Hydraulic Top Link M9540

[LD1]

The length range is going to be determined by the measurements I mentioned in post #12.

Size of tractor is irrelevant.

I just assumed that scaling up to a 95HP machine, that things would get bigger. Longer lift arms (to get out past the larger tires) etc.

I use a 24-36 on my MX, But dont think that would work on a BX:thumbsup: So I assumed for a 9540 it would need to be at least similar to mine. Wouldnt have imagined that it would be shorter

 

[AllDodge]

Without a closer look, the MX PTO appears further recessed and away from the outside surface of tires. The M PTO sticks out further

As for the bore, the Cat 1 cylinders are even smaller.

 

[LD1]

Without a closer look, the MX PTO appears further recessed and away from the outside surface of tires. The M PTO sticks out further

As for the bore, the Cat 1 cylinders are even smaller.

I wouldn't go any less than a 3" bore.

More volume means any leakage in the cylinder or valve is gonna be much slower due to more oil for a given distance.

Bigger cylinder also reduces the pressure of the oil confined with a given weight hanging back there. Also slowing and drift caused by cylinder or valve leakage.

That 2" bore cylinder shows 4300# of retract force. The hitch can lift 5500# or an optional 8000#+. Add the leverage of any length like a mounted 10' cutter or other heavy and long implememt..and you WILL have issues

 

[AllDodge]

Time will tell if your opinion is correct

 

[ovrszd]

I just assumed that scaling up to a 95HP machine, that things would get bigger. Longer lift arms (to get out past the larger tires) etc.

I use a 24-36 on my MX, But dont think that would work on a BX:thumbsup: So I assumed for a 9540 it would need to be at least similar to mine. Wouldnt have imagined that it would be shorter

Confused me in the beginning too.

Important for everyone to measure their own tractor unless someone has the same model they can compare to.

 

[LD1]

Time will tell if your opinion is correct

What does that mean?

Does that mean you ordered the 2" bore one (only rated @ 4300#) that you linked in post #32? For a tractor with a hitch rated for 5500 +/-

Either you plan on using the 3PH very lightly, with light implements, or you are gonna have issues. A 2" TL cylinder is something I'd expect to see on a 30-40HP machine with less than half the lift capacity and weight

 

[AllDodge]

What does that mean?

Does that mean you ordered the 2" bore one (only rated @ 4300#) that you linked in post #32? For a tractor with a hitch rated for 5500 +/-

Either you plan on using the 3PH very lightly, with light implements, or you are gonna have issues. A 2" TL cylinder is something I'd expect to see on a 30-40HP machine with less than half the lift capacity and weight

Your using some facts but are not taking all parameters into consideration, so your voicing your opinion.

The lifting force of the tractor is determined by measuring the force applied by the 2 lower arms. The top link is has the pivot load, and for the most part is along for the ride. The TL does not pickup the entire load. If all things were equal it might have 1/3 the load or 1833

As with the first law of hydraulics (Pascal)- Pressure exerted on a confined liquid will act with equal force on all areas. I'm guessing the hydraulic pressure is set for a max of 2500 psi, and if the load increases where the pressure inside the cylinder increases above that setting, the pressure relief valve will open. This keeps hoses and other things from rupture/damage

The main load on the TL is from push and pulling. So the 2 inch cylinder should be more then enough, and I'll also guess this is why the smaller cylinders are listed for Cat 1 tractors by many vendors.

So we just have a difference of opinion based on the facts they we each choose to use.

I'm using a 2.5 inch cylinder, and 1/4 inch 3000 psi lines, to help slow the cylinder and provide more surface area for the load

 

[JNA]

I think I will agree with ALLDODGE and use a 2.5"cylinder

 

[ovrszd]

The smaller cylinder is going to speed up the movement. Not sure the smaller hoses will offset that. You may need restrictors. I like my TL fast.

 

[LD1]

Your using some facts but are not taking all parameters into consideration, so your voicing your opinion.

The lifting force of the tractor is determined by measuring the force applied by the 2 lower arms. The top link is has the pivot load, and for the most part is along for the ride. The TL does not pickup the entire load. If all things were equal it might have 1/3 the load or 1833

As with the first law of hydraulics (Pascal)- Pressure exerted on a confined liquid will act with equal force on all areas. I'm guessing the hydraulic pressure is set for a max of 2500 psi, and if the load increases where the pressure inside the cylinder increases above that setting, the pressure relief valve will open. This keeps hoses and other things from rupture/damage

The main load on the TL is from push and pulling. So the 2 inch cylinder should be more then enough, and I'll also guess this is why the smaller cylinders are listed for Cat 1 tractors by many vendors.

So we just have a difference of opinion based on the facts they we each choose to use.

I'm using a 2.5 inch cylinder, and 1/4 inch 3000 psi lines, to help slow the cylinder and provide more surface area for the load

It isn't a matter of opinion. You are just flat out wrong on so many levels. And it's clear that you have no idea how the geometry of a 3ph works or the forces applied.

2.5" cylinder is worlds better than a 2".

No way in h3ll would I spend the money on a 9540 and then limit myself on 3ph implements because I wanted to skimp on the toplink