Jd 6800 3/4 return

[dgjeynes]

Where can I plumb a 3/4 return into the trans on our 6800, need one to run my post knocker on

 

[Mur Huwcun]

JDs usually use the bung above to the right of PTO shaft, metric thread from memory, could be M22

 

[dgjeynes]

Without looking at it I’m fairly certain the 00 series don’t have that bung

 

[Will 1594]

Just done 6900 today ,will take pic in morning ,if you want 3/4 ,you will have to change spool couplings to standard qr couplings so 3/4 will fit down side

 

[dgjeynes]

Ideal that would be great

 

[Phil P]

There’s two bungs in the hitch valve no1 in the picture, I’m pretty sure it’s the one on the right as you look at at from the back. However It’s a while since I've fitted one to a 00 series so just check there’s no pressure there as one is pressure and one return.

If you’re hitch valve has been replaced you’ll have the updated 20 series one with an extra slice. In which case it’s the lower/middle bung

 

[Will 1594]

6900

 

[dgjeynes]

Ideal cheers will, any idea what size all those fittings are our hitch is currently plumbed straight into that spool slice

 

[Phil P]

M22

 

[C.J]

Ideal cheers will, any idea what size all those fittings are our hitch is currently plumbed straight into that spool slice

You only need the big fitting on the left , which is a 3/4" QR female coupling with a 3/4" to M22 x 1.5 , M to M adapter.

Its questionable whether there is any advantage in using a 3/4 Q.R.C because of the restriction in the M22.

I have a 1/2" male qrc on my low pressure return , so the m and f can be coupled together on the machine when not in use and the flow through the spool block is always in the right direction.

 

[dgjeynes]

Thanks all for the replies fitted it last night and was a success today running my post knocker