559 JOHN DEERE ROLLER ROLLS TOO LOOSE

GOT A 559 J.D. ROLLER, ROLLS ARE TO LOOSE, TWO ADJUSTING VALVES. DON'T KNOW WHICH ONE TO MOVE . According to my cousin the valves are one above the other. Roller belongs to him but he doesn't have a P.C. to ask for help.
 

Pressure relief valves(keys 1 & 15) on tensioning valve housing on a JD 559 rd baler are non'adjustable. It's possible that 1 or both have failed.Does tailgate stay locked shut?
 

OOPS I forgot to upload the photo.

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gate cylinders may also be leaking internally. To test them, remove hoses on barrel end of cylinder and try to close gate. You should get less than twenty drops of oil per minute.
 
WRIGHT IMP. IN GLASGOW KY. FINALLY returned his call they say on his tractor there is an knob on aux. hyd's that has to be turned to a certain number for rolling hay.I don't know if that restricts flow or what.Anyway thanks for your input ,my old roller has a gauge and adjusting valve.we didn't know about this 559. :lol:
 
Hooked tractor to roller, the variable core shows nothing but small straight lines ,no#'s or letters.but we don't know what it's supposed to show.
 

With wiring harness from baler attached to monitor then with monitor "on" press & hold "core key" then a number should appear at RH lower corner of monitor if baler has soft core option(larger the # the larger the soft core 24''-67'').

Pressing core key again should turn soft core option off.
 
Jim, would you explain "soft core" option please? Not how it works, but what does it to to/for the bale.

Would you happen to know what kind of pressures the bale forming cylinders develop during bailing? Is the pressure constant or does it increase as the
bale diameter increases?
 
Also, do you know what the release pressure is on Item 1 in your diagram? I assume they are the same for most JD rollers. I keep an eye on mine and when I load a wad of hay into the chamber, the pressure shoots up fast to 3000 and never goes above. Assume that's my release pressure.

Is item #1 the same JD PN for this machine as my 375? If so, do you have the PN or if different the 375s PN?

The more I think about this the more curious I get. I think my tractor's pressure relief valve is 2500#. I assume the relief valve precedes the control valve in the tractor's hydraulic chain. That said, with the control valve in neutral, the baler can run pressures above the tractor's relief setting....yes?

If the bale is softer than desired with a conventional baler (no tension control), the culprits are the lift cylinders, pressure relief valve, or tractor control leaking.......yes/no.

If yes, the tractor control can be checked by hooking to a heavy implement with a known good cylinder, raise it up and watch it for a time to see if it holds it's position or drops. Inspection for any irregularities, and replacing the packing in the cylinders should solve that problem. Which leaves the pressure relief valve. Considering the time it takes to roll a roll, if you can't maintain pressure for that time enough to wind up with a tight bale, seems the valve has a pretty good leak rate......yes/no?

Or what else could be the culprit on a soft bale?

Thanks,
Mark
 

Mark
Soft core option was designed for an aid to get tougher/a little higher moisture % hay to start forming a core easier. If set at maximum then bale will more resemble a fixed chamber baler type bale.

You're baler(model 375)when bale is started being formed pressure is lower then pressure rises to set pressure. Your baler has non-adjustable relief valve while my 467 has an adjustable relief valve that I keep set at maximum.
 

Ronnie
I made an incorrect statement about maximum size of soft core(67'') on the 559 due to size of bale made by 559 baler soft core will probably only be 55''
 

Mark
Relief valve(AE54854 key1) on your 375 baler is set at 3500 psi. Internal leak on piston seal on tension cylinder or internal leak in tensioning valve can cause soft bales PLUS the method that operator feeds hay into baler. Tractor scv can also contribute to soft bale.

Model 559 baler utilizes a 4000 psi relief valve(AE54857)
 
JIM, Done as you said, nothing showed up,tried it with roller running, roller off, also just the box on. little straight lines is all i've seen.
 
(quoted from post at 20:20:44 09/14/18) JIM, Done as you said, nothing showed up,tried it with roller running, roller off, also just the box on. little straight lines is all i've seen.

I think this 559 doesn't have option for soft core.

SCV = selective control valve
 
Jim,

Thanks for the replies. Questions: Where is my tensioning valve and does slower ground speed, smaller WWs tighter?
 
I found it on: http://jdpc.deere.com/jdpc/servlet/com.deere.u90490.partscatalog.view.servlets.HomePageServlet_Alt?search=model&model=30

Also noticed JDs where to (effective Oct 31) site: Parts Advisor.com and you need to log in. Is that limited to dealers and service depts?

Thanks,
Mark
 

Yes PartsAdvisor.com is replacing JDparts.com on 10/31 accessible to anyone that logs in. One has always needed to log in the check parts availability/pricing
 
Does John Q citizen get to register and log in or just JD Dealers?
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I found Dropbox. com site and for 10 bucks got a PDF of a complete manual for my 375 and others of the series. Trolling the www for the part
number(s) of the high pressure valve got zero responses.

Going to JDPC.deere.com got me a parts listing for the baler but the numbers listed are no where near what I have and I can't find a cross reference:

Manual says Hi Pres is 3500# and PN: RV3-2729 or RV-4626-35

JDPC shows either AE51677 or AE54854 for the 375.....no idea as to the difference. I can find sources for these PNs but for $250+ I need some hard
facts that I am buying a valve that will work. The 375 doesn't show up on search engines like the 335 but it has a 2750# valve......I don't know the other
differences between the two models.

As I mentioned somewhere awhile back, when I gobble up a wad of grass the pressure spikes to 3000 and never goes higher regardless of the size of
the wad. I stop forward movement of the tractor and the baler digests the wad and as it does the pressure drops back to 2000 area. While running
normally in filling the chamber, it stays in the 2000# or slightly less area and I get a soft roll. Manual says this problem is the Hi. Press valve and I want
the 3500# unit.

Buttttt it wasn't that way always. Remembering the 2014 8' SS mess, those were tight bales....so something (besides the cylinder packing I replaced
last winter) is leaking and it's getting worse.



Any thoughts?

As usual, thanks,
Mark
 
My-my........

Went out to the baler with flashlight, mirror, notepad and pen. Found the numbers on the valve. In fine print was the number AE48487 below RV3-2729 in large print, the number in the repair manual I had been web searching.

Going back to your reply to me on a question July 24, 2012 on this site (yeaaaaaaaa) were the numbers I need now for the answer to my question.

So sir, you can skip over the above request as you have already supplied me with what I need.

Thanks,
Mark
 

AE51677 subs to AE54854 which as I previously stated is set at 3500#. I think you need to acquire a JD tech manual(TM1472 or TM1472CD) for your model baler. I personally am not familiar with the tensioning system on the smaller JD rd balers.

Yes JD parts adviser is for the public. It's my understanding that JD dealer employees utilize a different parts catalog system
 
I have one. In going through things I realized that I replaced the first 0-5k# gauge with a 0-3k gauge so that it would be easier to see the 750# "Gate
Closed" guarantee. Since my high pressure pop-off is above that I can see why my current gauge went to 3000 and stopped. So today I installed
another gauge, another new 5k#.

I pulled the high press pop-off out and looked it over......perfect appearance. Rotated the shaft and felt some grit. Cleaned it out and lubed it back up
and it spins smoothly now with no grinding. I may have had some corrosion build up at the mating surface causing the valve to not seat correctly.

I'm through haying for the year but I may get a roll out, unroll it and bale it again to see if I have it fixed or need to buy a new valve before haying season
next year.

Thanks,
Mark
 

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