Leaking cylinder on a front end loader

Not much to go on Brian.
Kind of like asking what's wrong with my tractor and not saying what the symptoms are.
There are several types of seals and several types of housings.
Some seal retainers need a strap wrench to remove, some use an internal or external spanner wrench, some just use a big wrench and some use bolts.
Some cylinders have a yoke welded on the end of the rod so you have to remove the piston to get the seals over the rod. Others the rod screws into a yoke and seals can be installed without removing the piston from the cylinder or even the cylinder from the loader.
Generally though, seals are not difficult to install though you might need to get creative and make a spanner wrench to remove the seal retainer from the barrel.
 
It's not that hard to rebuild a cylinder. I sometimes leave cylinder and hoses on loader and remove the rod and piston to replace o rings.

Then take rod and cylinder to hydraulic shop. I have two hydraulic shops near me to pick from. Both will sell parts. I can usually buy all the o rings I need for around $25. My hydraulic shops are also a good source for information. You can also buy spanner tools from ebay or amazon. Hydraulic shops charge me around $75-90 for a rebuild. I had some cylinders I gave up on and went to international hydraulics and bought aftermarket cylinders for around $150. Be careful and make sure you get the ports in the correct place. I've had good luck with international hydraulic cylinders.

I had no choice, had a cracked cylinder. That cylinder the ports were in a different location and had to get it from factory, $450.

If you have a loader or backhoe, better learn how to rebuild cylinders. They will sooner or later leak.
 

If it has leaked for a long time and there is dust accumulated on and in the oil, the chrome will be worn off requiring replacement of the rod.
 
Is it the jungle gym type loader? Does it have the aluminum end caps on the ends of the tube? If so, I learned years ago the only seal is in the end cap and can be tightened some if there is packing left to tighten. I took mine apart after I bought it to straighten the shaft and it didn't have a piston so I went to the Ford dealer and asked about a piston and he chuckled and said they don't have a piston. Oil displaces the rod.
 

I'm trying to load a photo to show the type of cylinder on my loader. Thought that that might help but I can't seem to get it to load
Brian
 
(quoted from post at 22:30:12 03/20/17)
I'm trying to load a photo to show the type of cylinder on my loader. Thought that that might help but I can't seem to get it to load
Brian

Does it look anything like this? As mentioned - the single acting cylinders used on many of the "vintage" Ford/Dearborn/Wagner loaders were simple displacement type and the only seal is the rod packing (Item 5 in the picture) which is inexpensive, readily available, and easily replaced.

TOH

liftarmcylinderassembly.jpg
 

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