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Ford 9N, 2N & 8N Discussion Forum
Show Parts for Model:

lift arms won't lift on 8N

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Author  [Modern View]
Mcclellan

12-06-2011 18:49:16
64.194.165.27



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I hope this is not a repeat but I cannot find my previous post. The lift arms on my 8N have stopped working. I have looked at the fluid and there appears to be turbulence from under the oil like the pump is pumping. The selector shaft moves up and down when operating the sector control. I replaced the relief valve and still no lift. The PTO is turning as is the pump. There is no resistance at all in the arms. They can be raised and lowered by hand like they were not connected to anything. I have looked at the linkage and it appears everything is still in place. IDEAS???

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Mcclellan

12-10-2011 06:35:07
64.194.165.27



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 Re: lift arms won't lift on 8N in reply to Dean, 12-06-2011 18:49:16  
Quoting Removed, click Modern View to see

Loose or broken linkage was the first thing I checked. It was so easy to move the liftarms by hand that I though something had failed. Now that I freed up the intake control valve the lift arms work better than they ever have. I replaced the relief valve since it had a leak. The arms now hold position when I put in the clutch.



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Cutty

12-10-2011 05:48:54
166.248.67.125



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 Re: lift arms won't lift on 8N in reply to JMOR, 12-06-2011 18:49:16  
Quoting Removed, click Modern View to seedid you check this?



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McClellan

12-09-2011 12:04:57
64.194.165.27



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 Re: lift arms won't lift on 8N in reply to JMOR, 12-09-2011 09:03:34  
My manual is by the same publisher as the old one you reference but it is 103 pages. I looked at the PDF you sent and it looks just like mine except your version is a LOT clearer. Mine came with the tractor when I bought it 15 years ago. It is probably a copy of a copy of a copy etc. I'll check out the newer version. Thanks again for all the help.



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JMOR

12-09-2011 03:12:58
72.190.9.193



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 Re: lift arms won't lift on 8N in reply to John (TR), 12-06-2011 18:49:16  
Quoting Removed, click Modern View to seeIntake Control valve is correct name. The Intake Control valve & it's bushing make up the valve and sticking is usually diry/products of corrosion, etc. & a good cleaning & a little light polishing generally frees things up. It isn't going to do anything but loosen up with wear of the metal parts, so I would say get to cleaning & not worry about replacement at this point.

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McClellan

12-09-2011 07:00:16
64.194.165.27



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 Re: lift arms won't lift on 8N in reply to JMOR, 12-09-2011 03:12:58  
That's sort of what I thought but it is nice to have it confirmed. I'll probably wait until the weather is better next spring and pull the pump. Don't want the tractor down in the winter when I need it for clearing snow and grading the driveway. Did the pictures you sent of the pump/valve come from a shop manual? If so is it available? Those pics were worth a thousand words and my manual just has grainy blobs for pictures.

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Cutty

12-08-2011 13:23:06
76.127.61.65



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 Re: lift arms won't lift on 8N in reply to Mcclellan, 12-06-2011 18:49:16  
Had this same thing happen on mine one day and all it was was the nut that holds the lift lever on the shaft needed a little tightening. Snugged it a bit and it's Ben fine ever since.



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JMOR

12-08-2011 09:43:33
72.190.9.193



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 Re: lift arms won't lift on 8N in reply to Phlash-OK, 12-06-2011 18:49:16  
Quoting Removed, click Modern View to see

Can't remember exactly but thinking about an inch front to back. Forward, till against pump housing is full "up" position.



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McClellan

12-08-2011 17:15:10
64.194.165.27



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 Re: lift arms won't lift on 8N in reply to JMOR, 12-08-2011 09:43:33  
As per the pictures and explanation from JMOR I drained the oil and checked out the intake control valve. It was not moving at all. I got up my nerve and really forced it and it popped into the pump. I think this is what Zane was saying yesterday and I wasn't clear about where to move it. I exercised the valve a bunch of times and it seems fine now. It probably should be replaced before it sticks again. I can't find the "intake control valve" listed as a separate part anywhere. Does anybody know if it has another name? Thanks to one and all. I have a 3/4 mile driveway the goes 500 feet up and I really need the box scraper to keep it up in the winter weather.

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McClellan

12-08-2011 12:51:42
64.194.165.27



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 Re: lift arms won't lift on 8N in reply to JMOR, 12-08-2011 09:43:33  
That is really useful information. The rod does not move front to back any more than a 1/16" at the most. I guess the next thing to to drain the oil yet again so I can see what is happening at the pump. The pictures are great!! They are far better than the ones in my manual. I can actually see what the rocker and rod are supposed to be doing. Thanks again.



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Mcclellan

12-08-2011 09:33:29
64.194.165.27



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 Re: lift arms won't lift on 8N in reply to Mcclellan, 12-06-2011 18:49:16  
I checked the control rod. It moves at the most 1/8" mostly up and down. It does have a slight front to back rocking motion. I tried to move it by hand and it does not move. At least not with my strength. I did switch from draft to position control and when "position" is selected the control knob lever is VERY stiff. There did not use to be any difference in the force required to move the control lever regardless of draft/position selection. How much should the control rod move if it is behaving properly and in what directions?

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ZANE

12-07-2011 05:00:27
98.83.21.249



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 Re: lift arms won't lift on 8N in reply to Mcclellan, 12-06-2011 18:49:16  
Grab the control rod while the tractor is running and push it forward toward the bottom end. If the lift then raises but still won't raise with the touch control handle the cam follower pin could be worn though and not allwing the control valve to be moved with the touch control handle.

Zane

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soundguy

12-07-2011 04:28:21
184.247.159.8



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 Re: lift arms won't lift on 8N in reply to Mcclellan, 12-06-2011 18:49:16  
the rod hanging down from the top cover to the pump should not move up and down when you move the 3pt lever, it should actually move forward and back just a little bit.

if it is moving up and down, the control valv may be stuck.

soundguy



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old

12-06-2011 19:14:30
209.86.226.11



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 Re: lift arms won't lift on 8N in reply to Mcclellan, 12-06-2011 18:49:16  
Yep yopu can lift the arms up by hand and they move easy so that is as it should be. As for moving oil with the PTO in gear and the lift set to lift you should see little to no oil moving and if you do then that is the area that you have a problem like maybe blown pump gaskets or other such leaks



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