Makita Angle Grinder GA9020 DIY Diagnose and repair

[@unItalianoinAustralia]

Hi, just a few questions: the wiring is it important like positive/negative?
Also, what's the cleaner? Thanks

[@powertoolsclinic]

That cleaning component is my mixture, you can check your local cleaning trading in your country

[@jt9498]

Bad lighting, terrible camera angle, no test at the end. Sorry but, not a very good video.

[@powertoolsclinic]

Thanks for your comment but I don't have a good camera,