To anyone using superglue to put something securely onto something else a few things need to be considered.
First up if the model is painted and you want to securely stick a after market part on the gently scrape away a small area of paint and stick the part to the actual body not the painted surface. It will still stick to the paint surface but it can very easily come off if accidentally knocked or something. A small touch up may be needed after to hide the paint that was removed.
Next is roughing up components if it is possible. A quick bit of sanding on either brass parts or resin pieces of any type of resin where a glue join has to be made will make it a stronger grip. Super glue does not like resins used to make kits for model railways and roughing up the joins will save much hair pulling and blue language as well. Roughing up pieces makes the surface area greater and thus the glue has a better hold on it. Brass is flat and very smooth so rough up the back of it. Brass also corrodes quickly and this corroding can sometimes interfere with the glue that needs to be super glued to another material.
Are the parts clean as like painting or even soldering cleaniness is the best way to go, even the grease or oil from your skin can stop a good glue joint being made. Handle the actual joins before gluing using clean rubber gloves or something so you do not touch the actual model with your bare hands.
And finally like Allan said super glue needs a tight fitting join to make a good joint, capillary action will draw the glue into a joint. So keep fingers away from joints while gluing them.
Above all it might say that it glues it in a minute or so, and it usually does, but allow it to fully set overnight or 24 hours before you go and do anything more to it.
The less you use the better it will be, super glue is not like other glues were more is better as if you do use more it can actually weaken a joint rather than make it stronger.
Oh and a golden rule for kits is if you use super glue to hold a section in place then use some other kind of glue like a two part epoxy or something to give a stronger hold on any joint that could have stress on it as superglue is no good for parts that are under any real stress all the time they will eventually let go.
One other thing is do not use superglue to put in window material of any sort it will fog the windows over very badly more so if it is inside an enclosed model.