Hydro top link

[MtnViewRanch]

I was thinking more along the lines of these:

King Kutter 84" Dual Edge Land Grader

I think what you will find is that when you put the top link in float mode when using a box blade or a LPGS as in your link, the implement will roll forward completely collapsing the hydraulic top link and the implement will be riding on the very front edge only.

Try it yourself, but pretty sure that it will not work as you are thinking that it might.

 

[Jim Timber]

I don't own either implements yet, and it might be a while before I can try it. It's possible I won't see my tractor at my property for another month.

For the geometry to work on the LPGS the bottom links need to be pretty close to grade or you'd be correct about it wanting to roll up.

 

[Imaybail]

DA cylinder with check valves.

Surplus Center

I'm Looking for one to fit a John Deere 4300. I have the third scv kit installed. Which cylinder do you recommend for that application?

 

[J_J]

The stroke and cyl length will depend on your tractor mount pin to implement pin distance.

 

[Imaybail]

With my box blade attached and in a level position, the length from pin to pin is 24".

 

[J_J]

This is a HYDRAULINK cyl

HYDRAULINK CATEGORY 1 TOPLINK

Retracted length 18 1/8 in

Extended length 26 1/8 in

2X8.25X1.18 CAT I HYD DA TOP LINK CYL

 

[MtnViewRanch]

With my box blade attached and in a level position, the length from pin to pin is 24".

You will find that something in the 19"-27" or 19 1/2"- 27 1/2" range will work the best for you.

 

[bumperm]

Thanks for that I was wondering how much drift to expect

Don't think there's a good way to answer that. It depends.

In my limited experience, two tractors with top and tilt, drift is most often the result of the spool valve, rather than the cylinder. My new (now one year old) B3350 tilt cylinder (welded ends and installed by myself) had something like 1/2 to 5/8" per hour with a heavy load - all in the spool valve as when the Quick Connects disconnected, no more drift down. In use, it drifted enough to be frustrating - set the bushhog level and then get to keep readjusting the &%^$ thing. Adding a pilot operated check valve solved the problem. Note that I did not order float function on the rear hydraulics so nothing lost and a lot gained. I was aware I could set tilt, then disconnect hydraulic hoses to lock it up, but that seemed a band aid fix.

The top cylinder I ordered from surplus sales came with DPOCV, so no drift there, locks solid. Since by bushhog has a chain lift to the rear, I've got all the float I need for rough terrain. 3-point float works for all else where float is needed.

 

[countrybumpkin]

What bore size cylinder are you guys using? I'm trying to decide if I should get a 2-1/2" or just got with a 2"

my new kioti NX5510n has cat 1 on the tractor side and cat 2 on the link ends, but im using a cat 1 quick hitch.

 

[MtnViewRanch]

What bore size cylinder are you guys using? I'm trying to decide if I should get a 2-1/2" or just got with a 2"

my new kioti NX5510n has cat 1 on the tractor side and cat 2 on the link ends, but im using a cat 1 quick hitch.

I typically recommend a 2 1/2" unit for your size tractor.