I was just watching a youtube video of how to remove a 260B BH. I considered a number of the presenters actions Quite dangerous, two general one looked like he walked under the boom when it was in the air the other he climbed under the the BH to show it free of the bottom mounts. Then when removing the BH from the tractor he lifted the BH up out of the bottom hook mounts with the stabilizers which meant the DH was high in the air sitting on the hydraulic cylinders. He then said drive the tractor forward 6" to access the power beyond hoses rotate the controls as you do with the FEL to relieve pressure.
When I remove my 260 I put the stabilizers firmly on the ground I then pull the top retaining pins by putting the curled bucket on the ground and using it to push back and loosen the pins then using the bucket controls I tilt the BH away from the tractor till I can install the transit pin in the boom keeping BH as close to the ground as possible. This also gives access to the power beyond hoses to disconnect, the power beyond system depressures as soon as you turn the tractor off unlike the FEL so I don't touch the controls. If I am leaving the BH unattached for more than a couple of hours I install pieced of metal made in a U shape over over the stabiliser cylinders to stop them bleeding down.
My problems with the video were he left the BH high off the ground, if one of the stabilisers bleed bown it could fall over. Also, don't touch any of the controls if the the BH is off the tractor sitting on the stabilisers and bucket while the power beyond is still connected to the tractor, as the cylinders with weight on them could collapse.
I know to most this is common knowledge but to someone new to a tractor this could be dangerous. There are very good how to video around (Hi Tim) but don't take the first one you look at as the right one look at a a few and if you still have questions ask. There are No stupid questions just stupid answers.