How do I assemble my fingerboard?
Why are my trucks falling off?
The screws are probably not tight enough.The bottom of the trucks should look like the image below. The screw should be sticking out a little and the trucks need to be tight to the deck.
If you can fit a piece of paper between the deck and trucks, the screws are not tight enough.
If you have already applied the grip tape, you can feel for the screw with the tool and remove it through the tape. You will create a small hole that will not affect performance and you will not have to replace the tape.
It helps to put the screws into the trucks before attaching them to the deck. Make sure they come out the other side of the hole.
Then take the screws out and attach the trucks to the deck. This gets the baseplate holes threaded and makes it easier to attach the trucks to the deck.
Why does the hanger or wheels keep falling off?
Screws and nuts can loosen over time. A tiny drop of threadlock or even latex paint can help keep the screw/nut secure. And will allow it to be removed or adjusted more easily than if you use super glue. Remember, just a tiny drop applied with a pin will do.