VACUUM CLEANER - REPAIRING AND MAINTENANCE

In this video we can see how to repair a vacuum cleaner. We first check the switches and the brushes.Then the ventilator of the motor. All of them must be very clean without any dust. We clean very well all of them or if it is necessary we change the brushes with new ones. If the machine makes a lot of noise and works with vibration we have to change the ball bearings of the armature . If it smells bad and works only in low rpm , the coils are destroyed and we drop it.(we first get some useful items from the machine -The cable,the voltage regulator, the brushes, the bearings and the switches).
https://youtu.be/mOgrV35RQik