I have done a couple, it is no big deal. The ramps are the heaviest part, but the ramps on a HD9 aren't too bad compared to a 12 or a 14. In my experience the easiest way is to back a car trailer under the lift, then lower the ramps onto the trailer use a couple of 4X4s to raise them a bit off the trailer, disconnect the air lines and hyd hookup from the pump and unbolt the top plate and un-screw the cables and the safety catches bars (the ramps are sitting on the trailer so nothing is going anyplace) unbolt them from the cross pieces,then move the posts and cross pieces on the back of the trailer away from that part of the ramps,which you have jacked up a bit so they are not in contact with the cross piece and pry them off one the other end so it falls on the trailer(a floor jack and a couple of 3' 4X4 works great doing this) the cross pieces slide in the posts and once you remove the cable attachment from the top (which you need to do before you slide the ramps off the cross pieces) you can unbolt them from the floor, if they are bolted. All the cables need to be pulled free from where they go through the cross pieces, duct tape or zip tie them together and lay them on the trailer with the ramps. Remove the power unit from the post after you remove the electric hook up, so you don't mess it up. Good time to move the trailer out from the lift and the easy way is to do this, grab the front cross piece in the middle and lift it up a foot to clear the ramps, it is not that heavy , then lay the posts down, slide the safety bar and cross piece out the top and put them on the trailer, tie everything down and take it home. I had put two together before I scored my HD12 which was assembled. It took me about 45 minutes to dissemble it and strap all the parts to the trailer, by myself with nothing more that a HF racing jack and some 4X4s. Assembly was less than an hour using 6X6s jack stands and two floor jacks. good luck and enjoy your lift, you will wonder how you did anything without it.
