Oh, I think I understand the problem now....the arm swings instead of staying in one place where you put it...

There is a screw somewhere to tighten that. I think the screw is a hex screw down where the bar is inserted into the trem unit. Just tighten that screw and the bar will not swing freely anymore.


Yeah, locking trem means that the strings are locked at the bridge and at the nut.....the 3 little hex screw up at the headstock, those are the locks.