Freeman Loader Cylinders

Glenn D

Member
Hi Folks

My 9N came with a freeman loader. the loader was in tough shape, the mounting frame for it was frankensteined but I managed to get it working.

I don't want to use this loader anyway but I do what to use the cylinders off it. I found a trailer that has a sturdy enough frame to stick a dump box on it so I intend to use those 2 cylinders from the loader to do that. one of them leaks badly so I'd like to change all the seals and and/or cups in them. Does anyone know of a diagram that shows what is needed or should I send d them in to get done somewhere?
 
(quoted from post at 16:48:54 10/06/14) Hi Folks

My 9N came with a freeman loader. the loader was in tough shape, the mounting frame for it was frankensteined but I managed to get it working.

I don't want to use this loader anyway but I do what to use the cylinders off it. I found a trailer that has a sturdy enough frame to stick a dump box on it so I intend to use those 2 cylinders from the loader to do that. one of them leaks badly so I'd like to change all the seals and and/or cups in them. Does anyone know of a diagram that shows what is needed or should I send d them in to get done somewhere?

Got a part number off the cylinders? If it is one of the older loaders with single acting lift cylinders there are no cups or internal seals and the external leak is likely the shaft packing.

TOH
 
(quoted from post at 20:45:32 10/06/14)

Got a part number off the cylinders? If it is one of the older loaders with single acting lift cylinders there are no cups or internal seals and the external leak is likely the shaft packing.

TOH

Ahh didn't get the part number off the cylinders. didn't think to look and the pic I took of the plate on the loader didn't come out. They are pretty old though.. (stupid thing to say wasn't it?) They have a large hex on the end and it looks like where the packing would go is held on with 5/16 or so hex bolts. How does the packing work on those? is it like a rope and then the plate compresses it? Wouldn't the piston have some sort of seal around it?
 

These look like the cylinders on my freeman loader. Mie look way better that these.. except for when they are dripping oil everywhere

Courtesy of NWMO 901 SOS

IM000268.jpg
 
(quoted from post at 19:51:57 10/06/14)
(quoted from post at 20:45:32 10/06/14)

Got a part number off the cylinders? If it is one of the older loaders with single acting lift cylinders there are no cups or internal seals and the external leak is likely the shaft packing.

TOH

Ahh didn't get the part number off the cylinders. didn't think to look and the pic I took of the plate on the loader didn't come out. They are pretty old though.. (stupid thing to say wasn't it?) They have a large hex on the end and it looks like where the packing would go is held on with 5/16 or so hex bolts. How does the packing work on those? is it like a rope and then the plate compresses it? Wouldn't the piston have some sort of seal around it?

The old SA cylinders do not have a "piston" just the rod which is a close fit to the bore of the cylinder. Hydraulic pressure works directly on the end of the rod and the only pressure seal is the packing on the rod end of the cylinder. It is typically chevron packing rings -- aka "vee" packing. And yes the plate compresses it slightly to hold the edges of the sealing rings tight to the rod and cylinder.

TOH
 
(quoted from post at 08:51:23 10/07/14)
(quoted from post at 19:51:57 10/06/14)
(quoted from post at 20:45:32 10/06/14)

Got a part number off the cylinders? If it is one of the older loaders with single acting lift cylinders there are no cups or internal seals and the external leak is likely the shaft packing.

TOH

Ahh didn't get the part number off the cylinders. didn't think to look and the pic I took of the plate on the loader didn't come out. They are pretty old though.. (stupid thing to say wasn't it?) They have a large hex on the end and it looks like where the packing would go is held on with 5/16 or so hex bolts. How does the packing work on those? is it like a rope and then the plate compresses it? Wouldn't the piston have some sort of seal around it?

The old SA cylinders do not have a "piston" just the rod which is a close fit to the bore of the cylinder. Hydraulic pressure works directly on the end of the rod and the only pressure seal is the packing on the rod end of the cylinder. It is typically chevron packing rings -- aka "vee" packing. And yes the plate compresses it slightly to hold the edges of the sealing rings tight to the rod and cylinder.

TOH

Good info. thanks
 

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