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JD A Hydraulics

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Ryan

09-13-2002 18:10:53




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I have a 1951 A. The New Idea Cut-Ditioner that I own has a one- way cylinder on it. I have been told that If I try to hook up the connection and try to raise, lower it, the seals would blow on the tractor, because of the two outlets for a 2-way cylinder.
Also It has a three point hitch on it. How do I operate the hyd. lines seperate from the rockshaft for the three point? I have the attachments with quick couplers that go into the pump housing. Tractor MOD# 677810 Thank you for any help.

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Ryan

09-14-2002 16:16:26




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 Re: JD A Hydraulics in reply to Ryan, 09-13-2002 18:10:53  
Thanks for all the information everyone. I guess the only questions I have left would be where is the resivore level check at and what type of oil is recomended. There is a plug at the back of the housing with the letter "L" cast into it. And everyone is saying that there is an adjustment to go from rockshaft to the outlets. With so many plugs and adjusters of the housing I would hate to try the wrong thing. As far as lifting the mower we have a Farmall M that has been used for years and lifts it just fine, or is the pump a higher capacity on the Farmall? (would rather use the Deere if I could.)

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JD70Jim

09-14-2002 10:32:55




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 Re: JD A Hydraulics in reply to Ryan, 09-13-2002 18:10:53  
A two way coupler works just fine with a single acting (one way) cylinder. I do this all of the time with the one way cylinder lift on my JD 1209. Your problem is going to be the fact that the "A" hydraulic pump is something like 750-950 psi, a lot less than the 2250psi that my NG 4020 or 3020 developes. Someone posted some time ago that his "A" wouldn't lift the 1209 he had, the stated requirement was a good 1450psi or so, which is a lot more than you have. I think that a 60 might have enough and I'm sure that a 620 would,but your "A" is a little low pressured for the job.

Also, what would make the seals "blow" would be overloading the system, not using it with a single acting cylinder. Hooking up the Cutditioner in the "up" position may well overload the "A" hydraulic powrtrol.

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A Man

09-13-2002 22:00:43




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 Re: JD A Hydraulics in reply to Ryan, 09-13-2002 18:10:53  
on the right side of pump housing take out the two pipe plug and plum it in and you should be fine. that is what i did and it work for me but i do not know if the pump is stout enough for that task i just us it on an 10 foot offset and it work fine. let me know if it works. and good luck



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CJDave

09-14-2002 03:28:40




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 Re: Re: JD A Hydraulics in reply to A Man, 09-13-2002 22:00:43  
Are you saying that those pipe plugs on the side of the Power-Trol are the same thing as the rear ports? Just pipe thread instead of push-in? Our 1952 A that we just got has a single ram loader with just one hose that goes to the lower of the two original JD fittings on the Power-Trol. A farmer just told me that you took off this little hex cap near the bottom of the rear side of the Power Trol unit and there was a jam nut and an adjustment that was used to switch from rockshaft to remote hoses. The problem I have is (1) no manual for my A, and (2) this A is so much later than the ones we had in my kidhood that I have zero experience with the Power Trol other than WISHING every day when I was a kid that we had remote hydraulics. We only had up-dn rockshaft. I really need some help with this Power Trol, just as the original poster does. ..... Dave

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A Man

09-14-2002 07:01:35




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 Re: Re: Re: JD A Hydraulics in reply to CJDave, 09-14-2002 03:28:40  
I do not know about the adjustment but you can remove the plugs and you will only have pressure one way you could use it to lift it up and then let it fall slowly with own weight but is the tractor big enough to handle a disk mower the one i have is 10ft and on hill land an A can not handle so be carful let me know how it works



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carl

09-14-2002 15:56:08




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 Re: Re: Re: Re: JD A Hydraulics in reply to A Man, 09-14-2002 07:01:35  

I have a late A seriel 679,387. I use it all the time on a 1988 new holland pull type mower with one way cylender. I only hook up one outlet on the powertroll. just make sure your powertroll resevoir cap is vented



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