I was surprised to see that someone uses the pedal trap hanger, (lyre) to
support the piano during the process of tipping the piano onto its side.
I have moved nearly 200 grands over the years and removing the pedal trap
hanger and any supporting rods it may have is one of the very first
things I do. In one instance of a square piano it was removed before I
could do it by the ladies very large dog that barreled into it. It
didn't appear to be very strong.
I suppose it can hold up the weight of the piano but I wouldn't want to
try it and I'd not likely advise anyone else to do it.
One thing though, it helps to be well over six feet tall and strong
enough to lift and load a piano by myself. I used to hire a helper when
I didn't feel super strong but most of the time I did all of it myself.
If you are of average height and strength hiring a helper would probably
be the better idea.
It is possible to cause a lot of damage if you tackle a job by yourself
and you might just wish you had someone else with you. Be safe first of