Finding the hydraulic leak can often be a much more challenging task. There are many different SCV configurations one can choose when ordering a John Deere utility tractor. Luckily, tractors have relatively small hydraulic systems and few hydraulic components. Ordering codes differ in detent type (either 100, 200, or 300), type of coupler (standard or deluxe), and how many SCV valves come on the rear of the tractor. If there is no hydraulic system pressure, the hydraulic pump could be worn. Hydraulic Coupler Conversion Kit Compatible with John Deere 3020 4440 4230 4020 JavaScript seems to be disabled in your browser. 4. So there are not many places for hydraulic fluid to leak … On the right is a cap that can screw down over whatever plug is not being used, both to keep dirt from entering, and (in the case of hoses) to keep oil from leaking out. Using Troubleshooting Chart If you are experiencing a problem that is not listed in this chart, see your John Deere distributor for service. Simple steps can be taken to repair or prevent leaks within the couplers. In the middle is a plug for use with an external hydraulic unit, such as a remote cylinder. Summary Hydraulic couplers use O-rings to prevent leaks. All of the FARMTUFF® Replacement Parts are made to meet OEM specifications and requirements. Many John Deere attachments use hydraulic quick couplers. I noticed today that one of the four FEL QD hydraulic fittings has a pretty good drip going (maybe 1 drip every 10 seconds). I have a john deere 6230 and the remote hydraulic [selective controls] two sets,, both wont hold pressure and bleed off rapidly allowing an implement to settle down,, I checked the developed pressure, … read more John Deere Powr-Trol. I noticed behind the DRVC (Dual Remote Valve Cylinder) housing where it bolts to an "adapter" is a steady leak- Is this just a gasket issue? JD 8300 spewing hydraulic oil out SCV valve stack. That means when you buy from Abilene Machine you can be rest assured that you are getting a quality replacement part at a farm friendly price. Here are some of the common problems and possible causes. Replaces John Deere OEM nos RE206778, RE12121. Abilene Machine is proud to offer our FARMTUFF® Ag Replacement Parts for John Deere® Selective Control Valves & Couplers and much more. For problems with the boom arms not rising or lowering correctly, it could mean that the gear pump is damaged. Apr 30, 2020 #1 . TSherm New Member. Help, this is the tractor I do field work and plant with. If you notice that the hydraulic oil overheats, you should open the “preselector” to allow you to check whether oil passage to the engine is closed. See attached photo. Common Problems. The relief valve could also be damaged. Apr 13, 2020. And by the way the new type seal seems to leak worse when the tractor is shut off. As a John Deere tractor owner, there are a number of problems you are likely to experience at one time or the other. For this problem, consult your John Deere dealer. Searching for leaking couplers, quick-disconnects, fittings, etc provides an overwhelming number of false positive results. Fixing a hydraulic leak might be as simple as tightening a hose fitting. Posted: Fri Nov 09, 2012 4:49 am Post subject: Re: remote outlet leaking on JD4240: The new style seals leak very much bad, I replace all the new type seals with the old O-Ring and spiral nylon back-up and have had great success. Consult your John Deere dealer for this problem. JD 630 Gas Hydraulic fluid leak behind Remote Valve Housing Discussion in 'John Deere' started by TSherm, Apr 30, 2020. I apologize if this is a commonly discussed issue - but I couldn't find it. It started with just a little dripping then progressed over a few weeks to what the photo shows. 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