gresen hydraulic J6 valve

   / gresen hydraulic J6 valve #1  

lazybum

New member
Joined
Sep 18, 2011
Messages
6
Tractor
JD 3020
I have Gresen hydraulic J6 valve controlling my Du-al loader

it has always been leaking today I noticed it looked like it was coming out of the center plug. i figured it needed an o ring

removed it an did not have an o-ring to fit

reinstalled it an it sheared right off. possibly was cracked before, because i did not put much force on it


gresen is now owned by parker and i can not find any info to get a new plug


thanks
 
   / gresen hydraulic J6 valve #2  
How about a picture. What center plug?

Is is leaking on the end of the valve , or the port between the work ports.
 
   / gresen hydraulic J6 valve
  • Thread Starter
#3  
How about a picture. What center plug?
Here is a pic of the valve

I also found another casting number 822
 

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   / gresen hydraulic J6 valve #4  
I believe that is your load check valve to keep the load from shifting as you move the levers.

Are those 90 degree fittings galvanized fittings? If so, not a good thing.
 
   / gresen hydraulic J6 valve
  • Thread Starter
#5  
So where can i find a load check valve cap?

Yes they are Galvanized fittings
that is the way i got the tractor
what is bad with it and how should I fixit?


Thanks for your time and info!

I believe that is your load check valve to keep the load from shifting as you move the levers.

Are those 90 degree fittings galvanized fittings? If so, not a good thing.
 
   / gresen hydraulic J6 valve #6  
lazybum; said:
So where can i find a load check valve cap?

Yes they are Galvanized fittings
that is the way i got the tractor
what is bad with it and how should I fixit?


Thanks for your time and info!

Just remove those fittings, and replace with hyd fittings, as those pipe fittings are only rated for low pressure.

As far as the cap, you might have to get that from Gresen. It might have a function other than a cap.

If you take it to a hyd shop, they might be able to find a cap for you or tell you where to get one.
 
   / gresen hydraulic J6 valve
  • Thread Starter
#7  
Thanks!!

It is a low pressure pump mounted on my pto shaft and all the lines on the loader are cast iron pipe too

so maybe I am safe?




phil
 

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