Now put a new belt on the engine pulley, and then on the drum pulley, turning the pulley with one hand. Then we remove the drive belt by pulling it with one hand towards ourselves, and with the other turning the pulley. To do this, remove the back of the case using a screwdriver for a hexagon. It is not difficult to replace the drive belt in the machine.
![bosch maxx 4 bosch maxx 4](https://www.manua.ls/gallery/7758542.jpg)
If during rotation there is no resistance, and the drum rotates easily, then the belt either fell off, as it was stretched, or torn. To understand that a belt break has occurred in the washing machine, you can twist the drum by hand. we check the values on all pairs of lamellas, if everything is fine everywhere, then it is not a matter of winding.we look at the indicators of the scoreboard (it should show 0.1, 0.2, 0.3, 0.4 Ohms).we put one probe on one of the lamellas, and the second probe on the second.switch the multimeter into ohmmeter mode.If the lamellas are intact and look as shown in the figure above, the motor winding may be broken.
![bosch maxx 4 bosch maxx 4](https://www.mediakomis.pl/dane/full/f/f1f96de181fa4b57b86d546c750d10d4.jpg)
If they are erased, then we make a replacement, if the brushes are intact, we continue to search for the cause.We check how the motor shaft rotates, then unscrew the small bolts holding the brushes.We unscrew the fixing bolts and remove the motor.We remove the service hatch of the Bosch machine, which is located at her back.If the engine works, rotates the shaft, but as soon as you attach a belt to it, it stops turning it, which means that the problem is in the brushes and you need to change them. It is very important to find out if the engine is not spinning under load or not at all. Everything seems to be logical, but in practice, you still need to understand what happened to the engine itself and why it does not spin the drum. The drum in a Bosch brand washing machine may stop spinning if the engine does not spin it. Important! In cases where the drum spins, but badly, there may be more reasons. a foreign object hit the drum, which jammed the rotation of the drum.worn brushes and lamellas of the engine.
![bosch maxx 4 bosch maxx 4](https://i.ebayimg.com/images/g/OsoAAOSwhmJZ4wZk/s-l300.jpg)
the drive belt has flown off the pulley or torn.