Combine headers are similar to loaders. During my first year at work another guy and I climbed under a corn head to clear vines wrapped around the snapping rolls. We failed to engage the safety ram stop. While we were working, engine stopped, no one around the controls, an o-ring happened to blow and the corn head came down. Fortunately it took a couple seconds to drop so we were able to scramble out but lesson learned. Mechanical things do fail without human intervention - is it really worth the risk? I also had to ,look at the coroners pictures of two guys crushed under a falling corn head. In this case we proved it was their fault and so were not liable but they lost their lives for the sake of saving the minute or so it takes to set a safety stop. My brother in law got a good deal on a combine because it was a killer. The first time the owner was pinned under the head somebody saw him and raised it so all he got was bruises. The second time the people who discovered his body also found the scratch marks where he tried to claw dirt as he was slowly asphyxiated. No, I want to be shot by a jealous husband, not die under a piece of equipment.
Sounds like TSO and some others here just need bigger barns or sheds!!!!! That will completely solve the issue of not having enough room to walk around, or drive under stuff! Don't we all need bigger barns lol.
I store my loader up to free up floor space and use angle iron with zip ties attached in 4 places to prevent contact with the cylinder rod.
As mentioned care must be taken not to damage the gland seal.
I did not read all the posts so I will mention that you must not store the loader in the fully up position especially if the tractor is cold and will be stored in a warm area.
The problem is that as the hydraulic oil warms it expands and will create excessive pressure if the loader is fully up, there is no pressure relief to bleed pressure off.
I drop my loader down to the supports and leave it in the float position to prevent it from rising and allowing the supports to fall out.
Now here is a true Darwin Award wannabe. Home made Firework - YouTube