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52 8N hydralic lift has a mind of its own

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Steve

09-08-2000 22:38:06




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The hydralic lift on my 52 8N has developed a mind of its own. It will not stay at a set position while running. I will set the stop, lower the bush hog, and soon the blades are in the dirt. Sometimes it just decides to raise up all by itself without the lever being moved. The only way I can get it to work is to hook chains to the lower links to hold the bush hog at the height I want it to run, then let the hydralics all the way down. This alleviates the problem of it trying to raise itself up, and keeps it out of the dirt.

A neighbor told me my valve spool was worn out, another guy told me that all I needed was new o-rings in the hydralic lift. The tractor belonged to my grandad and has about 2600 hours on it and as far as I know the hydralic system has never been repaired. Anyone have any suggestions? I looked at the owners manual, but it did not mention this problem. unfortunately I don't have a shop manual.

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Steve IA

09-09-2000 04:12:52




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 Re: 52 8N hydralic lift has a mind of its own in reply to Steve, 09-08-2000 22:38:06  
Is the position control lever ( the little one under the seat on the right side) vertical? Should be pointed at your right cheek. HTH.
Steve IA



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Steve

09-09-2000 10:36:15




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 Re: Re: 52 8N hydralic lift has a mind of its own in reply to Steve IA, 09-09-2000 04:12:52  
Yeah it is pointed straight up. I have never moved it since I have had the tractor. What is its function?



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Steve IA

09-09-2000 15:03:21




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 Re: Re: Re: 52 8N hydralic lift has a mind of its own in reply to Steve, 09-09-2000 10:36:15  
The little lever in the vertical is in 'position control' which means by adjusting the quadrant lever up or down you can raise/lower to any position you desire, and a good working hydraulic system will hold that postion. In horizontal it is 'draft control' and is used mainly when plowing. Back to your original problem. Have you checked the hydraulic fluid level? Dipstick on right side under the seat. Don't overfill. Beyond the simple things I suggest you check the archives for hydraulic problems. Lots of posts. Also read some of the current posts. This is a common area of discussion, but can't say I've read one quite like yours. If your going to keep your N, get a good manual. I&T F0-4 is a good one, available online or at tractor supply places. Best $20-$25 you'll spend. HTH good luck
Steve 8N 169302

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Steve

09-09-2000 21:31:55




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 Re: Re: Re: Re: 52 8N hydralic lift has a mind of its own in reply to Steve IA, 09-09-2000 15:03:21  
Fluid level is fine. I think there is something wrong with the hydralics bacause when you push in the clutch or turn the engine off the lift settles almost instantly.



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Steve Ia

09-10-2000 03:46:05




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 Re: Re: Re: Re: Re: 52 8N hydralic lift has a mind of its own in reply to Steve , 09-09-2000 21:31:55  
Those are classic symptoms that your ram cylinder needs new rings. I fixed mine this summer; read the archives, get the book. Parts are just a few bucks. Good luck.
Steve 8N 169302



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