Ford 3000 hydraulics leak

[get stuck]

My 1973 Ford 3000 Hydraulics won't hold pressure, they will sage over time, by morning the 3 point hitch will be on the ground this is true with the bucket as well.....although i don't leave the bucket in the up position.
How can I check the pump to see if it is leaking or something else?

 

[nyone]

Well it is a 52yr old machine. I would just park it so the attachments and 3pt are on the ground like they should be.

 

[GrandpaSmurf825]

nyone has summarized it pretty well. Your pump has nothing to do with the issue. The loader is a different control valve than the 3 point. The cylinders can also bypass internally causing this. Overnight is not a big issue. If you can watch them leak down that's a big enough issue to consider digging deeper on. So that brings me to this. Never trust hydraulics alone to hold a suspended load. That's why mechanical locks are used on a lot of pieces of equipment. A positive lock for holding a loader in the air for servicing. An implement often has a way to lock it up so the cylinder isn't what is keeping it raised. Sitting the loader on the ground or the 3 point implement is the best thing.