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Tieing into hdraulic lines on JD 720

B

blinwmiaol.com

Member
I am putting a loader on my Deere 720 and am trying to figure out the best way to tie into the hydraulic system. I do have dual hydraulics on the tractor but don"t really want to tie up ports. I have thought of having my welder T into both steel lines but was wondering if there was a better option. Is there such a thing as a slip on connection like is used in PEX plumbing? Seems like the slip in connections are becoming popular for several things, just didn"t know if the idea was aplicable for low pressure hydraulics. Thanks
 
We used stainless tees made by Swagelok to tee into brake line's on military vehicles so we could measure the brake pressure during stopping.
You could probably use these to tee into your hydraulic lines. We did these brake tests in Jennerstown PA and never had any leaks. Hal
a54433.jpg
 
I would use single braided hose depending on your pressure. You can buy those stainless tees
with one port that's female pipe thread and use JIC steel tube fittings. Have swivel nuts installed on the hoses. I made this hose for my garden tractor's hydraulic lift using reuseable swivel nuts. Hal
a54435.jpg
 
Does your loader have a hydraulic bucket? I have a 630 with a JD 45 loader, and I'm "planning" to plumb a toggle valve between my stock control valve and the female couplers. It can be done with off the shelf rubber hoses and fittings, but a simple mounting bracket would have to be custom built. It would fit nicely in front of my left brake pedal. It would be removable - no permanent alteration to the tractor or steel lines. My loader has a trip bucket so only one would be needed. If yours is a hydraulic bucket it might be impractical.

Here's a link to the part.
from Northern Tool
 
(quoted from post at 12:18:20 11/22/11) I am putting a loader on my Deere 720 and am trying to figure out the best way to tie into the hydraulic system. I do have dual hydraulics on the tractor but don"t really want to tie up ports. I have thought of having my welder T into both steel lines but was wondering if there was a better option. Is there such a thing as a slip on connection like is used in PEX plumbing? Seems like the slip in connections are becoming popular for several things, just didn"t know if the idea was aplicable for low pressure hydraulics. Thanks
Click to expand...

How is T'ing into both the pressure and return lines of an open center hydraulic system going to operate a loader ?
 
(quoted from post at 12:18:20 11/22/11) I am putting a loader on my Deere 720 and am trying to figure out the best way to tie into the hydraulic system. I do have dual hydraulics on the tractor but don"t really want to tie up ports. I have thought of having my welder T into both steel lines but was wondering if there was a better option. Is there such a thing as a slip on connection like is used in PEX plumbing? Seems like the slip in connections are becoming popular for several things, just didn"t know if the idea was aplicable for low pressure hydraulics. Thanks
Click to expand...

How is T'ing into both the pressure and return lines of an open center hydraulic system going to operate a loader ?
 
Buick, you seem to have forgetten your condescending and derogatory comments that I refuted on the Deere page a few months back. The loader, Deere 720 off a 2010 Industrial, is now mounted on my 720 diesel. The loader and its joystick controls are both open center. You seem to have forgotten that the 2010 hydraulics are almost identical to the 720's, in flow, pressure and being open center. But thanks for your help in answering my question about an easy way to tie into the 720's hydraulic lines.
 
(quoted from post at 13:16:02 11/23/11) Buick, you seem to have forgetten your condescending and derogatory comments that I refuted on the Deere page a few months back. The loader, Deere 720 off a 2010 Industrial, is now mounted on my 720 diesel. The loader and its joystick controls are both open center. You seem to have forgotten that the 2010 hydraulics are almost identical to the 720's, in flow, pressure and being open center. But thanks for your help in answering my question about an easy way to tie into the 720's hydraulic lines.
Click to expand...

Are you still planning on T'ing both the Tractors high and low pressure lines. And connecting the supply and return lines from the loader valves to the T's ?
 

blinwmiaol.com
buickanddeere & I have had our disagreements but I have to agree with him. Hyd's won't work correctly if you tie into the supply and return lines as the rockshaft & scv won't work correctly. I think you need to cut the pressure(supply) line,install an "L" on each end of cut line and attach the hyd valve. IE have the pressure oil flow through the loader valve then back to tractor rockshaft & scv.
 
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