL Color Connection to Numbers #7  
Roy,

I just reread her post. I think her loader's hydraulic lines are color coded but she is looking at the numbers on the diagram on the right fender by the loader handle that doesn't show the color code.
-------------------------------------------------------
Amy,

The number and color code diagram shown in my picture is to the left (left when sitting in the tractor seat) of the tractor's four female hydraulic outlets underneath the clutch pedal that your loader plugs into. However, it is possible that the diagram has worn away on your tractor.

Bruce

Possibly...let's see how she responds...
 
   / JD 790 with 70 FEL Color Connection to Numbers
  • Thread Starter
#8  
Thank you so much for all the great info. I will give it a try today. My connection numbers - on the tractor - did not have colors - they have just black numbers on green paint. I appreciate all your help!

Amy
 
   / JD 790 with 70 FEL Color Connection to Numbers
  • Thread Starter
#9  
It worked! Thanks for all your help. It is such a blessing to know that there is so much brain power and kindness out there...
 

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