1953 Jubilee hydraulic issue

T L · Feb 10, 2017

Just bought a 1953 Jubilee and the 3 point hitch arms would not go up. After investigation I found that the woble shaft and gear were stripped out. So I completely rebuilt the hydraulic pump and changed the hydraulic oil. Everything seemed to work well but then the arms wouldn't lift the next day. The draft rod is in the up position (which I have tried it in the lower position as well) If I move the draft rod down about 1/4 inch everything works, but I have to do this every time I try to lift the arms when they are at the bottom. If I physically lift the arms a little bit they instantly raise. Any ideas??

Kccca · Feb 10, 2017

Well, those model tractors, along with the 6, 7, 8, and 900 series were very prone to have "air in hydraulic oil" problems ie: it takes a lot of
bleeding the system to get all the air out. It sounds like the old girl has been up graded from vane type pump to the piston pump. Take the 3/8
air bleed plug out from the top of my the pump and leave it out for a day and see if that helps. It will depend some on the temperature of the oil <>and the viscosity, also. Screw the plug in after that only letting 2 threads catch the opening and let the engine crank without starting (pull coil
wire) and you should see some air bubbles come from around the plug. When no more air is coming out, screw in the plug and tighten.. If it has
air in the system, this should help.

T L · Feb 10, 2017

(reply to post at 02:24:32 02/11/17) [I /quote]I will give that a try.Thanks

1953 Jubilee hydraulic issue

T L

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Kccca

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T L

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