The vacuum cleaner and some other appliances, like all other on 12V. Most appliances that work 220V namely 110V have a stator. The rotor that gets the electricity through the collector that gets the electricity from the brush that is at the same time the weakest and most invulnerable part.
Brush is made of graphite that is applied to the collector that is made of copper or messing so it is so while the collector is spinning the brush is getting wear. They are in most cases the first thing that breaks after usage from 2 to 3 years but they are pretty cheap going from $1 to $3 a piece, and if a non-suitable one can be found a larger one can be taken and you crap it’s edges until the suitable size. A knitted copper wire is going from the graphite that is going through the spring and through the end of messing that are different shapes. But it is not danger if there isn’t a suitable shape. The messing end is taken off by disassembly or by unsoldering or even by ripping and soldering the end that is needed but we have it from the old brush.
Vacuum cleaner repairs
The sound is uneven. Most likely the brush is worn out and she close to her end has in the middle has a copper wire that is weaker and even cause of the sparks it’s getting damaged.
When disassembling it’s the most important thing to pay attention to which order what are we disassembling because usually it’s assembled the opposite way. While disassembling the appliance it’s also important to be soft so that way you don’t damage or break anything so that the repair doesn’t cost even more. In my case I had to flip over my vacuum cleaner. When I flipped it there were 5 screws that I needed a different x screwdriver.
When I took off the cap that was left tied with wires from the switch that I didn’t touch because the wires were long enough that they could work further. We came across a motor that was wrapped in plastic that is on the bottom of the case tied with 4 screws.
When I took them off I could seperate the plastic from it’s bottom layer. The plastic was tied with 3 screws, on her disassembly pay attention to rubber positions on her and in the motor.
We are coming to the brush that we are taking out and going to the store for new ones with same dimensions (they are measured with a vernier scale) or bigger ones we sand paper on the edges to the fitting dimension (while sand papering they can not tread in the case and they can’t have any play) we easily sand paper the collector and we check on all the parts and if one is way too dirty, loose or something similar we repair it. The assembly is going the other way.