6230 Hyd. flow/ volume to planter vac. drops

Paul1916

New User
Hi,

Tractor is approx. 2008 JD 6230, we are running a 4 row vacuum planter with it.
Pressure checks right at 3000 psi.
The issue is you set the vacuum level and it maintains it correctly until you lift up the planter. When you use the other remote the vacuum level drops to almost nothing and the concern is this will loose the prime on the seeds on the disk's. The issue does not even seem to be the extra flow going to the lift cylinders of the planter because when you work the other hyd. circuit with nothing hooked to it and hold the lever back it does the same thing and even worse than just raising the planter.
We also have a JD 6110 ( late '90's ) and when hooked to this planter it does not matter what you do with the other SVC's -the flow to the vacuum fan does not change.
My guess is that some type of bypass or relief valve is not working correctly on the 6230, it may have been doing this from when it was new but I can not recall.
Thanks for any in sight into this issue you may have.
 
This is a newer tractor than what I am familiar with, however I know going back through the tractors I have used and set up for orbit motor operation, I believe the entire Generation II lineup (30-60 series) had a specific hydraulic outlet which was given priority for orbit motor operation, which was fed oil before any other function and would eliminate or at least minimize this issue you are having. As I recall, these typically were the 2nd outlets, if the tractor only had 2 sets of SCV's or the 3rd, in the event the tractor had 3 sets of SCV's. My old 4640 runs an orbit motor, which does not have a great demand for flow, and is plugged into the 3rd SCV, which is that tractor's dedicated priority valve for orbit motors. On the last of the Generation II tractors, a friend whom I work with quite a bit, had planted with his 55 series tractor and operated a 12 row Max Emerge Vac planter. He opted to put in a dedicated set of lines for orbit motor operation, which freed up a SCV. When he switched to planting with a newer 8000 Series Deere tractor, I believe on the back of the tractor there are ports which are dedicated to different types of hydraulic functions and needs. The orbit motor running his vacuum fan is plumbed into the ports dedicated for orbit motor operation rather than into an SCV. I do not know if your 6230 is set up like that or not. I came across some specifications on new Deere tractors mentioning some sort of factory installed or field installed option for hydraulic orbit motor priority functions. I don't know if the operator's manual for your tractor shows or mentions something about a "priority valve," or something about "orbit motor priority," or that sort of thing, like the earlier tractors did. This issue you raise is far from being rare or uncommon, since today's planters typically have such a high demand for hydraulic functionality and use, and if all else fails, I suspect a dealer should be able to help you solve this issue, too. I only base my comments on my own experiences and what I have learned from my friend and his planter and attached tractor. What you describe sounds to me like your orbit motor is not plumbed into a dedicated priority valve/port/SCV.
 
(quoted from post at 12:02:12 03/16/18) This is a newer tractor than what I am familiar with, however I know going back through the tractors I have used and set up for orbit motor operation, I believe the entire Generation II lineup (30-60 series) had a specific hydraulic outlet which was given priority for orbit motor operation, which was fed oil before any other function and would eliminate or at least minimize this issue you are having. As I recall, these typically were the 2nd outlets, if the tractor only had 2 sets of SCV's or the 3rd, in the event the tractor had 3 sets of SCV's. My old 4640 runs an orbit motor, which does not have a great demand for flow, and is plugged into the 3rd SCV, which is that tractor's dedicated priority valve for orbit motors. On the last of the Generation II tractors, a friend whom I work with quite a bit, had planted with his 55 series tractor and operated a 12 row Max Emerge Vac planter. He opted to put in a dedicated set of lines for orbit motor operation, which freed up a SCV. When he switched to planting with a newer 8000 Series Deere tractor, I believe on the back of the tractor there are ports which are dedicated to different types of hydraulic functions and needs. The orbit motor running his vacuum fan is plumbed into the ports dedicated for orbit motor operation rather than into an SCV. I do not know if your 6230 is set up like that or not. I came across some specifications on new Deere tractors mentioning some sort of factory installed or field installed option for hydraulic orbit motor priority functions. I don't know if the operator's manual for your tractor shows or mentions something about a "priority valve," or something about "orbit motor priority," or that sort of thing, like the earlier tractors did. This issue you raise is far from being rare or uncommon, since today's planters typically have such a high demand for hydraulic functionality and use, and if all else fails, I suspect a dealer should be able to help you solve this issue, too. I only base my comments on my own experiences and what I have learned from my friend and his planter and attached tractor. What you describe sounds to me like your orbit motor is not plumbed into a dedicated priority valve/port/SCV.

Thanks for the reply, in talking to the dealer and doing some research I can not find a priority valve on the tractor. We have also tried all the different combinations of hooking it up using all 3 sets of SVC's and it did not change any thing.
I believe the load from a 4 row planter is pretty small and judging by how it works just fine on our other tractor with no problems no matter how it is hooked up -something must be adjusted wrong or not working.
 
Sorry I couldn't be of help. Just thought I would toss out what I did know and learned through a friend of mine. Good luck to you and I hope you find your solution.
 
Actually, you did help me, you mentioning the 2nd valve got me thinking about checking it one more time and it turns out we must not have tried the 2nd valve- it works as it should. When you raise the planter and continue to hold the lever it does not slow the fan down. The reason we did not use the 2nd SVC was it was the only one out of the 3 that did not have a flow control on it and we liked to use those to control the vacuum setting. We will reinstall the original restricter valve and be back in business. I am not sure why JD could not affirm which SVC is the priority valve but it makes sence that it is the bank closest to the the middle on the left side of the main housing. Thanks. :D
 

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