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Ford 9N, 2N & 8N Discussion Forum

Hydraulic lift problems

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Author  [Modern View]

06-20-2020 18:35:38

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Had to take hydraulic pump out of 1950 Ford 8n and replace exhaust valve. Checked lift cover and adjustments and all seemed to be within specifications. Replaced pump and cover and added oil. Started tractor and moved quadrant to top. Lift arms came up about of expected travel and then stopped. I still had the inspection plate off the right side of the tractor and looked inside at the control arm. When I pulled the touch lever to the top the arm would travel forward and touch the front of the pump and then would jump rearwards approximately 1/2 inch causing the lift arms to stop at the point. The only thing I found wrong when inspecting the lift cover was a slightly worn cam. The follower pin was in excellent shape. The pump seemed to be working just fine. The position control lever was up. The draft control does not work at all. Anyone have an idea as to how to fix my problem?

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06-22-2020 10:27:03

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 Re: Hydraulic lift problems in reply to bholtsclaw, 06-20-2020 18:35:38  
Quoting Removed, click Modern View to see

Took your advice and after adjusting to quadrant lever to the rear the lift came up to maximum. Draft control also works. Haven't tried lift under heavy load yet but feel that it is going to be OK. Thanks a bunch HCOOKE!

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Bill Crowell

06-22-2020 10:06:22

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 Re: Hydraulic lift problems in reply to bholtsclaw, 06-20-2020 18:35:38  
I think you might want to see JMOR's explanation here:


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06-21-2020 16:44:15

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 Re: Hydraulic lift problems in reply to bholtsclaw, 06-20-2020 18:35:38  
There are four bolts fixing the quadrant lever to the tractor. Loodsen them and try moving the quadrant forward or backward and see if that solves the problem with position control.

"The draft control does not work at all" - The main spring may be out of adjustment. Main spring is the big external spring on the back of the left.

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