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Ford Tractors Discussion Forum

Hydraulic top link length?

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Author  [Modern View]

02-24-2020 17:07:29

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For the 9XX series Fords?

I have some serious grading work to do this spring and I'd like the flexibility of a hydraulically operated top link. From measuring the screw link I use it appears that either a 18" -> 26" unit, or a 21" ->31" unit are the two choices.
Any experience here? It would make sense to hook up the box blade and play, but the blade is buried and it's raining and then it's going to be muddy and then frozen.

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02-25-2020 07:15:14

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 Re: Hydraulic top link length? in reply to pomester, 02-24-2020 17:07:29  
From my experience, you want the vast majority of the adjustment on a box blade to be to the long side. Like 2/3rds longer than the blade flat, and 1/3rd shorter.

You can only dig in so much before the tractor breaks traction, but for laying down material, raising the front edge stands the blade up on the rear edge and raises up the front edge allowing dirt to spill back off the blade to fill low spots.

This is especially true of doing gravel driveway work.

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Ultradog MN

02-24-2020 18:32:26

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 Re: Hydraulic top link length? in reply to pomester, 02-24-2020 17:07:29  
I built my own. Cut the swivel eyes off a screw type top link and welded them on to a heavy 3000 psi cylinder.
It extends from 19" to 28 1/2" center to center of the eyes.
Lengths are just right imo.
I had made one before out of a lighter cylinder and it blew the end seal out after a couple of years of use. They are subject to more force than you would expect. That one cost me $35 for the cylinder and the balls off a rusted up top link.
This is my second one. Cost me $85 for a much better cylinder and balls from a good but used top link.
It has lasted about 6 years now and going strong.
I can't imagine going back to a screw type.

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