How to Do Makita HR4000C Hammer Drill Repair Rotor Replacement Detailed Maintenance

In this video, I replaced the exhausted rotor of the Makita HR4000C model rotary hammer drill, disassembled it completely, cleaned it in detail, then collected it with new transmission oil and made it ready to work as much as I could. I hope it will be of use to the viewers. Don't forget to subscribe to the channel and turn on notifications for new videos :) #Restoration