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Hydraulics leaking Down .FordsonMajor 1956


 
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MarB
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PostPosted: Wed Jun 30, 2021 3:16 pm    Post subject: Hydraulics leaking Down .FordsonMajor 1956 Reply to specific post Reply with quote

Just recently my FMD 3 point hitch arms are slowly leaking down when tractor sits in shed. Unloaded Arms will drop approx. 6 inches in a week of sitting . When I bought this tractor 21 years ago the 3 point arms would,nt lift at all. I found a deteriorated lift piston sealing ring. Replaced it and the hydraulics worked perfectly till just now. No leak down at all. She would keep the bush cutter in the up positions all winter long , just sitting parked in her shop. Can anyone shed light on this problem. Can it be that the same seal is leaking slightly or can there be some other issue. I welcome any input.
 
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SkipperII
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PostPosted: Thu Jul 01, 2021 6:36 am    Post subject: Re: Hydraulics leaking Down .FordsonMajor 1956 Reply to specific post Reply with quote

It is possible that the O rings between the lift cylinder housing and top cover are hardening, or the piston seals are seeping a bit. That
being said; if it only drops 6 inches in a week, you really don't have much of a problem.
 
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