um, excuse me.
Superglue works just fine. I'm not familiar with this "pliobond". It may work well too.
You'll not find Elmer's helpful. As I mentioned earlier, superglue did the trick on my stellar Dial A Matic.
Several people can give equally useful advice in this forum,one of the very reasons for said forum.
For most of us, Crazy glue, Super glue, etc are readily available. Where does one find this wonder adhesive called "Pliobond"?
Again, best of luck with your fabulous new Hoover Convertible "Deluxe".
Upon consulting with the best expert in all things HOOVER, AND upon closer inspection of your photo, it appears that the spring is not connected to the axle, resulting in a floppy axle. And, who needs a floppy axle? No one. To remedy this, simply reconnect the spring to the axle and your height adjustment problems are a thing of the past.
Now, we must be on the lookout for your "tools".