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LouSWPA 
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Joined: 11 Sep 2009
Location: Clinton, Pa
Points: 25214
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 Topic: Hydraulic question
Posted: 01 Oct 2025 at 5:00pm |
I have a Royal King 37 hp tractor, with the backhoe attachment. If I don't bleed down the hydraulic system, tractor shut down, cycle all controls in tractor and hoe before I disconnect the hoe from the tractor, then I cannot get the quick disconnects reconnected when I setting up to use the hoe again. In that case, I then need to take cover off of controls and open the system to relieve the pressure. PITA! my question is there something I can put in line that I can relieve the pressure w/o taking it all apart?
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I am still confident of this;
I will see the goodness of the Lord in the land of the living.
Wait for the Lord;
be strong and take heart and wait for the Lord. Ps 27
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DMiller
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Joined: 14 Sep 2009
Location: Hermann, Mo
Points: 34135
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Posted: 01 Oct 2025 at 5:33pm |
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Have same issue with a 2305 Deere loader attachment, anything functional would be ridiculously expensive.
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LouSWPA
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Joined: 11 Sep 2009
Location: Clinton, Pa
Points: 25214
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Posted: 01 Oct 2025 at 7:23pm |
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Dave, I'm sure you are right, but it sure would be nice to have a manual pressure relief that could be installed in line with the two hoses going to the hoe.
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I am still confident of this;
I will see the goodness of the Lord in the land of the living.
Wait for the Lord;
be strong and take heart and wait for the Lord. Ps 27
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HudCo
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Joined: 29 Jan 2013
Location: Plymouth Utah
Points: 3926
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Posted: 01 Oct 2025 at 7:29pm |
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pioneer 9500-4 series couplers connect under preasure
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LouSWPA
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Joined: 11 Sep 2009
Location: Clinton, Pa
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Posted: 01 Oct 2025 at 9:13pm |
 HudCo wrote:
pioneer 9500-4 series couplers connect under preasure
Thanks Hud! Dave was right, not cheap!
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I am still confident of this;
I will see the goodness of the Lord in the land of the living.
Wait for the Lord;
be strong and take heart and wait for the Lord. Ps 27
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steve(ill)
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Joined: 11 Sep 2009
Location: illinois
Points: 88129
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Posted: Yesterday at 3:16pm |
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could you put a 3000# valve with a couple 1/4 inch hoses between the supply and return lines as a JUMPER... open the valve and relieve the pressure back to suction side ?
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Like them all, but love the "B"s.
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LouSWPA
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Joined: 11 Sep 2009
Location: Clinton, Pa
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Posted: 8 hours 16 minutes ago at 9:45am |
steve(ill) wrote:
could you put a 3000# valve with a couple 1/4 inch hoses between the supply and return lines as a JUMPER... open the valve and relieve the pressure back to suction side ?
Steve, I don't think that would solve the problem completely. It would equalize the pressure between the supply and return on the hoe, but not necessarily between the hoe and the tractor. Most often it is only one line that is pressurized, but on a couple of occasions it is both. I know I am prone to 'forgetfulness', but I am pretty sure I am bleeding them at least most of time, yet, when it comes time to reconnect, I find one or both lines w/some pressure prohibiting me from making the connection. I suspect that as the hoe settles, the weight of the hoe on one or more of the cylinders is causing the issue. I need to discover a way to support the hoe better, I think. I was hoping for a relatively inexpensive solution of an inline pressure relief, but what I have seen so far is beyond my budget. |
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I am still confident of this;
I will see the goodness of the Lord in the land of the living.
Wait for the Lord;
be strong and take heart and wait for the Lord. Ps 27
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Tbone95
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Joined: 31 Aug 2012
Location: Michigan
Points: 12222
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Posted: 6 hours 58 minutes ago at 11:03am |
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Hmm, so cheap and dirty? Heavy on the dirty? Not much is cheap these days. How about just before the hose tip, put in a tee and a little ball valve on the branch of the tee. Carry a coffee can with you when you hook up and crack the valve into the coffee can. If you can keep it clean dump it into your oil supply. If not pour it on moving parts. Not elegant but beats slamming the hose tip onto the drawbar and spraying oil everywhere.
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LouSWPA
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Joined: 11 Sep 2009
Location: Clinton, Pa
Points: 25214
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Posted: 3 hours 35 minutes ago at 2:26pm |
Tbone95 wrote:
Hmm, so cheap and dirty? Heavy on the dirty? Not much is cheap these days. How about just before the hose tip, put in a tee and a little ball valve on the branch of the tee. Carry a coffee can with you when you hook up and crack the valve into the coffee can. If you can keep it clean dump it into your oil supply. If not pour it on moving parts. Not elegant but beats slamming the hose tip onto the drawbar and spraying oil everywhere. I tried the slamming trick, but not enough man in me to get it to work!3000 psi system |
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I am still confident of this;
I will see the goodness of the Lord in the land of the living.
Wait for the Lord;
be strong and take heart and wait for the Lord. Ps 27
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Les Kerf
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Joined: 08 May 2020
Location: Idaho
Points: 1342
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Posted: 2 hours 37 minutes ago at 3:24pm |
A quick google search came up with this:
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DiyDave
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Joined: 11 Sep 2009
Location: Gambrills, MD
Points: 54268
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Posted: 2 hours 1 minutes ago at 4:00pm |
Where are you storing the backhoe? If it gets full sun, the fluid can heat up and lock the fittings up, don't ask me how I know... 
Come back in the early AM or on a cloudy day, and sometimes the locked fittings work like a charm...
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