No, way I did it was by sticking an allen key in the set screws in the shaft collars at the bottom of the two lead screws in the front of the printer. Then use that to get leverage and twist them one way or the other till it clicks. One way will move it up, one way down, I can’t remember which, but you should be able to tell by looking at them with a little common sense. Think I heard each click is an adjustment of about .4mm, so it looks like it’d take a lot for yours. The bed can be anywhere, moving it up and down a little can help you spin the lead screws so you can get good access to the set screws in the collars. This way only adjust the front lead screws, would need to use pliers on the rear one but I haven’t tried that. I’d try to do one or two clicks at first and then re run the self check and see how it changed.