It took me a while to find a proper replacement motor (identical to the original) for a front brush of a Sencor SRV4250 hoover. Motor gearbox nr. BL500-T2
No load current consumption at 12V: 15 mA
No load current consumption installed into the greased gearbox 12V: 25 mA
Stall current: 190 mA @ 12V
I bought one and opened up, to save you from doing that :D.
![](images/20220720_090918.jpg)
![](images/20220720_090934.jpg)
![](images/20220720_090946.jpg)
![](images/20220720_090918.jpg)
![](images/20220720_090934.jpg)
![](images/20220720_090946.jpg)
Never call QTableView::scrolltoBottom from slots connected to the model's rowsInserted signal because as the rows added they will start to appear partially:
![](images/scrolltobottom_in_rowsinserted.png)
Connect your slots to the QTableView::verticalScrollBar's rangeChanged signal
![](images/Screenshot_20230220_211709.png)
![](images/scrolltobottom_in_rowsinserted.png)
Connect your slots to the QTableView::verticalScrollBar's rangeChanged signal
![](images/Screenshot_20230220_211709.png)
Got a broken Dewalt DCG414 angle grinder to look for the issue.
It has a 54V BLDC motor with builtin ESC mfr P/N: N599252.
The only option is to buy the ESC with the motor and the trigger circuit for ~180 GBP...
I removed the ESC from the motor. The ESC is potted with some PUR resin, so I started to carefully remove it.
It turned out that the low side MOSFETs were blown.
![](images/Dewalt_N599252_total.jpg)
![](images/Dewalt_N599252_top.jpg)
![](images/Dewalt_N599252_bottom.jpg)
It has a 54V BLDC motor with builtin ESC mfr P/N: N599252.
The only option is to buy the ESC with the motor and the trigger circuit for ~180 GBP...
I removed the ESC from the motor. The ESC is potted with some PUR resin, so I started to carefully remove it.
It turned out that the low side MOSFETs were blown.
![](images/Dewalt_N599252_total.jpg)
![](images/Dewalt_N599252_top.jpg)
![](images/Dewalt_N599252_bottom.jpg)