cdw357
New member
- Joined
- Mar 21, 2012
- Messages
- 4
- Location
- Alpena, AR
- Tractor
- Mahindra 2810, Ford NAA, Ford 861L, Ford 861D, Ford 871
Hi,
Short history of recently purchased 1954 NAA Ford.
Previous owner said the lift started working intermittently and then pretty much stopped working. He said that when it worked it worked well.
He took it to a tractor mechanic that he knew and after spending $400 was told that it "Probably needed a new pump." I think he became disgusted and sold it to me.
I don't know for sure if the old vane pump was bad or not, but since it was probably a matter of time before it went out if was good I bought a used piston pump and a new set of hydraulic lines and put them on. Although the pump primed quickly and pumped well, I had no activity from the lift arms. I read everything I could find and studied the FO-19 manual, I didn't want to take anything apart until I had some vague notion of what to look for.
I discovered that I could make the arms go up if I pushed in on the back pressure valve with a screw driver. In the meantime I found one picture on the internet of the acorn nut with a spring that went under it. There was no spring under the acorn nut on this tractor when I brought it home. I found a short spring and put it under the nut and the lift started working, although it would go up no matter where the lift lever was positioned. I found a shorter spring and it seemed closer to working. I could hold the arms down until I moved the lever. I still can't find any mention of the spring in the FO-19 manual or any parts list that I've discovered.
A couple of questions.
1. Is there supposed to be a spring under the acorn nut and if so,,
2. Is it necessary for the operation of the lift, or is it just some fluke that it seemed to make a difference on this tractor when I installed one.
If the answer to this question is all over the forum, then please accept my apologies, I've looked a lot and cannot find it.
Thanks a bunch for any help
Duane
Short history of recently purchased 1954 NAA Ford.
Previous owner said the lift started working intermittently and then pretty much stopped working. He said that when it worked it worked well.
He took it to a tractor mechanic that he knew and after spending $400 was told that it "Probably needed a new pump." I think he became disgusted and sold it to me.
I don't know for sure if the old vane pump was bad or not, but since it was probably a matter of time before it went out if was good I bought a used piston pump and a new set of hydraulic lines and put them on. Although the pump primed quickly and pumped well, I had no activity from the lift arms. I read everything I could find and studied the FO-19 manual, I didn't want to take anything apart until I had some vague notion of what to look for.
I discovered that I could make the arms go up if I pushed in on the back pressure valve with a screw driver. In the meantime I found one picture on the internet of the acorn nut with a spring that went under it. There was no spring under the acorn nut on this tractor when I brought it home. I found a short spring and put it under the nut and the lift started working, although it would go up no matter where the lift lever was positioned. I found a shorter spring and it seemed closer to working. I could hold the arms down until I moved the lever. I still can't find any mention of the spring in the FO-19 manual or any parts list that I've discovered.
A couple of questions.
1. Is there supposed to be a spring under the acorn nut and if so,,
2. Is it necessary for the operation of the lift, or is it just some fluke that it seemed to make a difference on this tractor when I installed one.
If the answer to this question is all over the forum, then please accept my apologies, I've looked a lot and cannot find it.
Thanks a bunch for any help
Duane
