Combines 7130 on a 750 drill

if you are going to run a jd drill with "constant down psi" you will need to install a jumper hose on the psi line of the drill otherwise the lever will kick out or you will have a tarp-strap on it not good this puts the pump on high psi and will over heat the hyd system if you have any IJ on how to do this let me know and i think that i can help you

I posted this on another site and was told that lever number 1 has detent to operate the drill,but had been a few years since he used it so am trying to find out for sure.

The problem you are referring to is the leak created thru the detent mechanism. On the 7130, n1 remote has priority. If you run the drill as is on this remote with the tarp strap you will not only cause heating problems, but chances are that the priority spool will shut the rest of the remote stack and hitch off. The simplest way to operate this would be to connect the down pressure circuit to one of the other remotes, my preference would be the last lever, Bottom out the detent adjustment on the bottom of the valve, and connect the hoses so you have to go foreward to energize the circuit and then float to shut it off. Also need to control the flow at the tractor valve and only use the oil you need. E-mail me if you have any other questions. besthornb@bartonccc.edu.

you can run the down psi on any lever that you feel the trouble is that the drill is a closed center and the tractor is open center so if you put the drill in the ground and your psi gauge reads 1500psi in 300 feet it will more than likley be to 100 or less this is because the oil "leaking on the tractor which is norm" what you need to do to make the two to work TOGETHER is put a jumper hose on the drill this will allow your tractor to put out 5-6 gmp "with the flow cont set" and you can bleed off 4-5 gpm of this flow but still have "constant down psi on the oneners" you will be running down the field with one lever in detent pumping 5-6 gpm out the tractor and with a added needle valve you will be putting 4-5 gmp back to res. thus leading to back psi in the "down" side of the lever and your gauge will stay on you psi up and down the field trust me it will work and it is the only way to do it RIGHT

The jumper hose jury rig is only for use on tractors with a low volume open center system like the older IH tractors. This keeps constant down pressure on the drill and lets the open center system circulate oil. If pump volume is very high your apt to get oil heating problems using this setup. With a PFC system like the 7130 has you don't have to do this, just use the correct remote and control the flow and detents.

Why does using the n1 priority valve heat the oil any more or less than any of the other remotesIJ Aren't they all hooked to PFC systemIJ The tarp strap is doing the same thing as tightening the detent up. What's different hereIJ

The pressure detent release system on this valve consists of a spring loaded needle for adjustment of the release pressure. This pressure is sensed from the load side of the control valve. When load pressure gets high enough to open the needle then oil is allowed to act on the release piston, removing tension on the detent balls thus releasing the spool and allowing the springs to return the control spool to the center position. There is also a .020 orifice is a passage to the sump that restricts oil flow out of the detent machanism and allows for the hyd pressure to build. When you utilize a tarp strap to hold the remote lever on and not the detent you have just created a high pressure leak in the system. This is what generates the heat. The priority spool in n1 is a completely spearate issue. This spool accomplishes two things. First, it is responsible for maintaining a consistent oil flow thru the valve when additional flow is requested from the pump, such as when using another remote, hitch, or steering. Without this valve the lighter loads would speed up and the heavier loads slow down or not move at all. The second function of the priority spool in n1 it to gurantee that the flow demands for this valve are met first. It accomplished the same thin for n1 as the steering priority valve does for steering. If a heavy load is placed on n1, and the flow is not controlled with the flow control in the tractor valve and the lever is bungeed on, the priority valve will shut off everything downstream. Essentially what you are telling the pump is that n1 is the highest load and that is the only load that the compensator will see and the pump will only deliver enough oil to staisify the requirements for n1. Hope this helps.