What if I join the brushes with super glue ,will it be able to work again?

probably not the glue would have to conduct electricity.

There is a two part plastic glue found in hardware stores, but if you are trying to end join two narrow pieces together without adding a backing piece, it won't work.

nail polish remover painted on with a nail brush will most likely do the job. .super glue doesn't like acetone so if that doesn't work paint on acetone very carefully.

Probably not. If its plastic, Glue together with super glue to hold it and then run a hot solder iron across the back of join to reseal the joint.

The glue might not work because glue can melt and since it is close to your vacuum motor that creates heat causing it to melt so I personally would just go buy a new one they are like 20$ but if you want to keep on trying glue I think super glue would be your best gues

hi..

use super glues...

mastergani..

What I use for laptop keys, is a super glue with a brush. This way, when you remove the plastic key and the retainer, you take the silicone membrane if it's not sticking in place and turn it around, brushing super glue on the round circle and sticking it back. Let it dry for a few seconds and then put the plastic key and the retainer back.
You can see a more detailed process here: http://www.laptoprepair101.com/laptop/2007/03/20/key-fell-off-keyboard/

Check your re-assembly.

Have you missed a pipe connection somewhere?

usually, this either has a broken Plastic, piece, in which case it can be fixed with a "Tiny" amount Super Glue "Gel" However IF it has broken the "Solder" join, off the main PCB, this will need to be re-soldered, and use the super glue as well.

simply look for the broken part and join it with and adhensive(super glue)...................if that does not work look for a small plastic material of similar thickness.
if possible cut it to fit the broken part and then file both ends.
glue one end with the adhensive and join both ends quickly.
let me know of the outcome.
good luck.