3rd function question

   / 3rd function question #1  

Navvet

Silver Member
Joined
Nov 25, 2017
Messages
181
Location
NC
Tractor
Mahindra 4025 Bobcat S185 John Deere X495 John Deere 6x4 Gator
Please excuse me if this has already been asked/answered, I've been looking around and haven't seen anything like this.

I am looking to add a third function to the FEL (grapple) as well as the backhoe (thumb). Can I "T" the lines to give a connection for both the front and the back from the same solenoid controlled valve ?

I can't imagine a time when both would be used at the same time so the hydraulics shouldn't be a problem.

I will say I am a fair shade tree mechanic but know very little about hydraulics.
 
   / 3rd function question #2  
your valve body should have another port that send fluild to your other remote valve ,
 
   / 3rd function question #3  
Yes, you can tee the work ports of the 3rd function valve as long as you only have only thing plugged in at a time, grapple OR thumb, thumb OR grapple.
 
   / 3rd function question #4  
Yes, you can tee the work ports of the 3rd function valve as long as you only have only thing plugged in at a time, grapple OR thumb, thumb OR grapple.
Nailed it.

IF you have them BOTH hooked up, they will BOTH try to close or open at the same time. Gotta unplug the QD's for whichever one you arent using. Then they would act as plugs and allow full pressure to whichever one you still have hooked up
 
   / 3rd function question #5  
I did the same when I added third function to my JD 6415 mid valve. A pair on the loader for a grapple and a pair to the rear for?
 

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